Sean Dalton

www.itsligo.ie/staff/sdalton Dalton.sean@itsligo.ie

Emphasis at Level 8 Level 7: Design and Build

Level 8: Design and Analysis

Subjects The course is made up of the following subjects: Mechanics / Dynamics Engineering Design, (Analysis & Simulation) Engineering Materials Thermodynamics Fluid Mechanics Mathematics Control Engineering and Sustainability Operations Management Final Year Project

Subject Lecturers

Mechanics S1 (Sean Dalton) Dynamics S2 (Molua Donohoe) Engineering Design (Conall Doran/B. Flaherty) Engineering Materials S1 (G. McGrahaghan) Thermodynamics S1 (Gerard McGranaghan) Fluid Mechanics S2 (John Casserly) Mathematics YL (K Hughes/M. Donohoe) Energy Mgmt. and Sus (Tom O Callaghan) Operations Mgmt. S2 (Donal Lyons)

Subjects Credits Marks Breakdown

Subjects Credits Marks Breakdown

Timetable / Lab Rota

Timetable / Lab Rota

Refer on-line timetable for latest version

Shortcut to timetable on www.itsligo.ie/staff/sdalton

Timetable / Labs Rota

Two subject have a lab rota; Mechanics/simulation Lab (usually E1019) Materials Lab (usually E1016) Because of the current corona-virus situation

alternate arrangement will need to be made. These will be communicated by the relevant lecturer.

For now I will deliver a regular on line class. I will switch over to lab mode in a few weeks.

Labs / Practicals

The practical aspects will be addressed in Materials Labs (Semester 1) Mechanics Simulation assignments (Semester 1) Dynamics Simulation assignments (Semester 2) Emphasis in Mechanics/Dynamics labs will be on using

computer simulation tools i.e. Finite Element Analysis and Mechanism/Motion simulation.

Timetable / Labs Rota Alternate representation of lab rota Change due to coronavirus. Alternate arrangements as per lecturers instruction

Calendar 2020-2021

Refer to college website for official version

Degree Award Levels

Degree classification First Class Honours (1.1) 70%+ Second Class Honours, Grade 1 (2.1) 60%+ Second Class Honours, Grade 2 (2.2) 50%+ Pass 40%+

Final Year Project The Final Year Project is the most important part of the

course as it demonstrates your ability to apply the knowledge and skills gained over the duration of your studies; to work independently and in a methodical manner, in the delivery of a substantial technical project.

Initial Handout 2021 Important stages in this activity will include:

- Project selection - Interim presentation - Planning structure of thesis (title / chapter headings) - Submit unbound to ensure layout/formatting are OK - Have thesis proof read to catch errors. - Submission of final bound thesis - Final presentation / Expo

Final Year Project Continued… Year long / Individual project /10 credits Desirable for a project to have a practical aspect e.g.

physical testing or measurement. Projects may come from one of the following:

- List of projects presented by staff. - Ideas drawn from your own experience/interests. - Industrially based project.

It is essential that all projects contain a strong analytical / technical content.

It is essential that the engineering analysis carried out contains a level of mathematical treatment appropriate to a Bachelor of Engineering Honours degree in Mechanical Engineering.

Project Selection Selection process.

- Project list to be posted on web (Dates as per HO) - Meet to discuss project ideas with staff (as per HO) - Submit Project preferences (Dates as per HO) - Project / Supervisor allocation (Dates as per HO)

Project hand-out and project proposal form circulated Thesis writing guidelines to be circulated later Notes on referencing and plagiarism to be circulated Technical report writing

www.itsligo.ie/staff/sdalton

Project

In the meantime give some thought to project ideas of your own.

Workshop slot in second semester

Overview of Facilities Available

Facilities - Engineering Science Laboratory - Materials Laboratory - Hydraulics Laboratory - Engineering Workshops

Equipment - Tensile testing, Fatigue & Impact testing m/c - Mechanisms, Gears, Belts and clutches. - Microscope for analysis of material structure - Faro Arm / Micro-scribe measuring devices. - Co-ordinate Measuring Machine (CMM) - Reverse Engineering; laser scanner - Rapid prototyping machine.

