包带装置轴向连接刚度计算与分析

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振动与冲击 ›› 2021, Vol. 40 ›› Issue (19) : 172-179.

论文

包带装置轴向连接刚度计算与分析

康士朋1，楼云锋1，王添翼1，丁齐林1，王小卫2

作者信息 +

Calculation and analysis of axial connection stiffness of clamp band device

KANG Shipeng1, LOU Yunfeng1, WANG Tianyi1, DING Qilin1 , WANG Xiaowei2

Author information +

文章历史 +

摘要

提出了一种包带连接刚度计算方法，在考虑对接框变形基础上，增加了包带装置(CBD)夹块变形的影响，并通过有限元计算结果对数值计算结果进行修正，通过开展试验对该方法进行验证，将该方法计算得到结果与试验结果进行对比，计算偏差为31%，验证了该方法的正确性。基于该方法，对夹块变形对包带连接刚度的影响进行分析，研究表明：对接框变形是影响包带连接刚度的最主要因素，但考虑夹块变形影响可以提高计算准确度；进一步对工程中通过提高包带预紧力来提高包带连接刚度的做法进行定量分析，算例结果表明提高包带预紧力对提高包带连接刚度具有明显非线性特性：包带预紧力增加10%以内，包带连接刚度同等比例增加；包带预紧力增加10%~30%，包带连接刚度只增加10%~20%左右；包带预紧力增加超过30%后，再增加预紧力则不能提高包带连接刚度。

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.

导出引用

康士朋，楼云锋，王添翼，丁齐林，王小卫. 包带装置轴向连接刚度计算与分析[J]. 振动与冲击, 2021, 40(19): 172-179

KANG Shipeng, LOU Yunfeng, WANG Tianyi, DING Qilin, WANG Xiaowei. 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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