Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle

Lv Lin; Wang Jizhong; Chen Shuai

doi:doi:10.11648/j.ajma.20190702.12

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Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle

Lv Lin, Wang Jizhong, Chen Shuai

Published in American Journal of Mechanics and Applications (Volume 7, Issue 2)

Received: 11 May 2019 Accepted: 26 June 2019 Published: 17 July 2019

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Abstract

With the rapid development of the automotive industry and the increasing demand of consumers for the quality of automotive products, improving the reliability of automotive products has become the "top priority" of enterprises. While improving the reliability level of engine mounting bracket for commercial vehicles, it can not reduce the mechanical strength performance of the structure. Therefore, it is of practical significance to optimize the structure and study the reliability of the mounting bracket. The engine mounting bracket mainly supports the weight of the engine. According to the design space and process requirements, the topology optimization design is carried out to find the most reasonable material distribution. Structural optimization of mounting bracket can be demonstrated by different schemes in conceptual design stage, and verified by finite element analysis and strength test. Among many complex factors affecting structural reliability, product design is the most fundamental one. The design determines the reliability of engine mounting bracket, and the defects left in the design can not be completely solved in production and use. During the design and development of a commercial vehicle, the engine mounting bracket broke during road test. Through macro-analysis of the fracture site, it is preliminarily determined that the suspension bracket system suffers from rapid fracture due to excessive load under driving conditions, resulting in stress concentration. The finite element model of powertrain mounting bracket is established, the strength of mounting bracket is analyzed, and the structure of engine bracket is improved according to its stress distribution and processing requirements. Comparing the performance of engine mounting bracket before and after improvement, it shows that the strength of engine mounting bracket has been improved obviously, and the weight has been reduced effectively. It provides an important reference for the strength performance design of engine mounting bracket.

Published in	American Journal of Mechanics and Applications (Volume 7, Issue 2)
DOI	10.11648/j.ajma.20190702.12
Page(s)	21-29
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2019. Published by Science Publishing Group

Keywords

Engine Mounting Bracket, Finite Element Analysis, Structural Improvement, Strength

References

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[3]	Li Xin. Study on Fretting Fatigue Damage Mechanism of Fastener Surface under Characteristic Load of Internal Combustion Engine [D]. 2015.
[4]	Murali M. R. A methodology of using topology optimization in finite element stress analysis to reduce weight of a structure [J]. SAE Paper, 2001-01-275 Hu Rongrong, Yang Chen, Yuan Shuang, etc. Finite Element Analysis for an Engine Mounting Bracket [J]. Modern manufacturing technology and equipment, 2015 (2): 1-2.
[5]	Bai Kunhai. Strength Analysis of Engine Mounting Bracket [J]. Science and Technology and Engineering, 2012, 12 (32): 8793-8797.
[6]	Zhao Lijie, Zhou Zheng, Huang Jianyun et al. Performance calculation and structure design for vehicle powertrain mounting bracket [J]. Journal of Shenyang University of Aeronautics and Astronautics, 2016, 33 (3): 38-46.
[7]	H A Eschenauer, N Olhoff. Topology optimization of continuum structures: a review [J]. Applied Mechanics Review, 2001, 54(4): 331-389.
[8]	J Park, J Hwang, J Kim. Engine Mounting System Stiffness Optimises Handling and NVH Performance [J]. Atz Worldwide, 2016, 118(1): 36-41.
[9]	LE Ooi, ZM Ringin. Optimization of an engine mounting system with consideration of frequency-dependend stiffness and loss factor [J]. Journal of vibration and control, 9(2014): 162-168.
[10]	Li Jiankang, Zheng Lihui, Song Xianglong. Modal analysis of dynamic stiffness of automotive engine mounting system [J]. Automotive Engineering, 2010, 31 (5): 457-461.
[11]	Hu Jin-fang, Rajendra Singh. Improved torque roll axis decouping axiom for a powertrain mounting system in the presence of a compliant base [J]. Journal of sound and vibration, 331(2012):1498-1518.
[12]	Guo Shaoliang, Li Jinchao, Xiong Fei et al. A Research on Structure Optimization of Engine Mount Bracket Based on Misuse Working Condition [J]. Automotive Engineering, 2016, 38 (10): 1220-1226.
[13]	Zhu Hongjun, Cheng Rui. Development of Die Casting Parts for Engine Suspension Bracket [J]. Special Casting and Non-ferrous Alloys, 2019, 39(01): 35-37.
[14]	Cao Huawei, Li Eryong, Wang Jian. Reasons for Fracture of Automotive Engine Bracket [J]. Automotive Technology and Materials, 2015 (07): 45-49.
[15]	Lu Shuyan, Wang Yongfei, Wang Jia, Shan Xiaogen, Zhang Enhai. Improvement of Structure Design of Engine Brack et Castings Based on CAE [J]. Foundry Technology, 2015, 36 (12): 3030-3031+3034.

