MSME-TOOL ROOM – HYDERABAD

CENTRAL INSTITUTE OF TOOL DESIGN (CITD)

(A GOVT. OF INDIA SOCIETY, MINISTRY OF MSME)

Balanagar, Hydrabad 500037 (A.P) INDIA

A PROJECT REPORT ON

MODELLING AND ASSEMBLY OF RADIAL ENGINECOMPONENTS

By

MR. D. VENKATESHWARLU

MECHANICAL ENGINEERING

NIT WARANGAL,

ANDHRA PRADESH

ACKNOWLEDGEMENT

It is a great pleasure to present this mini project report carried out in the CENTRAL INSTITUTE OF TOOL DESIGN, HYDRABAD. I express my heartily gratitude to Mr. Shujayat khan (Principal Director) CITD who gave us an opportunity to undergo mini project in CENTRAL INSTITUTE OF TOOL DESIGN.

I am very thankful to Mr. V. Krishnaswami (Director) CITD for extending his co-operation throughout the project.

I would like to express my sincere gratitude to Mr.Vijaya Kumar sir (Asst. Director) CITD who has initiated the concept of our project and affectionate disposition extended to enable us to complete this project work.

I also express my sincere thanks to regards to Mr. Uday Kumar sir for his excellent guidance and co-operation for the successful completion of my project.

INDEX

CERTIFICATE

ACKNOWLEDGEMENT

DECLARATION

ABSTRACT

LIST OF FIGURES

LIST OF TABLES

COMPANY PROFILE

1. Introduction

1.2 Radial Engine

1.3 Classification of Radial Engine

1.3 Applications of Radial Engine

2. CATIA Software

2.1 Benefits of CATIA

2.2 Application of CATIA

2.2.1 Industries Using CATIA

2.2.2. Aerospace

2.2.3. Automotive

2.2.4. Shipbuilding

2.2.5. Future Implementation.

2.3 Applications of CATIA in Modeling

2.4. Geometric modeling

2.4.1 Steps for Creating the Geometric Model

2.4.2Representation of the Geometric Models

2.5. MODULES in CATIA

2.6. Part Drawing in CATIA

2.7. Assembly module

2.8. Drafting Workbench

3. Conclusion

4. References

ABSTRACT

Radial engine was used in all U.S. Bombers and transports aircraft

and in the most of the other categories of aircrafts. A single row radial

engine has an odd number of cylinders extending radially from the centre

line of the crank shaft. The number of cylinders usually ranges from 5 to

9 cylinders. The radial engine are arranged evenly in the same circular

plane and all the pistons are connected to a single throw 360o crankshaft

thus reducing the both the number of working parts and the weight.

The radial engine has the lowest weight to horsepower ratio of all

the different types of piston engines. It has the advantage of greater

during because of the area preserved to the air, and it eliminates some

problem in cooling. Dependability and efficiency of engine have made it

most widely used type of large aircraft equipped with reciprocating

engine.

The modeling of the radial engine components are modeled and

assembled by using modeling package (CATIA V5R18). It is the most

advanced Three Dimensional Interactive Power Tool in modeling. By using

Catia Software, it optimizes the design and modeling time with accuracy

compared to other modeling packages.

The finite element analysis of radial engine components are

performed by using Ansys 12.1 (Advanced Numerical system simulation).

In ansys software, we can perform structural & thermal analysis under

various loading condition.

The stress levels & deformations of components at various loading

conditions are obtained for the safe design consideration.

COMPANY PROFILE

Central Institute of Tool Design (CITD)

Established in 1968 by the Govt. of India with the assistance of UNDP and

ILO, is a pioneering institution in the field of Tool Engineering in the

Country. The Institute was initially established d as an United Nations

Development Programme (UNDP) Project and was executed by

International Labour Organisation (ILO). The Precision machinery and

equipment was donated by UNDP and the faculty was trained abroad in

the area of Tool Engineering. The UNDP Experts stayed at CITD for about

5 years and trained Officers, faculty & Staff of CITD in manufacture and

design of tooling.

