Experimental assessment of the static stiffness of machine parts and structures by changing the magnitude of the hysteresis as a function of loading

被引:11
作者
Stejskal, Tomas [1 ]
Dovica, Miroslav [2 ]
Svetlik, Jozef [1 ]
Demec, Peter [1 ]
机构
[1] Tech Univ Kosice, Fac Mech Engn, Inst Automat Mechatron Robot & Prod Syst, Letna 9, Kosice 04200, Slovakia
[2] Tech Univ Kosice, Fac Mech Engn, Inst Special Engn Proc, Letna 9, Kosice 04200, Slovakia
来源
OPEN ENGINEERING | 2019年 / 9卷 / 01期
关键词
Static stiffness; laser interferometer; hysteresis; ERRORS; TOOLS;
D O I
10.1515/eng-2019-0078
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Static stiffness is determined by one-sided loading and unloading of machine parts relative to the selected base. For each structure, there will be some loss of potential energy due to the dissipative forces that occur during the loading inside the structure. This loss is manifested in hysteresis in the stiffness diagram. A new approach to the assessment of static stiffness consists in gradual, bilateral loading and unloading of the structure through the effect of static forces of different magnitude. In this process, the stiffness hysteresis varies, depending on the intrinsic nature of the dissipative forces, a specific property suitable for assessing the condition of machines.
引用
收藏
页码:655 / 659
页数:5
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