Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method
Dynamic stiffness and damping of the headstock, which is a critical component of precision horizontal machining center, are two main factors that influence machining accuracy and surface finish quality. Constrained Layer Damping (CLD) structure is proved to be effective in raising damping capacity f...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2017/2736545 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849304689427873792 |
|---|---|
| author | Yakai Xu Weiguo Gao Yuhan Yu Dawei Zhang Xiangsong Zhao Yanling Tian Huaying Cun |
| author_facet | Yakai Xu Weiguo Gao Yuhan Yu Dawei Zhang Xiangsong Zhao Yanling Tian Huaying Cun |
| author_sort | Yakai Xu |
| collection | DOAJ |
| description | Dynamic stiffness and damping of the headstock, which is a critical component of precision horizontal machining center, are two main factors that influence machining accuracy and surface finish quality. Constrained Layer Damping (CLD) structure is proved to be effective in raising damping capacity for the thin plate and shell structures. In this paper, one kind of high damping material is utilized on the headstock to improve damping capacity. The dynamic characteristic of the hybrid headstock is investigated analytically and experimentally. The results demonstrate that the resonant response amplitudes of the headstock with damping material can decrease significantly compared to original cast structure. To obtain the optimal configuration of damping material, a topology optimization method based on the Evolutionary Structural Optimization (ESO) is implemented. Modal Strain Energy (MSE) method is employed to analyze the damping and to derive the sensitivity of the modal loss factor. The optimization results indicate that the added weight of damping material decreases by 50%; meanwhile the first two orders of modal loss factor decrease by less than 23.5% compared to the original structure. |
| format | Article |
| id | doaj-art-3a155cde35b44e37bbd8a098ce4bcbcd |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3a155cde35b44e37bbd8a098ce4bcbcd2025-08-20T03:55:40ZengWileyShock and Vibration1070-96221875-92032017-01-01201710.1155/2017/27365452736545Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy MethodYakai Xu0Weiguo Gao1Yuhan Yu2Dawei Zhang3Xiangsong Zhao4Yanling Tian5Huaying Cun6Key Laboratory of Mechanism Theory and Equipment Design, Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Mechanism Theory and Equipment Design, Ministry of Education, Tianjin University, Tianjin 300072, ChinaSchool of Electrical Engineering and Automation, East China Jiaotong University, Nanchang 330013, ChinaKey Laboratory of Mechanism Theory and Equipment Design, Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Mechanism Theory and Equipment Design, Ministry of Education, Tianjin University, Tianjin 300072, ChinaKey Laboratory of Mechanism Theory and Equipment Design, Ministry of Education, Tianjin University, Tianjin 300072, ChinaShenji Group Kunming Machine Tool Company Limited, Kunming 650203, ChinaDynamic stiffness and damping of the headstock, which is a critical component of precision horizontal machining center, are two main factors that influence machining accuracy and surface finish quality. Constrained Layer Damping (CLD) structure is proved to be effective in raising damping capacity for the thin plate and shell structures. In this paper, one kind of high damping material is utilized on the headstock to improve damping capacity. The dynamic characteristic of the hybrid headstock is investigated analytically and experimentally. The results demonstrate that the resonant response amplitudes of the headstock with damping material can decrease significantly compared to original cast structure. To obtain the optimal configuration of damping material, a topology optimization method based on the Evolutionary Structural Optimization (ESO) is implemented. Modal Strain Energy (MSE) method is employed to analyze the damping and to derive the sensitivity of the modal loss factor. The optimization results indicate that the added weight of damping material decreases by 50%; meanwhile the first two orders of modal loss factor decrease by less than 23.5% compared to the original structure.http://dx.doi.org/10.1155/2017/2736545 |
| spellingShingle | Yakai Xu Weiguo Gao Yuhan Yu Dawei Zhang Xiangsong Zhao Yanling Tian Huaying Cun Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method Shock and Vibration |
| title | Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method |
| title_full | Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method |
| title_fullStr | Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method |
| title_full_unstemmed | Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method |
| title_short | Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method |
| title_sort | dynamic optimization of constrained layer damping structure for the headstock of machine tools with modal strain energy method |
| url | http://dx.doi.org/10.1155/2017/2736545 |
| work_keys_str_mv | AT yakaixu dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT weiguogao dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT yuhanyu dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT daweizhang dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT xiangsongzhao dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT yanlingtian dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod AT huayingcun dynamicoptimizationofconstrainedlayerdampingstructurefortheheadstockofmachinetoolswithmodalstrainenergymethod |