Hydraulics Trainer with PID Controls, PLC Trainer, Sensors

Technology Trainer, Modular Production System with Testing, Processing,

Handling and Sorting Stations, Cut Section models of various Elements,

Transparent working models of Hydraulics element etc.,

The CAD/CAM Centre is equipped with latest hardware like Compaq

workstations. IBM, DELL Systems, Pentium IV Systems and Software like

Auto CAD, MDT ideas NX11, Pro-E Wildfire, CATIA V5, UG, ANSYS,

NASTRAN, Hyper mesh, Master Cam, Del Cam, Solid Work, Solid edge etc.

The institute has a special Library with collection of technical books in Tool

Engineering field and subscribes to various International Journals like CIRP

Annals, American Machinist, Journal of Engineering Materials &

Technology (ASME), Precision Engineering ( JAPAN) and Precision Tool

Maker etc., The Documentation Centre collects and organizes information

and data useful for the technological advancement in Tool Engineering.

For the dissemination of information, the centre publishes a computerized

current awareness abstracting bulleting and provides technical enquiry

service. Ds The Institute also extends its services to the developing

countries by imparting knowledge and necessary skills to their personnel

in the field of Tool Design, CAD/CAM and Low Cost Automation

Techniques.

Activities:

CITD conducts several regular and part-time training programmers

in the field of Tool Design & Manufacture, Low Cost Automation, Macaronis

and Computer Aided Design & Computer Aided Manufacture for the

benefit of National & International Participants. It also conducts short

term courses, Special Purpose Clinics in Tool Engineering, Seminars,

Tailor-made programmers, in various disciplines for the benefit of working

personnel Apart from training, CITD has been making significant

contribution in meeting the needs of industries in design and

manufacturing of quality tools. CITD provides full-fledged consultancy

and servicing facility to large, medium and small scale industries in the

country. This includes assistance in design and development of tools for

various purposes and it also recommends measures to standardize tools

and tooling elements, components of jigs & fixtures, Dies and Moulds and

other tools. CITD is a member on various technical committees of Bureau

of India Standards.

CITD conducts several regular and part-time training programme in

the field of Tool Design & Manufacture, Low Cost Automation,

Mechatronics and Computer Aided Design & Computer Aided

Manufacturer for the benefit of National & International participants. It

also conducts Short-term courses, Special Purpose Clinics in Tool

Engineering, Seminars, Tailor-made Programmes, in various disciplines for

the benefit of working personnel.

Apart from training, CITD has been making significant contribution

in meeting the needs of industries in design and manufacturing of quality

tools. CITD provides full-fledged consultancy and servicing facility to

large, medium and small scale industries in the country. This includes

assistance in design and development of tools for various purposes and it

also recommends measures to standardize tools and tooling elements,

components of jigs & fixtures, Dies and Moulds and other tools. CITD is a

member on various technical committees of Bureau of Indian Standards.

Objective:

The objective of the institute is to meet the requirements of the

Industries in the field of Tool Design and manufacture and to train the

technical personnel in these fields. The Institute has strong links with

industries to impart practical knowledge by way of undertaking tooling

assignments.

Facilities:

The Institute has a well equipped Tool Room with sophisticated CNC

machines like CNC EDM ( Charmilles Roboform 54), CNC Wirecut EDM

( AGIE Cut Classic –III & Electronics), 4-Axis & 5-Axis High-Speed

Machining centres, Kellenberger CNC Cylindrical Grinding Machine and 3D

Coordinate Measuring Machine with Scanning and Digitization facilities.

The Institute is equipped with latest versions of EMCO Table Top CNC

turning and Milling machines with dosed loop systems to impart training in

CNC Programming. The Calibration laboratory is set up in CITD with

Universal Horizontal metroscope ULM OPAL 600 Carl Zeiss Technology,

Germany and slip Guage Measuring Unit 826 with Millitron 1240, Mahr,

Germany, to Calibrate Limit Guages, Micrometers, Dial Indicators, etc.

