[1] Zhang Jianrun, Sun Qinghong, Chen Nan,. Dynamic analysis and optimization of car’s body-in-whitebased on superelement approach [J]. Journal of Southeast University (English Edition), 2004, 20 (3): 324-327. [doi:10.3969/j.issn.1003-7985.2004.03.012]
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Dynamic analysis and optimization of car’s body-in-whitebased on superelement approach(
)
基于超单元法的轿车白车身动态分析和优化
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 20
- Issue:
- 2004 3
- Page:
- 324-327
- Research Field:
- Mechanical Engineering
- Publishing date:
- 2004-09-30
Info
- Title:
- Dynamic analysis and optimization of car’s body-in-whitebased on superelement approach
- 基于超单元法的轿车白车身动态分析和优化
- Author(s):
- Zhang Jianrun; Sun Qinghong; Chen Nan
- Department of Mechanical Engineering, Southeast University, Nanjing 210096, China
- Keywords:
- superelement approach; modeling; optimal design
- PACS:
- TH132
- DOI:
- 10.3969/j.issn.1003-7985.2004.03.012
- Abstract:
- An approach based on the superelement theory is proposed, and it is applied to model the car’s body-in-white as well as to dynamic simulation and optimization. This approach can improve the calculation speed and do the dynamic optimization among substructures respectively in the car’s body design. To meet the car’s design of harshness, a dynamic optimal design model, based on the mean square of vertical displacement response at two points of the car floor, is also proposed. Satisfactory results are achieved in this paper.
- 采用基于超单元的方法对轿车的白车身进行了建模和动态仿真设计. 该方法不仅可以提高计算速度, 同时可以对轿车车身中的各个子结构进行独立的动态优化设计. 针对轿车设计中平顺性问题, 还提出了车底板上2点垂直方向位移响应的均方值为最小的车身优化方法, 对车身结构进行动态优化设计, 获得了令人满意的优化结果.
References:
[1] Ahmadian M T, Zangeneh M Sherafati. Vibration analysis of orthotropic rectangular plates using superelements [J]. Computer Methods in Applied Mechanics and Engineering, 2002, 191: 2069-2075.
[2] Zehn M W. A combination of modal synthesis and subspace iteration for an efficient algorithm for modal analysis within a FE-code [J]. Shock and Vibration, 2003, 10(1): 27-35.
[3] Nurse A D. New superelements for singular derivative problems of arbitrary order [J].International Journal for Numerical Methods in Engineering, 2001, 50(1): 135-146.
[4] Zivkovie M, Kojie M, Slavkovic R, et al. A general beam finite element with deformable cross-section [J]. Computer Methods in Applied Mechanics and Engineering, 2001, 190: 2651-2680.
[5] Herting Davidn. MSC/NASTRAN superelement analysis[R]. New York: MacNeal-Schwendler Corporation, 1999.
[6] Lee Gresory. MSC/NASTRAN design sensitivity and optimization[R]. New York: MacNeal-Schwendler Corporation, 1999.
Memo
- Memo:
- Biographies: Zhang Jianrun(1962—), male, doctor, associate professor, zhangjr@seu.edu.cn; Sun Qinghong(1938—), male, professor, sunqinghong@seu.edu.cn.