Three-dimensional finite element method simulation and optimization of shrink fitting process for a large marine crankshaft

IMR OpenIR

	Three-dimensional finite element method simulation and optimization of shrink fitting process for a large marine crankshaft
	M. Y. Sun; S. P. Lu; D. Z. Li; Y. Y. Li; X. G. Lang; S. Q. Wang
	2010
发表期刊	Materials & Design
ISSN	0261-3069
卷号	31 期号:9 页码:4155-4164
摘要	Shrink fit is an important method used to connect mechanical parts but less studied by three-dimensional finite element method. Through a finite element method study, here we have simulated the crankshaft shrink fitting process by focusing on four main aspects: the optimization of heating method before shrink fit, the contact behavior on the interface in shrink fit process, and the structural distortion after shrink fit, as well as the evaluation of the bonding strength. Our results have demonstrated: (1) an extended bore with a satisfied radius can be obtained by imposing temperature gradient around the bore during the heating process. (2) In the beginning of the shrink fit, the journal tends to be absorbed into the shrink fit bore until the interfaces are fully contacted. The journal is then squeezed in radius and extended in axial as the heat transfer becomes stable through the interface. (3) The upper crankweb bends upward when heated, while downward after shrink fitted. The shrink fit distortion leads to the journal' offset and rotation in an individual shrink fit process, and the stacking offset of each journal aggregates the distortion in an integrated crankshaft as compared with the expected shape in an ideal state. (4) The interfacial bonding strength reaches a relative constant in a time that much shorter than expected. The final distribution of the contact pressure on the interface is not uniform but the maximum transmitted torque evaluated by finite element method agrees with that obtained via the proposed analytical method. In terms of these simulated results, a series of practical measurements have been performed with an aim of efficiently enhancing the bonding strength and preventing the shrink fit distortion. (C) 2010 Elsevier Ltd. All rights reserved.
部门归属	[sun, m. y.; lu, s. p.; li, d. z.; li, y. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lang, x. g.; wang, s. q.] dalian huarui marine crankshaft co ltd, dalian 116013, peoples r china.;sun, my (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;mysun@imr.ac.cn
关键词	Ferrous Metals And Alloys Mechanical Fastening Shrinkage Stress-analysis Fit Interference Design Fire
URL	查看原文
WOS记录号	WOS:000279518900015
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31459
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	M. Y. Sun,S. P. Lu,D. Z. Li,et al. Three-dimensional finite element method simulation and optimization of shrink fitting process for a large marine crankshaft[J]. Materials & Design,2010,31(9):4155-4164.
APA	M. Y. Sun,S. P. Lu,D. Z. Li,Y. Y. Li,X. G. Lang,&S. Q. Wang.(2010).Three-dimensional finite element method simulation and optimization of shrink fitting process for a large marine crankshaft.Materials & Design,31(9),4155-4164.
MLA	M. Y. Sun,et al."Three-dimensional finite element method simulation and optimization of shrink fitting process for a large marine crankshaft".Materials & Design 31.9(2010):4155-4164.