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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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文章导航 > 航空动力学报  > 2013 >  28(2): 452-458
Muhamm adAdnan, SUN Bing, ZHANG Jian-wei, Sarosh Ali. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 航空动力学报, 2013, 28(2): 452-458.
引用本文: Muhamm adAdnan, SUN Bing, ZHANG Jian-wei, Sarosh Ali. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. 航空动力学报, 2013, 28(2): 452-458.
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Muhammad Adnan, SUN Bing, ZHANG Jian-wei, Sarosh Ali. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. Journal of Aerospace Power, 2013, 28(2): 452-458.
Citation: Muhammad Adnan, SUN Bing, ZHANG Jian-wei, Sarosh Ali. An iterative approach for modal analysis of solid rocket motor incorporating frequency dependent modulus[J]. Journal of Aerospace Power, 2013, 28(2): 452-458.
shu

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

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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

  • School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

    摘要
  • 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,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.

     

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    • 参考文献(15)
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    [2] Wadleigh K H.Longitudinal dynamics analysis of combined rocket vehicle/pay load structures[R].Boston:AIAA Symposium on Structural Dynamics and Aero Elasticity,1965.
    [3] Besson J M.An example of shock and vibration design for a multi-tubular propellant grain[R].Cleveland:AIAA 18th Joint Propulsion Conference,1982.
    [4] Brillhart R,Hunt D L,Jensen B M,et al.Modal survey of the space shuttle solid rocket motor using multiple input methods[R].Huntsville:The 58th Shock and Vibration Symposium,N88136171,1987.
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    [6] HUANG Weiyu,HUANG Haide.Viscoelastic dynamic analysis of solid rocket motor[J].Journal of Vibration and Shock,1993(1):33-37.(in Chinese)
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    [8] REN Ping,LIU Yongqiong,SHI Hongbin,et al.FEM modeling of solid rocket motor with propellant in modal analysis[J].Journal of Astronautics,2003,24(5):538-542.(in Chinese)
    [9] Kohsetsu Y.A simplified vibration model of solid-rocket motor coupled with solid propellant[J].Journal of Spacecraft and Rockets,2005,42(5):936-942.
    [10] LI Enqi,LEI Yongjun,YUAN Duancai,et al.Dynamic analysis on X-type solid rocket motor grain[J].Journal of Solid Rocket Technology,2007,30(6):486-493.(in Chinese)
    [11] ZHAO Yucheng,YANG Xuan,ZHANG Yahong,et al.Modal analysis of solid rocket motors by means of a reduced method[J].Journal of Solid Rocket Technology,2004,27(2):98-100.(in Chinese)
    [12] Park S W.Analytical modeling of viscoelastic dampers for structural and vibration control[J].International Journal of Solids and Structures,2001,38(44/45):8065-8092.
    [13] Palfalvi A. Modelling and measuring of viscoelastic material behaviour under cyclic loads[R].Budapest,Hungary:Budapest University of Technology and Economics,2010.
    [14] Haddad Y M.Viscoelasticity of engineering materials[M].London:Chapman & Hall,Boundary Row,1995.
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出版历程
  • 收稿日期:  2012-01-14
  • 刊出日期:  2013-02-28

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