Eigenstructure assignment in vibrating systems based on receptances

Liu, Zihao, Li, Wanyou, Ouyang, Huajiang ORCID: 0000-0003-0312-0326 and Wang, Donghua (2015) Eigenstructure assignment in vibrating systems based on receptances. ARCHIVE OF APPLIED MECHANICS, 85 (6). pp. 713-724.

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Abstract

This paper presents a method for structural modifications for achieving desired eigenstructures based on receptances, by adding multiple mass–spring systems to some locations of the primary system. This method has the benefit that not only neither analytical nor modal models are needed, but also the original mass and stiffness of the primary system are maintained. Moreover, when a complex structure or machine is designed for some special functions so that its inner structure is not allowed to be modified, it is an effective way in practice to achieve desired dynamical performance resulted from adding several external simple substructures. The theory is presented in this paper, which is suitable for linear undamped systems. Numerical experiment is set up, and the results of the modifications are compared with the method proposed by Braun and Ram. Both theoretical derivation and numerical results demonstrate the effectiveness of this method.

Item Type:	Article
Uncontrolled Keywords:	Eigenstructure assignment, Structural modification, Receptance, Mass-spring system, Undamped systems
Depositing User:	Symplectic Admin
Date Deposited:	15 Nov 2017 15:18
Last Modified:	19 Jan 2023 06:50
DOI:	10.1007/s00419-015-0983-x
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3012233