Covariance modeling method for use in compliant assembly tolerance analysis

Michael Tonks, Ken W. Chase

Research output: Contribution to conferencePaper

7 Citations (Scopus)

Abstract

In assemblies involving compliant parts, springback and residual stress are caused when geometric variation in the assembly requires the parts be deformed to allow for assembly. A method is needed to predict the deformation due to the geometric variations. Researchers in the areas of Statistical Tolerance Analysis and Stochastic Finite Element Analysis have developed methods to account for statistical variation of parameters in a finite element model. A new statistical method uses an orthogonal polynomial-based covariance model to account for surface variation of the compliant parts over a wide range of wavelengths. The method has been demonstrated to match the accuracy of Monte Carlo simulation with a single calculation, and accurately model covariance data taken from real parts.

Original languageEnglish (US)
Pages49-55
Number of pages7
StatePublished - Dec 1 2004
Event2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference - Salt Lake City, UT, United States
Duration: Sep 28 2004Oct 2 2004

Other

Other2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference
CountryUnited States
CitySalt Lake City, UT
Period9/28/0410/2/04

Fingerprint

Tolerance Analysis
Modeling Method
Stochastic Finite Element
Springback
Residual stresses
Statistical methods
Residual Stress
Polynomials
Orthogonal Polynomials
Statistical method
Finite Element Model
Statistical Analysis
Finite element method
Wavelength
Monte Carlo Simulation
Predict
Model
Range of data

All Science Journal Classification (ASJC) codes

  • Modeling and Simulation
  • Mechanical Engineering
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design

Cite this

Tonks, M., & Chase, K. W. (2004). Covariance modeling method for use in compliant assembly tolerance analysis. 49-55. Paper presented at 2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, UT, United States.
Tonks, Michael ; Chase, Ken W. / Covariance modeling method for use in compliant assembly tolerance analysis. Paper presented at 2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, UT, United States.7 p.
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Tonks, M & Chase, KW 2004, 'Covariance modeling method for use in compliant assembly tolerance analysis', Paper presented at 2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, UT, United States, 9/28/04 - 10/2/04 pp. 49-55.

Covariance modeling method for use in compliant assembly tolerance analysis. / Tonks, Michael; Chase, Ken W.

2004. 49-55 Paper presented at 2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, UT, United States.

Research output: Contribution to conferencePaper

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Tonks M, Chase KW. Covariance modeling method for use in compliant assembly tolerance analysis. 2004. Paper presented at 2004 ASME Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Salt Lake City, UT, United States.