Friction-Induced Vibrations during Tightening of Bolted Joints—Analytical and Experimental Results

Vibration

Seibel, Arthur¹  Baramsky, Nicolaj² 

[1] Author to whom correspondence should be addressed;Workgroup on System Technologies and Engineering Design Methodology, Hamburg University of Technology, 21073 Hamburg, Germany

关键词: friction-induced vibrations;    stick-slip;    screws;    bolted joints;    tightening process;   

DOI  :  10.3390/vibration1020021

学科分类：力学，机械学

来源: mdpi

【 摘 要 】

Bolted joints are one of the most used machine elements. Holding together structures of all sizes, the integrity rests on their shoulders. Thus, an accurate and reliable assembly of the joint is crucial. While it is the aim to not experience friction-induced vibrations at all, at some situations, it is unavoidable. These cases, however, have yet been out of the focus of control algorithms due to the volatile nature of the process. This contribution delivers analytical and experimental results for the occurrence of friction-induced vibrations during tightening of bolted joints. Previous findings of system characteristic constants could be validated, which can be used to monitor the tightening process even while strong vibrations during the tightening process occur. Additionally, a real-time algorithm is presented which allows for an advanced process monitoring and control by identifying process characteristics based on which predictions of the process can be made. These measures significantly improve the capabilities to reach the target values of the tightening process.

【 授权许可】

CC BY