Session 2011/2012 2

SMC4523AUTOMOTIVE ENGINEERING DESIGN

Detail Design Analysis

Assoc. Prof. Dr. Kamarul Baharin TawiDr. Nurulakmar Abu Husain

Ref: Maher, M. L. (1990) Process Models for Design Synthesis, AI Magazine Vol. 11 No. 4 pp. 49-58

Do you want to know if your new design is strong enough?

Will it break? Will it deform? Will it get too hot?

Are you concerned about vibration or fatigue?

Do you need to understand the flow of gas or liquid?

Do you need to conduct an FMEA in order to meet your customer's requirement, or to predict failure modes and what might be done about them?

What about optimising your design to save material cost, but still meet stress & stiffness targets?

Failure Modes and Effects Analysis

If the answer to any of these is yes ANALYSIS!!!!!

Failure Modes & Effects Analysis

a procedure in product development and operations management for analysis of potential failure modes

Failure modes 

any errors or defects in a process, design, or item, especially those that affect the intended function of the product and or process, and can be potential or actual. 

Effects analysis

study the consequences of those failures.

can minimize or even eliminate the need for physical prototyping and

testing

Can be applied to just about anything

DESIGNANALYSIS!!!!!

Analyzing machine designsInjection molded plastics

Cooling systemsProducts that emit electromagnetic fields

Systems that are influenced by fluid dynamics…

In the field of mechanical engineering.... can solve a wide range of product development problems

.. predict the physical behavior of just about any part or assembly under any loading conditions

a simple beam under a bending loadcar crash simulations

vibration analysis of aircraft

DESIGN ANALYSIS

(SMC4523)

FUNCTIONAL

STRENGTH

RELIABILITY

SAFETY

COST

Others…

Mechanical Design Analysis??

MECHANICAL DESIGN

ANALYSIS

Load and Stress

Materials

Deflection and

Stiffness

Static, Dynamic Loadings

…

ANALYTICALEXPERIMENTAL

FINITE ELEMENT ANALYSIS (FEA)

STATICSDYNAMICSSTRENGTHMATERIALS

…

Mechanical Elements??

Mechanical Elements

Screws, Fasteners, Temporary

Joints Welding, Bonding,

Permanent Joints

Springs

Bearings

Gears

Clutches, Brakes,

Couplings, Flywheels

Flexible Elements

(Belts, Chain, etc.)

Shafts, Axles

SME 3523

COMPONENT DESIGN!!!