optimising the future of personal mobility€¦ · osaka founded: 1998 by hisamitsu harada head...

Optimising the Future of Personal Mobility

Introduction

Who are HVD?

What is Personal Mobility?

What are the design considerations when designing personal mobility products?

Case Study – applying optimisation to a footboard

Final thoughts.

HVD – A Brief Summary

Tokyo

Osaka

Founded:

1998 by Hisamitsu Harada

Head Office Location:

Miyoshi city, near Toyota City (Central Japan)

Number of Employees: 84

Main customers:

Toyota / Lexus

Yamaha

Aisin Seiki

Panasonic

Company Philosophy: “Sampo-yoshi”

Beneficial to Society, to the Customer and to the Vendor.

Design Specification

Engine variation

・Gas

・Diesel

Handle

・RHD

・LHD

Audio

1DIN

2DIN

Country

・Europe

・Japan

・USA

・China

Vehicle Specification

Design, development and

prototyping of wire harness in

Japanese automobile industry

HVD’s projects 1

HVD’s projects 2

Design, development and

prototyping of interior & exterior parts

for the Japanese Automotive

Industry

Door Lock Outside handle

Design, development and

prototyping of door functional parts in

Japanese automobile industry

HVD’s projects 3

Outside handle

HVD’s projects 4

The World’s largest skateboard, developed & manufactured for

a TV programme (TBS)

Metallic AM * 1

Maraging Steel

Titanium

Inconel

Aluminium

Stainless Steel

Additive Manufacturing

EN(AS)9100

AMQ

Aerospace quality management standard

EOS, the global technology leader for industrial 3D printing, awarded the first Additive Manufacturing Quality (AMQ)

certification in Japan to HVD, a leader in direct metal 3D printing.

Certification:

Nylon AM * 2 PP AM * 2

Why HVD & GRM?

A chance encounter – working towards the future

Design &

Creativity

CAE

Technology &

Innovation

The Future of Design

What is it?

A new generation of machines

designed to change the way people

transport.

Why?

Good for the environment

Enhanced freedom for all

Benefits to society through more

efficient use of urban space

Personal Mobility

The Evolution of Personal mobility

2005 – i-unit

(developed for Aichi

Expo)

2005 – i-swing (Tokyo

Motor Show)

Some More Examples

2013 – i-ROAD(Tokyo

Motor Show)

2007 – i-REAL (Tokyo

Motor Show)

The challenges of personal mobility

Affordability

Affordability means access for people from all walks of life

Lightweight

Efficient and economic use of materials is beneficial to society

High performance

Through high performance comes high desirability.

Optimised Engineering Design

Example: footboard

The project

Develop a strong, light footplate for a personal mobility vehicle

The challenge

Reducing mass

The Solution

Optimised casting using topology

The Target

Reduce the mass as much as possible

Manufacturing considerations

3 Methods Considered

No Manufacturing Constraints

Single Casting

Two Castings

Starting Geometry

Project Start – Design Volume

Battery Space

Footplates for user to stand on

Mesh & Loading Conditions

Voxel Mesh – Quick to make & Perfect for concept topology

Foot loads applied using Genesis’ efficient contact calculations

Lateral/Twisting

Load

Standing loadcase

(110kg * 3G)

Hinge

Concept Topology Results

No Constraints

2.46kg

Single Casting

2.48kg

Twin Casting

2.48kg

Topology Interpretation

New CAD Delivered, based upon topology loadpaths, and including functional

details

Interpreted Mass:

4.49kg

Further Refinements… GRM employed RDM, topometry and sheet topology optimisation to further

improve the design and decrease the mass.

Thickness(mm)

Element Density

Further Refinements 2

Extra local abuse loadcases used to optimise the footplate, whilst maintaining

high performance

1

2

3

4

5

6

7

8

Updated Interpretation

New lightweight design delivered, meeting all performance

targets.

Mass Reduction of ~25% from initial interpretation.

Reduced Mass:

3.15kg (-1.34kg)

In summary – the future

HVD envisages a large growth in the

marketplace for alternative transportation

& personal mobility

To fully exploit this opportunity, it is

imperative to use efficient development

methods.

By collaborating with GRM, HVD can

expand its capabilities and make best use

of the latest trends in the mobility industry.

Contact Details

HVD

Hisamitsu Harada

hhrd@hvd.co.jp

GRM Japan

Adam Hargreaves

Adam.hargreaves@grm-consulting.co.jp

14Lab

Satoshi Ishiguro

bigserver14@gmail.com