Noise is one of the most widespread occupational hazardous agents. It’s attributable for 16 % mortality and morbidity due to occupational exposures for global burden of occupational disease and injury (Nelson et al. 2005). According to the World Health Organization (WHO), noise-induced hearing impairment is the most common irreversible (and preventable) occupational hazards world-wide. And in m...

Assessing the safety status of cranes is an important problem. To overcome the inaccuracies and misjudgments in such assessments, this work describes a safety assessment method for cranes that combines entropy and cumulative prospect theory. Firstly, the proposed method transforms the set of evaluation indices into an evaluation vector. Secondly, a decision matrix is then constructed from the e...

In this paper, the tracking control problem is considered for the payload transportation with an underactuated twodimensional overhead crane. Two sliding mode controllers are designed to perform the trajectory tracking. One is proposed to control hoisting and lowering the suspended payload, and the other one is proposed to control both trolley positioning and payload swaying. Considering the se...

This paper proposes an adaptive control method for an underactuated overhead crane system. To improve the transferring efficiency and enhance the security of the crane system, the trolley is required to reach the desired position as fast as possible, while the swing of payload needs to be within an acceptable domain. To achieve these objectives, a novel twostep design strategy consisting of a t...