Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket
Abstract The cable bracket is one of the crucial components of high-speed Electric Multiple Units (EMUs), which is fixed to the axle box by bolts to support the cable. As an important parameter of the joint surface, contact stiffness significantly affects the dynamic response and service life of the...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-11-01
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| Series: | Chinese Journal of Mechanical Engineering |
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| Online Access: | https://doi.org/10.1186/s10033-024-01135-0 |
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| _version_ | 1846172196036149248 |
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| author | Xue Wei Zunsong Ren Guangquan Li |
| author_facet | Xue Wei Zunsong Ren Guangquan Li |
| author_sort | Xue Wei |
| collection | DOAJ |
| description | Abstract The cable bracket is one of the crucial components of high-speed Electric Multiple Units (EMUs), which is fixed to the axle box by bolts to support the cable. As an important parameter of the joint surface, contact stiffness significantly affects the dynamic response and service life of the cable bracket. However, it is difficult to directly measure the contact stiffness of the joint surface. As a result, an identification method is proposed in this investigation to identify the contact stiffness. A finite element model incorporating both normal and tangential stiffness parameters is developed. According to the finite element model and modal testing results, an improved particle swarm optimization algorithm is employed to identify the contact stiffness of the joint surface. The effect of the contact stiffness on the vibrations of the cable bracket is investigated. The findings indicate that pre-tightening torque significantly influences the contact stiffness of the cable bracket. The contact stiffness has a great effect on the vibrations of the cable bracket. Optimal contact stiffness notably reduces vibrations of the cable bracket, thereby extending its service life. |
| format | Article |
| id | doaj-art-b5e6c13ba498444c8b0a0171e27690fc |
| institution | Kabale University |
| issn | 2192-8258 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chinese Journal of Mechanical Engineering |
| spelling | doaj-art-b5e6c13ba498444c8b0a0171e27690fc2024-11-10T12:11:42ZengSpringerOpenChinese Journal of Mechanical Engineering2192-82582024-11-0137111510.1186/s10033-024-01135-0Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable BracketXue Wei0Zunsong Ren1Guangquan Li2School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong UniversitySchool of Mechanical, Electronic and Control Engineering, Beijing Jiaotong UniversityCRRC Qingdao Sifang Co., Ltd.Abstract The cable bracket is one of the crucial components of high-speed Electric Multiple Units (EMUs), which is fixed to the axle box by bolts to support the cable. As an important parameter of the joint surface, contact stiffness significantly affects the dynamic response and service life of the cable bracket. However, it is difficult to directly measure the contact stiffness of the joint surface. As a result, an identification method is proposed in this investigation to identify the contact stiffness. A finite element model incorporating both normal and tangential stiffness parameters is developed. According to the finite element model and modal testing results, an improved particle swarm optimization algorithm is employed to identify the contact stiffness of the joint surface. The effect of the contact stiffness on the vibrations of the cable bracket is investigated. The findings indicate that pre-tightening torque significantly influences the contact stiffness of the cable bracket. The contact stiffness has a great effect on the vibrations of the cable bracket. Optimal contact stiffness notably reduces vibrations of the cable bracket, thereby extending its service life.https://doi.org/10.1186/s10033-024-01135-0Contact stiffnessDynamic responseModal testHigh-speed EMUsPre-tightening torque |
| spellingShingle | Xue Wei Zunsong Ren Guangquan Li Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket Chinese Journal of Mechanical Engineering Contact stiffness Dynamic response Modal test High-speed EMUs Pre-tightening torque |
| title | Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket |
| title_full | Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket |
| title_fullStr | Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket |
| title_full_unstemmed | Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket |
| title_short | Contact Stiffness Identification Method for Joint Surface and the Effect of Contact Stiffness on the Dynamic Response of the Cable Bracket |
| title_sort | contact stiffness identification method for joint surface and the effect of contact stiffness on the dynamic response of the cable bracket |
| topic | Contact stiffness Dynamic response Modal test High-speed EMUs Pre-tightening torque |
| url | https://doi.org/10.1186/s10033-024-01135-0 |
| work_keys_str_mv | AT xuewei contactstiffnessidentificationmethodforjointsurfaceandtheeffectofcontactstiffnessonthedynamicresponseofthecablebracket AT zunsongren contactstiffnessidentificationmethodforjointsurfaceandtheeffectofcontactstiffnessonthedynamicresponseofthecablebracket AT guangquanli contactstiffnessidentificationmethodforjointsurfaceandtheeffectofcontactstiffnessonthedynamicresponseofthecablebracket |