Design Process by DS Designs

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DESIGN PROCESS INVOLVED IN

DESIGNING CARS

Journey of an Concept Vehicle from Drawing Boards ToReality.


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What Design Actually Is ?

Design is a process of converting information

that characterize the needs and requirement for

a product.

Successful Design relies on closer co-operationbetween design, engineering, manufacturing and

planning than ever before.


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Design is

-an art, not science

>Problem solving, decision,

Applying science.-Creativity & Imagination

v/s Heuristic search.

-Directing, leading &

Organizing.

>Dealing with people andteambuilding.

>Negotiating to achieve satisfactory

solution & optimizing.

>Foresight towards production, assembly, testing

and other processes.

>Considering the Bottom Line of Costs and Profits.

>Satisfying the needs and satisfying the customers.

>Ethical and Professional Conduct.


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DESIGN PROCESS

>System, Subsystem and Component Design

>Sequential and Iterative Process.

>Starts and Ends with the customer.

>Comparison and contrast to scientific methodwhich include :

1.Need 2.Concepts 3.Feasibility

4.Produce 5.Sell

6.Time and Cost are Key Factors.

>Process of converting information ThatCharacterizes the needs and requirement

Product into knowledge about the product

and its implied processes.


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Design Process Overview

SOURCES

COMPANY CONSUMER

SITUATION ANALYSIS

PROCEDURE FOR SEARCH

DEFINING OF PRODUCT

QUALITATIVE DESCRIPTION

DESIGN


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DESIGN PROCESS OVERVIEW

MARKET RESEARCH

>Target Customer>R&D to create ideas that are

relevant to organizations

capability.>Technology push.


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Transportation Design

DESIGNING

MOOD BOARD

INITIAL SKETCHES HAND RENDERING 2D Drawings in CAD

3D MODELLING DIGITAL RENDERING CLAY MODEL

STATIC PROTOTYPE WORKING PROTOTYPE FINAL PRODUCT


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MOOD BOARD

Mood Board is the stepping stone in the design

process. After the market research we make

particular mood board in order to accentuate our

ideations which helps us to create Initial

Sketches.


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INITIAL SKETCHES

Initial Sketches are Backbone of Every design.Based on these sketches; final design of the

vehicle comes into execution.


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HAND RENDERING

Hand rendering deals with color scheme of the

car whether it is interior or exterior.

Generally we use alcohol markers for quick hand

rendering but in actual every designer has its

own preferences and techniques. Here are some

hand renderings done with pencil colors and

alcohol markers for your reference.

EXTERIOR

RENDERING.


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Interior Hand Renderings


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2D DRAWINGS IN CAD

Generally we Refine the sketches in 2D CAD soft wares.

This helps us to understand the fundamental perspective an

basic dimensions of the vehicle.

Software's used in 2D Refining

>AUTOCAD >3ds MAX >AUTODESK ALIAS

>SOLIDWORKS >AUTODESK INVENTOR >RHINOCEROS


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3D MODELLING

3D Model of an sketch can be made using CAD

Software's: Alias ,Solid works ,Catia, ProE.

These are Class B surfacing Software's. For

class A Surfacing i.e. for higher precision 3D

models we use Think3, Autodesk Alias and 3Ds

Max.


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DIGITAL RENDERING

Digital rendering refers to the color scheme

chosen for the 3d model which is rendered

according to the lighting conditions (i.e. light

falling from a particular source) and is taken

into consideration.

SOFTWARES USED FOR RENDERING:>Photoshop >Blender

>Autodesk Alias >3Ds Max


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Picture References ForDigital Rendering.


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CLAY MODELING

when the execution of 3D model and rendering has

been accomplished then we prepare scale model of

the ratio 4:1 then 1:1 which is the actual

replica of the prototype. Clay modeling is

dependent on the core expertise of the clay

modeler and hence its an essential step in the

Hierarchy of the Design Process.

