Loosening of threaded fasteners can cause preload decline, induce bolt fatigue fracture, and
severely compromise the reliability of mechanical products. Loosening detection is an …

Looseness detection of bolted connections is an essential industrial issue that can reduce
the maintenance and repair costs caused by joint failures; however, current loosening …

In the past decade, bolt looseness detection has attracted much attention. Compared to
common approaches that require the implementation of constant-contact sensors, several …

Bolted joints are fundamental building blocks and have been widely used to hold multiple
structural components together, while their looseness may lead to costly disasters in …

This paper proposes a new concept, named the Detectable Resolution of Bolt Pre-load
(DRBP), by using the coda wave interferometry (CWI) to quantitatively measure the pre-load …

A high-strength bolt connection is the key component of large-scale steel structures. Bolt
loosening and preload loss during operation can reduce the load-carrying capacity, safety …

With the development of signal processing and deep learning, vision-based methods for
loosening detection have progressed in recent years. However, existing visual inspection …

Bolted connections are prone to losing their preloads with the increasing service life, thus
inducing engineering accidents and economic losses in industries. Therefore, it is important …

Since loosening of the bolt connection reduce the stability and working accuracy of industrial
robot joint, developing and applying new detection methods to provide effective and reliable …

Among various building blocks, bolted connections are the most widely used components,
which can be employed to hold the integrity of entire structures. Looseness detection of …