The Stochastic Imperfection Method of Sheet Space Structure Based on Truncated Univariate Normal Distributions

Tian Jiao Jin; Xiao Ming Guo

doi:10.4028/www.scientific.net/AMR.937.707

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The Stochastic Imperfection Method of Sheet Space Structure Based on Truncated Univariate Normal Distributions
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 937The Stochastic Imperfection Method of Sheet Space...

The Stochastic Imperfection Method of Sheet Space Structure Based on Truncated Univariate Normal Distributions

Abstract:

The initial geometric imperfections is a key issue of the stability analysis of sheet space structures. A new described method of the initial geometric imperfections which is located in local spherical coordinate system is given, and the random imperfection variable is assumed to follow a truncated univariate normal distribution (TUVN). A well working envelope function for TUVN is chosen, and the acceptance rate is high for constrained region of the design code. The method provided in the paper is called spherical truncated normal stochastic imperfection method (STNS). The results of consistent mode imperfections method, traditional stochastic imperfection method and STNS method are compared, by which some conclusions that are useful for the design and the study of sheet space structures are obtained.

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Periodical:

Advanced Materials Research (Volume 937)

Pages:

707-711

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.937.707

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Online since:

May 2014

Authors:

Tian Jiao Jin*, Xiao Ming Guo

Keywords:

Local Spherical Coordinate System, Sensitivity Imperfection, Sheet Space Structures, Stochastic Imperfection Method, Truncated Univariate Normal Distributions

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References

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DOI: 10.1080/15598608.2014.996690

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