The automation Centre is equipped with various simulator training kits like

advanced Pneumatics Trainer, Advanced Electro Pneumatics Trainer with

PID Controls, Advanced Hydraulics Trainer, Advanced Electro Hydraulics

Trainer, Closed loop

Documentation & LibraryDOCUMENTATION CENTRE;

The documentation centre is the recent addition to the CITD. This

has started functioning from 1984 onwards. Subscription is made to

about 29 National and International periodicals in the field of tooling (tool

design & manufacture). The documentation provides abstract service to

the industry/faculty/trainees with the selective dissemination of

knowledge in the field of tool design and tool manufacture. The facilities

of library/documentation is open for reference to all interested engineers

including trainees/faculty and personnel from industry.

LIBRARY:

CITED has a full-fledged special library with a collection of 6000

technical books on various disciplines of Tool engineering and allied

subjects. CITD has published 250 books on related subjects prepared by

ILO Experts and CITD Faculty. CITD is the member of many professional

bodies such as American Society for Metals, Die Casting Society of India,

Indian Society of Tool Engineers, Indian Standards Institution, Indian

Society of Manufacturing Engineers, Indian society for Technical

Education, Fluid Power Society of India. The Library has got standards,

reports, films, Photostat documents for reference. The Library subscribes

to National and International Periodicals for the benefit of trainees &

Clientele. For effective functioning of the Tool Room, better performance

of the Faculty in their respective classes and the relevant machines, the

library is the living agency which feeds them with selective dissemination

of knowledge in right time with right technical literature. This library is

open for reference to all interested engineers.

CAD/CAM Courses:

Courses on CAD/CAM

“Post graduate” diploma in CAD/CAM for tool engineering “

PGDCTE”

Master Certificate in Computer Aided tool engineering ( MCTE)

Master Certificate in CAD/CAM( M-CAD-CAM)

Mechanical CAD/CAM

Mechanical CADD

Computer Aided Engineering

Advanced CAD/CAM

1. INTRODUCTION

The radial engine has been the work horse of military & commercial

air craft ever since the 1920’s and the world war-I. Radial engine was

used in al U.S. Bombers and transports aircraft and in the most of the

other categories of aircrafts. They were developed to a peak of efficiency

and dependability and even today. In the jet age, many are still in

operation throughout the world in all types of duty.

The radial e Radial engines reached their Zenith during WWII (World

War II). There are some radial engines around today, but they are not

that common. Most propeller-driven planes today use more traditional

engine configurations (like a flat four-cylinder) or modern gas turbine

engines. Gas turbines are much lighter than radial engines for the power

they produce.

The radial engine idea is very simple; it takes the pistons and

arranges them in a circle around the crankshaft.

You can see in the illustration that this is a five cylinder engine-

radial engines typically have anywhere from three to nine cylinders. The

radial engine has the same sort of pistons, valves and spark plugs that

any four-stroke engine has. The big difference is in the crankshaft.

Instead of the long shaft that’s used in a multi-cylinder car engine,

there is a single hub all of the piston’s connecting rods connect to this

hub. One rod is fixed, and it is generally known as the Master rod. The

others are called Articulating rods. They mount on pins that allow them to

rotate as the crankshaft and the pistons moves.

Radial engine (5 Cylinder)

5 cylinder radial engine Diesel radial engine

Radial engine with propeller

1.1 RADIAL ENGINE

The radial engine has the lowest weight to horse power ratio of all

the different types of piston engines. It has the advantages of greater

during because of the area preserved to the air, and it eliminates some

problem in cooling. However dependability and efficiency of engine have

made it mostly widely used type of large aircraft equipped with

reciprocating engine.

A Single row radial engine has a odd number of cylinders extending

radially from the centre line of the crank shaft. The number of cylinders

usually ranges from 5 to 9 cylinders. The radially engine are arranged

even ally in the same circular plane, and all the pistons are connected to a

single throw 360o crankshaft thus reducing the both the number of

working parts and the weight.