Materials Testing Equipment

Equipment (reading clockwise) •Houndsfield tensile test m/c •Instron Fatigue test m/c •Microscope for mtls analisys •Strain gauge apparatus •Zwick Impact tester

Mechanics / Dynamics Equipment Equipment (reading clockwise) Assorted mechanisms Belt friction apparatus, Clutch apparatus, Acceleration of gear

Reverse Engineering

Reverse Engineering tools •Micro-scribe measuring arm •Laser scanner

Data logger

Labquest data logger can measure: •Temperature, •Acceleration, etc

Rapid Prototyping Rapid prototyping enables your

CAD model to be converted directly into a physical model.

Software Available

Computer Aided Design: Solid Works, Powershape Computer Aided Manufacture: Mastercam, Powermill Mechanism Analysis: Working Model 2d, SW-Motion. Finite Element Analysis Software: SW-Simul…, Ansys Thermal analysis: SW-Simulation, Ansys Computational fluid dynamics: SW-Floworks Data acquisition and instrument control: Labview Mathematical Modelling: Matlab, Simulink

Computer Aided Design

Examples of Computer Aided Design

Mechanics-Finite Element Analysis Finite element analysis enables the designer to

analyse the stresses in a component. When a force is applied to a component stresses are induced. Finite element analysis enables the stresses to be determined. Blue represent low stress and Red represents high stress.

Mechanics-Finite Element Analysis Optimisation using Finite element analysis

Dynamics-Mechanism Simulation 2d Mechanism Simulation enables the

user to evaluate the forces generated in a Mechanism using a simplified representation of the Mechanism.

Dynamics-Scotch Yoke Slider Crank 3d Mechanism simulation using Cosmos Motion

Dynamics - Mechanism Simulation Velocity and acceleration diagrams Mechanism Simulation

Dynamics - Vibrations Free vibrations Damped vibrations

Thermodynamics Thermal analysis

Fluid Mechanics - CFD Computational Fluid dynamics

Use of computer simulation

Computer simulation should never be taken at face value.

All analysis must be supported by manual calculation, or experimental work or both.

Sample project areas

Mechanism Analysis / Simulation - Stira folding attic stairs, McHale baler mechanism - Analysis of engine dynamics, Suspension simulation - Simulation of a door closing mechanism - Design / analysis of a can crusher.

Mechanics / Dynamics - Application of and reading of strain gauge data - Design/application of an accelerometer - Monitoring vehicle dynamics using an accelerometer

Software development - Customising CAD for the design of std components. - Automating CNC code generation for SW Hole tables - CNC simulation using Solid Works and VBA

Sample project areas Thermodynamics / Fluid Mechanics

- Cooling fin optimisation - Analysis of flow through a venturi - Analysis of flow over an aerofoil section - Wind tunnel testing / Lift and drag measurement

Renewable energy - Evaluation of heat pump applications

Design - Design of an Automatic guitar tuner - Design of an automatic wine bottle opener

Metrology / CAD/CAM - Geometric measurement using Microscribe - Reverse engineering - Analysis of cutting forces

Subject Lecturers

Mechanics (Sean Dalton) Dynamics (Molua Donohoe) Engineering Design (Conall Doran) Engineering Materials (David Tormey) Materials labs (Molua Donohoe) Thermodynamics (Gerard McGranaghan) Fluid Mechanics (John Casserly) Mathematics (Leo Creedon) Ctrl Eng. and Sustainability (Tom O Callaghan) Operations Management (Louise O Gorman)

Mechanics (S Dalton)

Slope and deflection of beams Thick cylinders Elastic plastic behaviour Complex strain Fatigue Failure Strain Energy Matrix solutions Finite element analysis (Simulation Labs)