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APA Style

Lv Lin, Wang Jizhong, Chen Shuai. (2019). Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. American Journal of Mechanics and Applications, 7(2), 21-29. https://doi.org/10.11648/j.ajma.20190702.12

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ACS Style

Lv Lin; Wang Jizhong; Chen Shuai. Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. Am. J. Mech. Appl. 2019, 7(2), 21-29. doi: 10.11648/j.ajma.20190702.12

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AMA Style

Lv Lin, Wang Jizhong, Chen Shuai. Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. Am J Mech Appl. 2019;7(2):21-29. doi: 10.11648/j.ajma.20190702.12

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@article{10.11648/j.ajma.20190702.12,
  author = {Lv Lin and Wang Jizhong and Chen Shuai},
  title = {Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle},
  journal = {American Journal of Mechanics and Applications},
  volume = {7},
  number = {2},
  pages = {21-29},
  doi = {10.11648/j.ajma.20190702.12},
  url = {https://doi.org/10.11648/j.ajma.20190702.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20190702.12},
  abstract = {With the rapid development of the automotive industry and the increasing demand of consumers for the quality of automotive products, improving the reliability of automotive products has become the "top priority" of enterprises. While improving the reliability level of engine mounting bracket for commercial vehicles, it can not reduce the mechanical strength performance of the structure. Therefore, it is of practical significance to optimize the structure and study the reliability of the mounting bracket. The engine mounting bracket mainly supports the weight of the engine. According to the design space and process requirements, the topology optimization design is carried out to find the most reasonable material distribution. Structural optimization of mounting bracket can be demonstrated by different schemes in conceptual design stage, and verified by finite element analysis and strength test. Among many complex factors affecting structural reliability, product design is the most fundamental one. The design determines the reliability of engine mounting bracket, and the defects left in the design can not be completely solved in production and use. During the design and development of a commercial vehicle, the engine mounting bracket broke during road test. Through macro-analysis of the fracture site, it is preliminarily determined that the suspension bracket system suffers from rapid fracture due to excessive load under driving conditions, resulting in stress concentration. The finite element model of powertrain mounting bracket is established, the strength of mounting bracket is analyzed, and the structure of engine bracket is improved according to its stress distribution and processing requirements. Comparing the performance of engine mounting bracket before and after improvement, it shows that the strength of engine mounting bracket has been improved obviously, and the weight has been reduced effectively. It provides an important reference for the strength performance design of engine mounting bracket.},
 year = {2019}
}

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TY  - JOUR
T1  - Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle
AU  - Lv Lin
AU  - Wang Jizhong
AU  - Chen Shuai
Y1  - 2019/07/17
PY  - 2019
N1  - https://doi.org/10.11648/j.ajma.20190702.12
DO  - 10.11648/j.ajma.20190702.12
T2  - American Journal of Mechanics and Applications
JF  - American Journal of Mechanics and Applications
JO  - American Journal of Mechanics and Applications
SP  - 21
EP  - 29
PB  - Science Publishing Group
SN  - 2376-6131
UR  - https://doi.org/10.11648/j.ajma.20190702.12
AB  - With the rapid development of the automotive industry and the increasing demand of consumers for the quality of automotive products, improving the reliability of automotive products has become the "top priority" of enterprises. While improving the reliability level of engine mounting bracket for commercial vehicles, it can not reduce the mechanical strength performance of the structure. Therefore, it is of practical significance to optimize the structure and study the reliability of the mounting bracket. The engine mounting bracket mainly supports the weight of the engine. According to the design space and process requirements, the topology optimization design is carried out to find the most reasonable material distribution. Structural optimization of mounting bracket can be demonstrated by different schemes in conceptual design stage, and verified by finite element analysis and strength test. Among many complex factors affecting structural reliability, product design is the most fundamental one. The design determines the reliability of engine mounting bracket, and the defects left in the design can not be completely solved in production and use. During the design and development of a commercial vehicle, the engine mounting bracket broke during road test. Through macro-analysis of the fracture site, it is preliminarily determined that the suspension bracket system suffers from rapid fracture due to excessive load under driving conditions, resulting in stress concentration. The finite element model of powertrain mounting bracket is established, the strength of mounting bracket is analyzed, and the structure of engine bracket is improved according to its stress distribution and processing requirements. Comparing the performance of engine mounting bracket before and after improvement, it shows that the strength of engine mounting bracket has been improved obviously, and the weight has been reduced effectively. It provides an important reference for the strength performance design of engine mounting bracket.
VL  - 7
IS  - 2
ER  -

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Author Information

Lv Lin

Qingdao University of Technology, College of Machinery and Automobile, Qingdao, China
Wang Jizhong

Qingdao University of Technology, College of Machinery and Automobile, Qingdao, China
Chen Shuai

