Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

DC:19. COMPUTER AIDED ENGINEERING (CAE)

 

· One of the fundamental features of Engineering is to make trade-offs to get optimal designs

 

· If we overdesign, then all designs become simple, but more expensive, and more difficult to manufacture

 

· If we underdesign, then our design will not fulfill our requirements

 

· Therefore we use knowledge and tools to achieve designs which are `just right'.

 

· There are many physical factors which can affect the quality of a design,

 

  1. - Yield stress failure
  2. - Excessive deformation
  3. - Insufficient heat transfer
  4. - Kinematic interference
  5. - Too much/little air drag
  6. - Resonance at wrong frequency
  7. - Electromagnetic interference effects
  8. - Non uniform cooling effects (eg. warping in plastic parts)
  9. - etc.

 

 

DC:19.1 FINITE ELEMENT ANALYSIS (FEA)

DC:19.2 ASSEMBLY AND KINEMATICS

DC:19.3 ASSEMBLIES

DC:19.4 OPTIMIZATION