A double row radial engine resembles two single-low engine

combined on a single crankshaft the cylinders are arranged in radially in

two rows, and each row has an odd members cylinders used in either 14

or 18, which means that the same effect is produced as having either two

even cylinders engines or two nine cylinder engines joined on one

crankshaft. A two throw 180deg crankshaft is used to permit the cylinder

in each row to be alternating staggered on common crank case that is the

cylinders of the rear row are located directly behind the space between

the cylinders. Both rows receive ram air for the necessary cooling.

1.2 TYPES OF RADIAL ENGINE’S:

3-CYLINDER ENGINE (Szekely SR-3L)

5-CYLINDER ENGINE (Kinner K5)

6- CYLINDER ENGINE( Curtiss Challenger R-600)

7- CYLINDER ENGINE( Jacobs R-755)

9- CYLINDER ENGINE( Wright Cyclone r-1820)

3 cylinder radial engine

7 cylinder radial engine

6 cylinder radial engine

11 cylinder radial engine

1.3. DOUBLE ROW ENGINE:

14-CYLINDER ENGINE ( Wright Cyclone R-2600)

18-CYLINDER ENGINER ( Wright Cyclone R-3350)

14 cylinder radial engine

18 cylinder radial engine

1.4 MULTI-ROW RADIALS

Originally radial engines had but one row of cylinders, but as engine

sizes increased it became necessary to add extra rows. Most did not

exceed two rows, but the largest radial engine ever built in quantity, the

Pratt & Whitney Wasp Major, was a 28-cylinder 4-row radial engine used in

many large aircraft designs in the post-World War II period. The USSR

also built a limited number of Zvezda 42-cylinder diesel boat engines

featuring 6 rows with 7 banks of cylinder, bore of 160 mm, and total

displacement of 144.5 liters. The engine produced4500 KW at 2500 rpm.

Multi row engine

APPLICATION

Radial engines have a relatively low maximum rpm (rotation per

minute) rate, so they can often drive propellers without any sort of

reduction. Most propeller-driven planes today use more traditional engine

configuration (like a flat four-cylinder) or modern gas turbine engines.

Gas turbines are much lighter than reduction gearing.

Because all of the pistons are in the same plane, they all get even

cooling and normally can be air-cooled. That saves the weight of

water-cooling.

They can produce a lot of power.

CAD/CAM/CAE

COPUTER AIDED DESIGN:

Computer-aided design (CAD) is the use of a Wide range of

computer-based tools that assist engineers, architects and other

design professionals in their design activities. It is the main geometry

authoring tool within the product Lifecycle Management process and

involves both software and sometimes special-purpose hardware.

Current packages range from 2D vector based drafting systems to 3D

parametric surface and solid design modelers.

CAD Packages can be classified into three types: 2D drafting

systems (e.g. Auto CAD, Micro station): mid-range 3D solid feature

modelers (e.g. Iron CAD, Solid works, Solid Edge); and high-end 3D

hybrid systems ( e.g. Pro/ENGINEER, CATIA, NX Unigraphics).

COMPUTER-AIDED MANUFACTURING:

Computer-aided manufacturing (CAM) is the use of computer-based

software tools that assist engineers and machinists in manufacturing

product and components. CAM is a programming tool that makes it

possible to manufacture physical models using computer aided design

( CAD) programms, CAM creates real life versions of components

designed within a software package. CAM was first used in 1971 for

car body design and tooling.

CAM has been considered as a numerical control (NC) Programming

tool wherein three dimensional ( 3D) models of components generated in

CAD software are used to generate CNC code to drive numerically

controlled machine tools.

COMPUTER-AIDED ENGINEERING:

Computer-aided engineering (CAE) is the use of information

technology to support engineers in tasks such as, analysis, simulation,

design, manufacture, planning, diagnosis, and repair. Software tools that

have been developed to support these activities are considered CAE tools.

CAE tools are being used, for example, to analyze the robustness and

performance of components and assemblies. The term encompasses

simulation, validation and optimization of products and manufacturing

tools. In the future, CAE systems will be major providers of information to

help support design teams in decision making.

