Computer Aided Tolerancing of Composite Elevator Assembly Involving Clamping Forces Coordination

Abstract Clamping forces are applied to the composite elevator due to the stochastic deviations, and in turn affect the stackup of deviations. The paper presents a computer aided tolerancing of composite elevator assembly involving clamping forces coordination. Based on the verified FEA model, the clamping force modified probability distribution is obtained. The tolerance simulation is conducted with the modified distribution. Principal component analysis is employed to extract the main deformation mode of the composite elevator from the tolerance simulation results. The clamping forces are coordinated based on the extracted deformation mode to accomplish the specifications of the joints.

[1]  Daniel E. Whitney,et al.  The Datum Flow Chain: A systematic approach to assembly design and modeling , 1998 .

[2]  Christian Hühne,et al.  Process distortions in prepreg manufacturing – An experimental study on CFRP L-profiles , 2013 .

[3]  Wilma Polini,et al.  Assembly design in aeronautic field: From assembly jigs to tolerance analysis , 2017 .

[4]  Mozafar Saadat.  Challenges in the Assembly of Large Aerospace Components , 2011 .

[5]  Hua Wang,et al.  Investigation on the Effect of Spring-In Distortion on Strength of a Bimaterial Beam , 2016 .

[6]  Rikard Söderberg,et al.  The influence of spot weld position variation on geometrical quality , 2012 .

[7]  Martin Bohn,et al.  Dimensional Stability and Variance of Carbon Fiber Reinforced Plastics – Current State and Necessary Future Developments☆ , 2013 .

[8]  Hua Wang,et al.  Tolerance simulation of composite wingbox assembly considering preloading-modified distribution , 2016 .

[9]  Shreyes N. Melkote,et al.  Analysis of the effects of fixture clamping sequence on part location errors , 2004 .

[10]  Hua Wang,et al.  Identifying sources of variation in horizontal stabilizer assembly using finite element analysis and principal component analysis , 2013 .

[11]  Hua Wang,et al.  Identifying Sources of Variation in Horizontal Stabilizer Assembly Induced by Rib Using Finite-Element Analysis and Full Factorial Design Method , 2014 .

[12]  Hua Wang.  Riveting Sequence Study of Horizontal Stabilizer Assembly Using Finite-Element Analysis and Riveting Equivalent Unit , 2014 .

[13]  Michael Yu Wang,et al.  Fixture performance improvement by an accelerated integral method of fixture layout and clamping force plan , 2013 .

[14]  Thomas Pardoen,et al.  Tooling geometry optimization for compensation of cure-induced distortions of a curved carbon/epoxy C-spar , 2014 .

[15]  Hua Wang.  Deformation Analysis in Horizontal Stabilizer Assembly Using FEA Modeling and Multilevel Analysis , 2015 .

[16]  Wilma Polini,et al.  Tolerance Analysis of Free-Form Surfaces in Composite Material , 2007, J. Comput. Inf. Sci. Eng..