The computational method of substructure’s frequency response function in transfer path analysis
The multi-degree-of-freedom coupled vibration system with “engine-mount-body” as the transfer path was divided into active substructure (engine), passive substructure (body) and linking components (mounts) between active and passive substructure. According to the dynamic equation of multi-degree-of-...
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doaj-5d72c9370ffb4a068b53d37b23b487f92020-11-25T03:13:59ZengJVE InternationalJournal of Vibroengineering1392-87162538-84602020-05-0122350952310.21595/jve.2019.2089220892The computational method of substructure’s frequency response function in transfer path analysisKe Chen0Ning Li1Shaowei Jiang2School of Automobiles and Transportation, Shenyang Ligong University, Shenyang, ChinaSchool of Automobiles and Transportation, Shenyang Ligong University, Shenyang, ChinaSchool of Automobiles and Transportation, Shenyang Ligong University, Shenyang, ChinaThe multi-degree-of-freedom coupled vibration system with “engine-mount-body” as the transfer path was divided into active substructure (engine), passive substructure (body) and linking components (mounts) between active and passive substructure. According to the dynamic equation of multi-degree-of-freedom coupling vibration system, the computational method of the substructure’s Frequency Response Function (FRF) was proposed. For the coupled vibration system of the real vehicle’s transfer path, the computational method of the substructure’s FRF was used to obtain the FRF of substructure and dynamic mount stiffness based on the FRF of system obtained by the hammering test. Combining the dynamic mount stiffness with the vibration acceleration of the active and passive sides of the mount, the operating load was identified based on the mount-stiffness method of the transfer path analysis. Combining the operating load with the FRF of substructure to analyze the contribution of the transfer path, the contribution of each path to the target location (the Z-direction of the front floor of the cab) was presented. The correctness of the computational method of the substructure’s FRF was presented by calculating the vibration isolation ratio of the mount, which provided theoretical support for the research of dynamic characteristics of the substructure and linking components.https://www.jvejournals.com/article/20892transfer path analysissubstructure’s frfdynamic mount stiffness |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ke Chen Ning Li Shaowei Jiang |
spellingShingle |
Ke Chen Ning Li Shaowei Jiang The computational method of substructure’s frequency response function in transfer path analysis Journal of Vibroengineering transfer path analysis substructure’s frf dynamic mount stiffness |
author_facet |
Ke Chen Ning Li Shaowei Jiang |
author_sort |
Ke Chen |
title |
The computational method of substructure’s frequency response function in transfer path analysis |
title_short |
The computational method of substructure’s frequency response function in transfer path analysis |
title_full |
The computational method of substructure’s frequency response function in transfer path analysis |
title_fullStr |
The computational method of substructure’s frequency response function in transfer path analysis |
title_full_unstemmed |
The computational method of substructure’s frequency response function in transfer path analysis |
title_sort |
computational method of substructure’s frequency response function in transfer path analysis |
publisher |
JVE International |
series |
Journal of Vibroengineering |
issn |
1392-8716 2538-8460 |
publishDate |
2020-05-01 |
description |
The multi-degree-of-freedom coupled vibration system with “engine-mount-body” as the transfer path was divided into active substructure (engine), passive substructure (body) and linking components (mounts) between active and passive substructure. According to the dynamic equation of multi-degree-of-freedom coupling vibration system, the computational method of the substructure’s Frequency Response Function (FRF) was proposed. For the coupled vibration system of the real vehicle’s transfer path, the computational method of the substructure’s FRF was used to obtain the FRF of substructure and dynamic mount stiffness based on the FRF of system obtained by the hammering test. Combining the dynamic mount stiffness with the vibration acceleration of the active and passive sides of the mount, the operating load was identified based on the mount-stiffness method of the transfer path analysis. Combining the operating load with the FRF of substructure to analyze the contribution of the transfer path, the contribution of each path to the target location (the Z-direction of the front floor of the cab) was presented. The correctness of the computational method of the substructure’s FRF was presented by calculating the vibration isolation ratio of the mount, which provided theoretical support for the research of dynamic characteristics of the substructure and linking components. |
topic |
transfer path analysis substructure’s frf dynamic mount stiffness |
url |
https://www.jvejournals.com/article/20892 |
work_keys_str_mv |
AT kechen thecomputationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis AT ningli thecomputationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis AT shaoweijiang thecomputationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis AT kechen computationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis AT ningli computationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis AT shaoweijiang computationalmethodofsubstructuresfrequencyresponsefunctionintransferpathanalysis |
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1724645432539217920 |