A physics-based fast algorithm for structural responses of generalized rotationally axisymmetric structures: the generalized rotation-superposition method

Mao Yang; Jun Zhang; Hao Chen; Jialin Yang; Yongjian Mao

A physics-based fast algorithm for structural responses of generalized rotationally axisymmetric structures: the generalized rotation-superposition method

Authors

Mao Yang Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China. https://orcid.org/0009-0005-7737-6684
Jun Zhang Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China. https://orcid.org/0009-0007-8520-7367
Hao Chen Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China. https://orcid.org/0009-0001-9540-8265
Jialin Yang Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China. https://orcid.org/0009-0001-1391-9177
Yongjian Mao Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China. https://orcid.org/0009-0009-9135-6670

Abstract

Fast calculations are widely required in the traditional applications and the emerging digital twin fields. For those considerations, a novel physics-based fast algorithm, namely generalized rotation-superposition method, is proposed for fast calculating linear elastic responses of generalized rotationally axisymmetric structures under arbitrary mechanical loads. This improved method breaks through the limitations of the previous basic rotation-superposition method in rotational similarity of load and structural axisymmetry, and greatly expands its application scope. In this paper, firstly, the basic theory of the rotation-superposition algorithm is introduced; secondly, the theoretical model of the generalized rotation-superposition method is established; thirdly, the effectiveness and accuracy are verified by using finite element simulations; finally, through a complex case study, the applicability of the generalized rotation-superposition method for complex engineering problems and its advantages in efficiently obtaining massive amounts of data are further illustrated.

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Published

2024-04-26

Issue

Vol. 21 No. 6 (2024)

Section

Articles

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