In regarding to information networks CAE systems are individually

considered a single node on a total information network and each node

may interact with other nodes on the network. CAE systems can provide

support to business. This is achieved by the use of reference

architectures and their ability to place information views on the business

process. Reference architecture is the basis from which information

model, especially product and manufacturing models.

CAD/CAM and CAE are used to design and develop products, which

can be goods used by end consumers or intermediate goods used in other

products. They are also extensively used in the design of tools and

machinery used in the manufacture of components. They are also used in

the drafting and design, analysis, simulation, design, manufacture,

planning, diagnosis, and repair of all types of buildings, from small

residential types ( houses) to the largest commercial and industrial types

of buildings, from small residential types ( houses) to the largest

commercial and industrial types ( hospitals and factories). They are used

throughout the engineering process from conceptual design and layout,

through details engineering and analysis of components to definition of

manufacturing methods.

FIELDS OF USE

Architecture

Industrial Design

Engineering

Garden design

Building engineering

Mechanical (MCAD)

Automotive

Aerospace

Consumer goods

Machinery

Ship Building

Electronic and Electrical (ECAD)

Manufacturing process Planning

Digital circuit design.

Output directly to a Rapid Prototyping or Rapid Manufacture

Machine for

Industrial prototype.

Maintain libraries of parts and assembly

Calculate mass properties of parts and assemblies

Aid Visualization with shading, rotating, hidden line removal, etc.

Kinematics, interference and clearance checking of assemblies

Sheet metal

Hose/cable routing

Electrical component packaging

Inclusion of programming code in a model to control and relate

desired

Attributes of the model.

Programmable design studies and optimization

Sophisticated visual analysis routines, for draft, curvature,

curvature continuity.

Software applications

Apparel and Textile CAD

CAPABILITIES OF CAD/CAM AND CAE SYSTEMS:

The Capabilities of modern CAD/CAM and CAE Systems include:

3D parametric feature based modeling, Solid modeling

Automated design of assemblies, which are collections of parts

and/or other

Assemblies.

Create Engineering drawings from the solid models.

Re-use of design components

Ease for modification of design of model and the production of

multiple versions

Automatic generation of Standard components of the design

Validation/verification of designs against specifications and

design rules.

Simulation of designs without building a physical prototype

Output of engineering documentation, such as manufacturing

drawings, and

Bills of materials to reflect the BOM required to build the product.

Import/Export routines to exchange data with other software

packages.

Output of design data directly to manufacturing facilities.

2. CATIA

2. CATIA V5 R18 (Computer Aided Three Dimensional Interactive

Application)

As the world’s one of the supplier of software, specifically intended

to support a totally Integrated product development process. Dassault

Systems (DDS) in recognized as a strategic partner which can help a

manufacturer to the turn a process into competitive advance, greater

market share and higher profits and industrial and mechanical design to

functional simulation manufacturing and information management.

Catia Mechanical design solution will improve our design

productivity. Catia is a suit of programs that are used in design, analysis

and manufacturing of a virually unlimited range of the product.

“ Feature based” means that we create parts and assemblies by

defining feature like extrusion sweeps, cuts, holes, round and so on

instead of specifying low level geometry like lines, areas circles. This

means that the designer can think of the computer model at a very high

level and leave all low geometry detail for Catia to figure out.

“Parametric” means that the physical shape of the part as assembly

is driven by the value assigned to the attributes of its features. We may

define or modify a feature dimension or other attributes at any times. Any

changes will automatically propagate through the model.

“Solid Modeling “ means that the computer model we create is able

to contain all the information that a real solid object would have. It has

volumes and therefore, if you provide a value for the density of the

material it has mass and inertia.

2.1 Benefits of CATIA:

1. It is much faster and more accurate than any CAD system.

2. Once design is complete, 2-D and 3-D views are readily

obtainable.

3. The ability to change in late design process is possible.

4. It provides a very accurate representation of model specifying

all the other dimensions hidden geometry etc.

