Effect of plasticity on dynamic impact in a journal-bearing system: A planar case
文献类型:期刊论文
作者 | Peng Q(彭青)4; Ye X(叶璇)4; Wu H(吴晗)2,3; Liu XM(刘小明)2,4; Wei YG(魏悦广)1 |
刊名 | MECHANISM AND MACHINE THEORY |
出版日期 | 2020-12-01 |
卷号 | 154页码:17 |
ISSN号 | 0094-114X |
关键词 | Conformal contact Dynamic impact Normal force-displacement relationship Plastic deformation Revolute joint |
DOI | 10.1016/j.mechmachtheory.2020.104034 |
英文摘要 | Plasticity is inevitable during contact with a high load, and thus should be considered when simulating high-load contact. Plasticity during non-conformal contact has been well studied. However, no contact law that considers plasticity during conformal contact has been developed, even though such "plastic conformal contact" commonly occurs in journal-bearing systems under high loads. Herein, we constructed a plastic Winkle model of plastic conformal contact, and integrated it into a contact solver to simulate the impact dynamics of a single journal-bearing system. The plastic contact law was first verified by finite-element simulations, which were in good agreement with the plastic indentation observed during loading and unloading. To study the plasticity during conformal impact, we integrated the contact law into a dynamic-contact model of the single journal-bearing system. The results indicate that the energy dissipation due to plasticity was much greater than that from damping and friction. Ignoring plasticity may result in an unrealistic travel distance of the journal during impact. The developed model was used to construct a velocity map to determine whether or not that plasticity should be considered. (c) 2020 Elsevier Ltd. All rights reserved. |
分类号 | 二类/Q1 |
WOS关键词 | FRICTIONLESS CYLINDRICAL CONTACT ; MECHANICAL SYSTEMS ; MULTIBODY SYSTEMS ; CLEARANCE JOINT ; REVOLUTE JOINTS ; FINITE-ELEMENT ; FORCE MODEL ; STATE |
资助项目 | NSFC Basic Science Center Program[11988102] ; National Natural Science Foundation of China[11772334] ; National Natural Science Foundation of China[11902311] ; Youth Innovation Promotion Association CAS[2018022] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040501] |
WOS研究方向 | Engineering |
语种 | 英语 |
WOS记录号 | WOS:000575868700008 |
资助机构 | NSFC Basic Science Center Program ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences |
其他责任者 | Liu, X. |
源URL | [http://dspace.imech.ac.cn/handle/311007/85324] |
专题 | 力学研究所_非线性力学国家重点实验室 力学研究所_流固耦合系统力学重点实验室(2012-) |
作者单位 | 1.Peking Univ, Coll Engn, Beijing 100871, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; |
推荐引用方式 GB/T 7714 | Peng Q,Ye X,Wu H,et al. Effect of plasticity on dynamic impact in a journal-bearing system: A planar case[J]. MECHANISM AND MACHINE THEORY,2020,154:17. |
APA | 彭青,叶璇,吴晗,刘小明,&魏悦广.(2020).Effect of plasticity on dynamic impact in a journal-bearing system: A planar case.MECHANISM AND MACHINE THEORY,154,17. |
MLA | 彭青,et al."Effect of plasticity on dynamic impact in a journal-bearing system: A planar case".MECHANISM AND MACHINE THEORY 154(2020):17. |
入库方式: OAI收割
来源:力学研究所
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