TY - JOUR

T1 - Friction-Induced Vibrations during Tightening of Bolted Joints—Analytical and Experimental Results

AU - Baramsky, Nicolaj

AU - Seibel, Arthur

AU - Schlattmann, Josef

N1 - This work was supported by the German Research Foundation (DFG) under grant SCHL 275/13-1.

PY - 2018/12/5

Y1 - 2018/12/5

N2 - 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.

AB - 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.

KW - friction-induced vibrations

KW - stick-slip

KW - screws

KW - bolted joints

KW - tightening process

KW - Engineering

U2 - 10.3390/vibration1020021

DO - 10.3390/vibration1020021

M3 - Journal articles

VL - 1

SP - 312

EP - 337

JO - Vibration

JF - Vibration

SN - 2571-631X

IS - 2

ER -