5. It provides a greater flexibility for change, for example, if we

like to change the dimensions in design assembly,

manufacturing etc. will automatically change.

6. It provides clear 3-D Model which are easy to visualize or

model created and & it Also decrease the time required for the

assembly to a large extent.

2.2. CATIA Applications

Feature and Capabilities

Commonly referred as a 3D product lifecycle management

software suite. CATA support multiple stages of product development

(CAx). The stages range from conceptualization, through design (CAD) and

manufacturing (CAM) until analysis (CAE), as of 2007 the latest release is

V5 release 18(V5R 18)

2.2.1 Industries using CATIA:

CATIA is widely used through the engineering industry, especially in

the automotive and aerospace sectors, CATIA V4, VATIA V5 are the

dominant systems.

2.2.2. AEROSPACE:

The Boeing Company used CATIA to develop its 777 airliner, and is

currently using CATIA V5 for the 787 series aircraft. European aerospace

giant airbus has been using CATIA since 2001. In 2006 airbus announced

that the reduction of it airbus 380 using catia. Canadian aircraft maker

bombardier aerospace has done all if its designing on catia.

2.2.3. AUTOMOTIVE

Automotive Companies that use CATOA to varying degrees are

BMW. Porsche, Daimler, Chrysler, Audi, Volvo, fiat, Gestamp Automaocian,

benteler AG PSA, Pevgcot Citroen, Penault, Toyota, Honda, ford Scania,

Hyundai proton (company), TATA motors and Mahindra Goodyear uses it

in making tires for automotive and aerospace and also uses a customized

CATIA for its design and development. All automotive companies sue

CATIA for car structures door beams IP supports, bumber beams root rails,

side rails, body components because CATIA is very good in surface

creation and computer representation of surfaces.

2.2.4. SHIPBULIDING:

Dassault system has begun serving shipbuilders with CATIA V5

release 8. which includes special features useful to shipbuilders, GD

Electric boat used CATIA to design the latest fast attack submarine class

for the united states Navy, the virgina class, Northrop Grumman Newport

news also used CATIA to design the Gerald R.Ford class of supper carries

for us navy.

2.2.5. FUTURE IMPLEMENTATION

Dassualt system has announced plans to release CATIA version 6

(V6) in mid 2008. the new interface allows designer to work directly with

the 3D solid model rather than the feature based design approach

employed in CATIA V5. This version will also improve the product life

cycle management in a revolutionary way. This concept is called PLm.2.

(in reference of the so called revolution in the internet called web 2.0)

2.3. Applications of CATIA in Modeling:

CATIA Mechanical design solutions offer a modeler a robust

supporting unlimited geometric complex ability and advanced surfacing

capabilities ensuring an accurate representation of our design.

CATIA automatically embeds design intent into models providing the

flexibility to optimized designs easily and effectively, as we need.

CATIA offers intelligent product modeling consisting of familiar

parametric features that react predictably to any change. This enables

rapid alternatives all in a logical engineering environment.

Full associatively guaranties the propagations of design changes

automatically throughout the entire system providing the update

deliverables such as assemblies, drawing, finite element models, mould

process plans and complete manufacturing data.

CATIA total product representation enables part to part modeling by

capturing all engineering data throughout the development process,

allowing us to fully visualize accurate product moulds, as they will appear

when manufacture.

2.4 Geometric Modeling

There are number of applications of the CAD software, one of the

most popular applications being geometric modeling. First of all let us see

what is geometric modeling? The computer compatible mathematical

description of the geometric of this is called as geometric modeling. The

CAD software allows the mathematical description of the object to be

displayed as the image on the monitor of the computer.

2.4.1 Steps for Creating the Geometric Model

There are three steps in which the designer can create geometric

models by using CAD software, these are:

Creation of basis geometric objects: in the steps the designer

creates basic geometric elements by suing commands like points,

lines and circles.

Transformations of the elements: In the second step the

designer uses commands like achieve scaling, rotation and other

related transformation of the geometric elements.

Creation of the geometric model: During the final step the designer uses

various commands to that cause integration of the objects or elements of

the geometric model to form the desired shape.

