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Author:

Wang, Jianhua (Wang, Jianhua.) | Chen, Jianke (Chen, Jianke.) | Guo, Tieneng (Guo, Tieneng.) | Song, Bin (Song, Bin.) | Guo, Dongliang (Guo, Dongliang.)

Indexed by:

CPCI-S

Abstract:

Heavy-duty gantry machine plays an important role in the energy, shipbuilding, aerospace, transportation and military industry and other pillar industries, and is a manifestation of national equipment manufacturing capacity. Cross rail is one of the key structural components, and its natural frequency affects the dynamic performance of the machine. It is difficult to obtain the accurate analysis of natural frequency by using the analytical method because of the complex internal structure. The finite element method is a general method to obtain natural frequency, but, is also difficult to obtain the precise result, because the analysis result depends on many factors, such as meshing manners, the constraint conditions, joint parameters, damping, and so on. The density of mesh is an important factor to affect the analysis result especially. Theoretically, the smaller element, the closer to the true result. But more dense grid could sharply increase the degree of freedom, and result in the insufferable solving speed in the analysis of the cross rail. So to find a balance point between the speed and the accuracy becomes very meaningful. In this paper, the modal analysis was carried out on the cross rail. The paper focus on exploring the influence of different element size on the results of the analysis. In order to verify the correctness of the modeling, the modal testing is carried on the cross rail, and the experimental result is adopted to prove the correctness of finite element modeling.

Keyword:

Finite element Element size Heavy-duty machine cross-rail

Author Community:

  • [ 1 ] [Wang, Jianhua]Beijing Univ Technol, Beijing 100124, Peoples R China
  • [ 2 ] [Chen, Jianke]Beijing Univ Technol, Beijing 100124, Peoples R China
  • [ 3 ] [Guo, Tieneng]Beijing Univ Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Song, Bin]Chinese Acad Sci, Inst Elect Engn, Beijing 100080, Peoples R China
  • [ 5 ] [Guo, Dongliang]Capital Spaceflight Machinery Co, Beijing 100076, Peoples R China

Reprint Author's Address:

  • [Chen, Jianke]Beijing Univ Technol, Beijing 100124, Peoples R China

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Source :

PROCEEDINGS OF THE 2016 4TH INTERNATIONAL CONFERENCE ON MACHINERY, MATERIALS AND COMPUTING TECHNOLOGY

ISSN: 2352-5401

Year: 2016

Volume: 60

Page: 964-970

Language: English

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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