4:1 CLAY MODEL


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1:1 INTERIOR CLAY MODEL

1:1 EXTERIOR CLAY MODEL


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STATIC PROTOTYPE

Static Prototype is very much similar to the

Working Prototype except it does not have a

drive train in order to propel it. Static

prototype is only used for design study and to

get an clear idea of manufacturing processes

used to manufacture the same.


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WORKING PROTOTYPEWorking Prototype is the sibling of the

production model.It has drive train too and all the mechanical

design aesthetics, interior layout and overall

look of the car is reviewed using working

prototype. The prototype is tested till all theproblems has been rectified to the fullest

satisfaction of the companys standard.


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FINAL PRODUCT

It usually takes 3-5 years for a company to

bring a concept into actual production. After

rigorous design exercise to testing of the

prototype it requires quality manpower to get

engrossed in tons of hard work along with money.


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General Design

Considerations

>Exterior

>Interior

>Safety

EXTERIORExterior of the car should be able to communicate with

people. Design should be expressive and should never be

conservative at any front.

>Designer should know the design language or the designheritage of a particular company.

For e.g. Buick car company has its own theme for

designing cars. They use bold lines at the front

and smooth splined surface at the side and rearas their Design language.


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Interior

1.Occupant Packaging It depends upon workspace

anthropometry which includes:

-Conventional Static Measurements: These

measurements are performed on human body in

rigid and standardized position.

-Functional Task Oriented Measurements: These

measurements are taken with human body at work

,in motion or in workspace attitude.


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2. VISUAL ASPECTS:

The Cars interior should visually attract the

customers and the ambience of the cabin should

be imposing and on the other hand it should beergonomically well sorted and should feel

elegant too.

3.Seat Design: The seats of the vehicle shouldbe well contoured in order to provide max

comfort to the driver and the passengers.


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4.DESIGN AND SYMBOL FOR AUTOMOBILE CONTROL AND

DISPLAY:

The display of the Gauges should be easy to

read. The controls of the vehicle should be

nimble enough to handle hours of reckless

driving. The buttons used for SAT NAV and media

interface should be ergonomically placed.

SAFETYSafety of the vehicle should be taken into primeconsideration. Safe design is referred to those

designs which compromise their body shells at

the time of impact instead of injuring

passengers.


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Design Tips For Achieving Optimum safety

in designing a car:

1.Use energy absorbing materials in collapsible

crash structures.

2.For lightweight vehicles use a stressed over

lightweight core material.3.Triangulate the driver Safety Cell to

prevent collapse.

4.Use clear windscreen or bodywork for optimum

vision.

5.Keep the fuel source away from the occupantsas well as batteries in hybrid cars which

would result in increased safety standards.

6.Never compromise on safety always use top

quality materials.


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ON THE WHOLE:1.Design specification should be taken into considerations.

2.Selecting product ideas.3.Acquire and apply technical knowledge.

4.Priortize Design Goals and continue to refine.

5.Preliminary requirement list.

6.Cost Target and budget.

7.Design Embodiedment:-It starts from the concept and

develops the definite layout of the project.

-Evaluate against technical economic criteria.

-Preliminary layout

-Checking for errors and disturbing elements.

CHECKLIST FOR DESIGN EMBODIEDMENT INCLUDES:

>Function >Working principle >Layout

>Safety >Ergonomics >Production

>Assembly >Transport >Recycling

>Maintenance >cost >Quality Control


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8.Prepare production document:

-Elaborate Detailed drawings and parts.

-Complete production, assembly, transport and

operating instructions.

-Checking all Documents.

9.Design Review:

-Review and redesign focuses on achieving the

performance, predictability, reliability, andcost objectives.

-Competitive benchmarking.

-Reverse Engineering of competitors products.

EMBODIED DESIGN IS CHARACTERIZED BY REPESTED

DELIBERATION AND VERIFICATION. THIS REQUIRES

APPROACH THAT IS PROGRESSIVE AS WELL AS

ITERATIVE


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THANK YOU

Date post:	03-Apr-2018
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