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Eigenstructure assignment in vibrating systems based on receptances

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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.

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Authors and Affiliations

  1. College of Power and Energy Engineering, Harbin Engineering University, Harbin, 150001, People’s Republic of China

    Zihao Liu, Wanyou Li & Donghua Wang

  2. School of Engineering, University of Liverpool, Liverpool, UK

    Huajiang Ouyang

  3. State Key Laboratory of Structural Analysis of Industrial Equipment, Dalian University of Technology, Dalian, 16023, People’s Republic of China

    Huajiang Ouyang

Authors
  1. Zihao Liu
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  2. Wanyou Li
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  3. Huajiang Ouyang
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  4. Donghua Wang
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Correspondence to Wanyou Li.

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Liu, Z., Li, W., Ouyang, H. et al. Eigenstructure assignment in vibrating systems based on receptances. Arch Appl Mech 85, 713–724 (2015). https://doi.org/10.1007/s00419-015-0983-x

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  • DOI: https://doi.org/10.1007/s00419-015-0983-x

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