Part I of this paper (Zhang and Shi, 2015, “Stream of Variation Modeling and Analysis for Compliant Composite Part Assembly—Part I: Single-Station Processes,” ASME J. Manuf. Sci. Eng.,) has studied the variation modeling and analysis of compliant composite part assembly in a single-station process. In practice, multiple assembly stations are involved in assembling the final product. This paper aims to develop a variation propagation model for stream of variation analysis in a multistation assembly process for composite parts. This model takes into account major variation factors, including part manufacturing error (PME), fixture position error (FPE), and relocation-induced error (RIE). With the help of a finite element method (FEM), a state space model (SSM) is established to represent the relationships between the sources of variation and the final assembly variation. The developed methodology is illustrated by using a case study of three composite laminated plates assembled in a two-station assembly system. The validity of the developed SSM is verified by Monte Carlo simulation (MCS), which is implemented on the basis of FEM. The SSM provides a potential application for diagnosis of variation sources and variation reduction.
Stream of Variation Modeling and Analysis for Compliant Composite Part Assembly— Part II: Multistation Processes
Manuscript received March 24, 2016; final manuscript received March 25, 2016; published online July 19, 2016. Editor: Y. Lawrence Yao.
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Zhang, T., and Shi, J. (July 19, 2016). "Stream of Variation Modeling and Analysis for Compliant Composite Part Assembly— Part II: Multistation Processes." ASME. J. Manuf. Sci. Eng. December 2016; 138(12): 121004. https://doi.org/10.1115/1.4033282
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