During the process of geometric modeling the computer converts

various commands given from within the CAD software into mathematical

models, stores them as the files; and finally displays them as the image.

The geometric models created by the designer can open at any time for

reviewing, editing or analysis.

2.4.2. Representation of the Geometric Models

Of the various forms of representing the objects in geometric models,

the most basic is wire frames. In this form the object is displayed by

interconnected lines as shown in the figure below. There are three types

of wire frame geometric modeling, these are: 2D, 2.1/2D and 3D. They

have been described below:

2D: It is stands of two dimensional view and is useful for flat

objects.

2.1/2D: It gives views beyond the 2D view and permits viewing of

3D object

Ffthat has no sidewall details.

3D: The three dimension representation allows complete three-

dimensional viewing

Of the model with highly complex geometry. Solid modeling is the

most advanced method of geometric modeling in three dimensions.

2.5 MODULES IN CATIA

Sketch module:

Sketcher module enables us to create sections. Sketcher technique is

used in many areas of Catia. Using Sketcher mode, we can create

geometry without regard to the exact relationships between parts of

sketch or the cxact value of dimensions, when we generate the sections,

Catia makes explicit assumptions. For example if we draw nearly

horizontal line, it becomes exactly horizontal and all these assumptions

are displayed graphically.

Sketcher module

Drafting module of link pin

Drafting module of articulated rod

Drafting module of master rod

Drafting module of piston

Drafting module of piston pin

drafting module of piston ring

Drafting module of rod bush upper

Drafting module of rod bush lower

Part drawing in catia

Modelling of articulated rod

Modelling of master rod

Modelling of piston

Modelling of Master rod bearing

Modelling of link pin

2.7. Assembly module:

Few designs consist of just a single part. Most designs are

combination of Several thousands of parts as assembly drawing for

documentation is traditionally a multi-view drawing to complete design

showing each component in its relative position and identified by name.

Generally over all dimensions in the assembly drawing for more complex

designs, the assembly is divided into functional sub-assemblies, which are

identified in the assembly drawing. Individual components are then

identified at the sub-assembly level. Assembly shows all the parts both

standards and non Standard. A standard part is one, which we simply

purchase from manufacture and use as it is. A non-standard or custom

part is one we must design for the current project.

Components required

Sr no component Quantity

01 Master Rod 01

02 Articulated rod 04

03 Piston 05

04

Master rod Bearing

01

05

Rod lower bush

04

06

Rod upper bush

05

07

Piston pin

05

08

Piston ring

20

09

Link pin

10

Assembly module (Radial engine)

The assembly design workbench is used to assemble the

components using assembly constraints available in the workbench.

There are two types of assembly design approaches:

a. Bottom up

b. Top down

In the bottom-up approach of the assembly of the assembly, the

previously created components are assembled together to maintain their

design intent.

In top-down approach, components are created inside the assembly in the assembly design workbench.

Assembly of articulated rod and piston

Final Assembly

2.8. Drafting Workbench

The drafting workbench is used for the documentation of the parts

or assemblies created earlier in the form of drawing views and their

detailing. There are two types of drafting techniques.

i. Generative Drafting

ii. Interactive Drafting

The generative drafting technique is used to automatically

generate the drawing views of the parts and assemblies. The parametric

dimensions added to the components in the part design workbench during

its creation can also be generated and displayed automatically in the

drawing views. The generative drafting is Bi-directionally associative in

nature. We can also generate the Bill of Material ( BOM) and balloons in

the drawing views.

In interactive drafting, we need to create the drawing views by sketching

the using the normal sketching tools and then adding dimension.

Drafting Module

CONCLUSION

Modeling of radial engine is done by using the CATIA

software, by which the modeling time is reduced.

Very accurate design is be achieved by CATIA software.

Assembly by CATIA software is so easy.

REFERENCES

Machine Design by R.S. KHURMI and J.K. Gupta

www.wikipedia.com

www.encyclopedia

www.google.com

http://seminarprojects.com