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Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method
Joint Authors
Zhang, Dawei
Tian, Yanling
Xu, Yakai
Yu, Yuhan
Zhao, Xiangsong
Cun, Huaying
Gao, Weiguo
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-02-22
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Xu, Yakai& Gao, Weiguo& Yu, Yuhan& Zhang, Dawei& Zhao, Xiangsong& Tian, Yanling…[et al.]. 2017. Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method. Shock and Vibration،Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1204170
Modern Language Association (MLA)
Xu, Yakai…[et al.]. Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method. Shock and Vibration No. 2017 (2017), pp.1-13.
https://search.emarefa.net/detail/BIM-1204170
American Medical Association (AMA)
Xu, Yakai& Gao, Weiguo& Yu, Yuhan& Zhang, Dawei& Zhao, Xiangsong& Tian, Yanling…[et al.]. Dynamic Optimization of Constrained Layer Damping Structure for the Headstock of Machine Tools with Modal Strain Energy Method. Shock and Vibration. 2017. Vol. 2017, no. 2017, pp.1-13.
https://search.emarefa.net/detail/BIM-1204170
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1204170