Multidisciplinary design optimization of lightweight carbody for fatigue assessment

被引：28

作者：

Miao, B. R. ^{[1
]}

Luo, Y. X. ^{[1
]}

Peng, Q. M. ^{[1
]}

Qiu, Y. Z. ^{[1
]}

Chen, H. ^{[1
]}

Yang, Z. K. ^{[1
]}

机构：

[1] Southwest Jiaotong Univ, State Key Lab Tract Power, Chengdu 610031, Peoples R China

来源：

MATERIALS & DESIGN | 2020年 / 194卷

基金：

中国国家自然科学基金;

关键词：

Multidisciplinary design optimization; Multi-body dynamics; Finite element method; Multi-objective optimization; Fatigue life; CAR BODY; VIBRATION REDUCTION; TIME;

D O I：

10.1016/j.matdes.2020.108910

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A multidisciplinary design optimization method of a lightweight car body for fatigue life prediction is presented in an attempt to minimize the coupling vibration interactions at different structural frequencies. A mathematical model is developed to simulate such coupling vibration interactions based on the theory of finite elements. The finite element model is integrated with a rigid-flexible coupled multibody dynamics model which was used to obtain load time histories. The obtained results demonstrate the effectiveness of the proposed approach in simultaneously attenuating the structural coupled vibration and improving the durability at several structural frequencies. The field structure dynamics stress verification is carried out and vehicle vibration characteristics are obtained under different operated vehicle speed. The measured dynamic stress is found to be in good agreement with the predictions of the mathematical model. Finally, the fatigue life prediction results of the weight-reduced car body structure before and after multidisciplinary optimization are compared and analyzed. The results also illustrate the multidisciplinary design optimization method can be applied in the durability design of railway vehicle critical structure components when subjected to complex loading environment. (C) 2020 The Authors. Published by Elsevier Ltd.

引用

页数：11

共 37 条

[1] Analytical and computational aspects of collaborative optimization for multidisciplinary design [J].

Alexandrov, NM ;

Lewis, RM .

AIAA JOURNAL, 2002, 40 (02) :301-309

[2]

[Anonymous], 2013, AM J FLUID DYNAMICS, DOI DOI 10.5923/J.AJFD.20130304.04

[3]

Arnold M., 2007, MULTIBODY DYNAMICS, P273, DOI [10.1007/978-1-4020-5684-0_13, DOI 10.1007/978-1-4020-5684-0_13]

[4] A lightweight design approach for an EMU carbody using a material selection method and size optimization [J].

Cho, Jeong Gil ;

Koo, Jeong Seo ;

Jung, Hyun Seung .

JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2016, 30 (02) :673-681

[5] FATIGUE life prediction of a railway bogie under dynamic loads through simulation [J].

Dietz, S ;

Netter, H ;

Sachau, D .

VEHICLE SYSTEM DYNAMICS, 1998, 29 (06) :385-402

[6] The association of Medicaid coverage status at the time of cancer diagnosis in women with gynecologic malignancies: A population-based study [J].

Doll, K. M. ;

Barber, E. L. ;

Meng, K. ;

Basch, E. ;

Gehrig, P. A. ;

Brewster, W. R. ;

Meyer, A. M. .

GYNECOLOGIC ONCOLOGY, 2015, 137 :5-5

[7] A new passive approach to reducing the carbody vertical bending vibration of railway vehicles [J].

Dumitriu, Madalina .

VEHICLE SYSTEM DYNAMICS, 2017, 55 (11) :1787-1806

[8]

Gemma S., 2013, AEROTECNICA MISSILI, V92, P61

[9] Fatigue life assessment of bogie frames in high-speed railway vehicles considering gear meshing [J].

Guo, F. ;

Wu, S. C. ;

Liu, J. X. ;

Zhang, W. ;

Qin, Q. B. ;

Yao, Y. .

INTERNATIONAL JOURNAL OF FATIGUE, 2020, 132 (132)

[10] Review of life assessment techniques applied to dynamically loaded automotive components [J].

Haiba, M ;

Barton, DC ;

Brooks, PC ;

Levesley, MC .

COMPUTERS & STRUCTURES, 2002, 80 (5-6) :481-494

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