Senior Design Fixture Analysis
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Transcript of Senior Design Fixture Analysis
Senior Design Fixture AnalysisME 450: Finite Element AnalysisDr. K NemaFinal ProjectJavier AnguloMatt SchonauerAvery Sheets
Overview Introduction Background Model Details Analysis and Results Conclusions
Introduction Analysis will be done on a fixture designed
for ME 462: Capstone Design Project sponsor is Remy, Inc
Out of Anderson, IN The analysis will be purely structural
Von Mises stresses Deflection/Deformation
Background Remy designs and manufactures starters
Background Most analysis of products is done using FEA Testing is usually a “break it” test Tests aren’t universal and standardized No reliable way to compare current products
to competitor products
Background Force transmission path through individual
components
Background The particular fixture being tested will be used to
connect the drive shaft to the torsion machine The pin end will be held by the fixture
Model Details
Model Details
Model Details
Analysis and Results Attempt #1 This method would not
provide any moment at all
There is no implementation in Workbench to apply a pressure on part of a surface
Analysis and Results Attempt #2
Analysis and Results Attempt #3 An okay
approximation, but not quite accurate
Placement of point forces based solely on clicking the mouse
This discrepancy caused forces to be unbalanced
Analysis and Results Results from the last
analysis indicated that the point of high stress was indeed the base of the triangular part
Rounds were added at the intersection of the circular base and the triangular chuck
Analysis and Results Surfaces can be split
into multiple surfaces in Pro Engineer
The force of the torsion machine exerted on the triangular chuck could be better modeled
Analysis and Results Pro Engineer problems
Deleted features still stored in the database Had to create a completely new part
Analysis and Results Maximum torque that can be applied is 1130 Nm
Analysis and Results Maximum von Mises stress is 48.51 MPa Maximum deflection is 0.004 mm (negligible)
Conclusions Design was approved through FEA using a
combination of Pro E and ANSYS Workbench
Good example of the importance of learning the theory behind FEA