An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus

Muhamm adAdnan; SUN Bing; ZHANG Jian-wei; Sarosh Ali

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An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus

火箭发动机 | 更新时间：2026-07-07

- An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus
- An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus
- 航空动力学报 2013年28卷第2期
- 作者机构：
  
  School of Astronautics, Beijing University of Aeronautics and Astronautics,Beijing,China,100191
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- 纸质出版：2013
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Muhamm adAdnan, SUN Bing, ZHANG Jian-wei, 等. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 航空动力学报, 2013,28(2).

Muhammad Adnan, SUN Bing, ZHANG Jian-wei, et al. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 2013, 28(2).
Muhamm adAdnan, SUN Bing, ZHANG Jian-wei, 等. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 航空动力学报, 2013,28(2). DOI：

Muhammad Adnan, SUN Bing, ZHANG Jian-wei, et al. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 2013, 28(2). DOI：

摘要

The modulus of viscoelastic materials varies with excitation frequency.However

during modal analysis of frequency dependent materials

a material evaluation frequency is necessary because stiffness cannot be modified during eigenfrequency procedure.As a result

only those vibration modes are accurate

of which eigenfrequency is close to the material evaluation frequency.In order to obtain vibration modes of solid rocket motor (SRM) using material modulus based on frequency which is the same as the eigenfrequency

an iterative approach was proposed.Results of the iterative technique show that frequency modes obtained from the method are in complete agreement with the eigenfrequency and material evaluation frequency.

Abstract

The modulus of viscoelastic materials varies with excitation frequency.However

during modal analysis of frequency dependent materials

a material evaluation frequency is necessary because stiffness cannot be modified during eigenfrequency procedure.As a result

only those vibration modes are accurate

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