Qingdao University of Technology, College of Machinery and Automobile, Qingdao, China

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Plain Text BibTeX RIS

APA Style

Lv Lin, Wang Jizhong, Chen Shuai. (2019). Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. American Journal of Mechanics and Applications, 7(2), 21-29. https://doi.org/10.11648/j.ajma.20190702.12

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ACS Style

Lv Lin; Wang Jizhong; Chen Shuai. Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. Am. J. Mech. Appl. 2019, 7(2), 21-29. doi: 10.11648/j.ajma.20190702.12

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AMA Style

Lv Lin, Wang Jizhong, Chen Shuai. Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle. Am J Mech Appl. 2019;7(2):21-29. doi: 10.11648/j.ajma.20190702.12

Copy | Download

@article{10.11648/j.ajma.20190702.12,
  author = {Lv Lin and Wang Jizhong and Chen Shuai},
  title = {Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle},
  journal = {American Journal of Mechanics and Applications},
  volume = {7},
  number = {2},
  pages = {21-29},
  doi = {10.11648/j.ajma.20190702.12},
  url = {https://doi.org/10.11648/j.ajma.20190702.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajma.20190702.12},
  abstract = {With the rapid development of the automotive industry and the increasing demand of consumers for the quality of automotive products, improving the reliability of automotive products has become the "top priority" of enterprises. While improving the reliability level of engine mounting bracket for commercial vehicles, it can not reduce the mechanical strength performance of the structure. Therefore, it is of practical significance to optimize the structure and study the reliability of the mounting bracket. The engine mounting bracket mainly supports the weight of the engine. According to the design space and process requirements, the topology optimization design is carried out to find the most reasonable material distribution. Structural optimization of mounting bracket can be demonstrated by different schemes in conceptual design stage, and verified by finite element analysis and strength test. Among many complex factors affecting structural reliability, product design is the most fundamental one. The design determines the reliability of engine mounting bracket, and the defects left in the design can not be completely solved in production and use. During the design and development of a commercial vehicle, the engine mounting bracket broke during road test. Through macro-analysis of the fracture site, it is preliminarily determined that the suspension bracket system suffers from rapid fracture due to excessive load under driving conditions, resulting in stress concentration. The finite element model of powertrain mounting bracket is established, the strength of mounting bracket is analyzed, and the structure of engine bracket is improved according to its stress distribution and processing requirements. Comparing the performance of engine mounting bracket before and after improvement, it shows that the strength of engine mounting bracket has been improved obviously, and the weight has been reduced effectively. It provides an important reference for the strength performance design of engine mounting bracket.},
 year = {2019}
}

Copy | Download

TY  - JOUR
T1  - Strength Performance Analysis and Improvement of Engine Mounting Bracket for a Commercial Vehicle
AU  - Lv Lin
AU  - Wang Jizhong
AU  - Chen Shuai
Y1  - 2019/07/17
PY  - 2019
N1  - https://doi.org/10.11648/j.ajma.20190702.12
DO  - 10.11648/j.ajma.20190702.12
T2  - American Journal of Mechanics and Applications
JF  - American Journal of Mechanics and Applications
JO  - American Journal of Mechanics and Applications
SP  - 21
EP  - 29
PB  - Science Publishing Group
SN  - 2376-6131
UR  - https://doi.org/10.11648/j.ajma.20190702.12
AB  - With the rapid development of the automotive industry and the increasing demand of consumers for the quality of automotive products, improving the reliability of automotive products has become the "top priority" of enterprises. While improving the reliability level of engine mounting bracket for commercial vehicles, it can not reduce the mechanical strength performance of the structure. Therefore, it is of practical significance to optimize the structure and study the reliability of the mounting bracket. The engine mounting bracket mainly supports the weight of the engine. According to the design space and process requirements, the topology optimization design is carried out to find the most reasonable material distribution. Structural optimization of mounting bracket can be demonstrated by different schemes in conceptual design stage, and verified by finite element analysis and strength test. Among many complex factors affecting structural reliability, product design is the most fundamental one. The design determines the reliability of engine mounting bracket, and the defects left in the design can not be completely solved in production and use. During the design and development of a commercial vehicle, the engine mounting bracket broke during road test. Through macro-analysis of the fracture site, it is preliminarily determined that the suspension bracket system suffers from rapid fracture due to excessive load under driving conditions, resulting in stress concentration. The finite element model of powertrain mounting bracket is established, the strength of mounting bracket is analyzed, and the structure of engine bracket is improved according to its stress distribution and processing requirements. Comparing the performance of engine mounting bracket before and after improvement, it shows that the strength of engine mounting bracket has been improved obviously, and the weight has been reduced effectively. It provides an important reference for the strength performance design of engine mounting bracket.
VL  - 7
IS  - 2
ER  -

Copy | Download