包带装置轴向连接刚度计算与分析

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Abstract Here, a calculating method of clamp band connection stiffness was proposed. Based on considering deformation of interface frame, the influence of clamp block deformation of clamp band device (CBD) was added. The numerical calculation results obtained with the proposed method were modified using the finite element calculation results. This method was verified with tests. The calculated results obtained with this method were compared with test ones, and the calculation deviation was 3.1% to verify the correctness of this method. Based on this method, effects of clamp block deformation on clamp band connection stiffness were analyzed. The results showed that deformation of interface frame is the most important factor affecting clamp band connection stiffness, but considering clamp block deformation can improve the calculation accuracy. Furthermore, the method to improve clamp band connection stiffness through increasing the pre-tightening force in engineering was analyzed quantitatively. The example calculation results showed that the relationship between pre-tightening force and clamp band connection stiffness has obvious nonlinear characteristics: when pre-tightening force increases within 10%, clamp band connection stiffness increases in the same proportion; while the former increases by 10%-30%, the latter increases by 10%-20%; after the former increases by more than 30%, increase in the former can’t improve the latter.

Key words： clamp band device (CBD) connection stiffness pre-tightening force stiffness test

Received: 08 December 2020 Published: 15 October 2021

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	Articles by authors
	KANG Shipeng
	LOU Yunfeng
	WANG Tianyi
	DING Qilin
	WANG Xiaowei

Cite this article:

KANG Shipeng,LOU Yunfeng,WANG Tianyi, et al. Calculation and analysis of axial connection stiffness of clamp band device[J]. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(19): 172-179.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2021/V40/I19/172

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