BigLHArrow S E R V I C E S BigRHArrow

 

ENGINEERING DESIGN SERVICES

  Engineering Design Services Overview SmallArrowRH

 

     ENGINEERING MATERIALS & MANUFACTURING:  

 SmallArrowRH Castings

 SmallArrowRH Extrusions

 SmallArrowRH CNC Parts

 SmallArrowRH Plastics & Injection Moulding

 SmallArrowRH Elastomers

 SmallArrowRH Sheet Metal & Fabrication

 

     ENGINEERING COMPONENTS:

 SmallArrowRH Gears & Springs

 SmallArrowRH Hydraulics & Pneumatics

 SmallArrowRH Jigs & Fixtures

 

     ENGINEERING ANALYSIS:

 SmallArrowRH Tolerance Analysis

 SmallArrowRH Mechanims

 SmallArrowRH Kinematics

 

     ENGINEERING SYSTEMATIC DESIGN:

 SmallArrowRH ElectroMechanical

 SmallArrowRH Machine Design

 SmallArrowRH Precision Engineering

 

 

BigRHArrowBigRHArrowComputer Aided Engineering (CAE)  BigRHArrowFEA Case Study: Design Analysis Part Alterations

FEACaseStudyAlterations

SmallLHArrow Design anlaysis - nearly 100% of the time, parts need to be modified for a FEA analysis SmallRHArrow

We have dealt with how we are going to perfrom the analysis, the model now needs to be prepared for a geometry based analysis. Creating geometry ready for anlaysis can be very complex due to the number of changes that may be required. Meshing algorithms do not like poor topology (CAD description of the geometry). Hence all 'dubious' modelling (which is usually OK for tooling etc.) is removed and the part simplfied. Simplfying geometry and topology means removing fillets (blends), perhaps chamfers etc. Great care has to be taken since geometry modifications can significalty effect the FEA results, hence the significance of each alteration has to be well understood. The wheel (as shown above) ended up have fillets removed from where the spokes join the rim and each of the different colours shown highlight unique volumes - it is now a multi-volume part. This was done to cater for different materials and simplyfing the 'work' the meshing algorithm has to perfrom to produce a quality mesh without stretch or distortion - the stress analysists enemy! Mesh quality is paramount.