China Safety Science Journal ›› 2020, Vol. 30 ›› Issue (8): 86-92.doi: 10.16265/j.cnki.issn1003-3033.2020.08.013

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A risk assessment method for early warning of mechanical safety risks

ZHOU Cheng1,2, JU Likai2   

  1. 1 School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing Jiangsu 210094, China;
    2 Engineering Training Centre, Nanjing University of Science and Technology, Nanjing Jiangsu 210094, China
  • Received:2020-05-10 Revised:2020-07-04 Online:2020-08-28 Published:2021-07-15

Abstract: In order to fill up blank of risk assessment methods for mechanical safety risk early warning, an evaluation method was proposed. Firstly, steps of risk assessment were determined according to unsafe factors generated by workers, machines and environments, which mainly included monitoring value input, risk value calculation, early warning level determination and early warning information release. Secondly, a quantified risk value calculation model was put forward, and warning level determination and information release methods were presented. Finally, the proposed evaluation method was verified with risk assessment example of a certain mechanical arm. The research shows that this method comprehensively considers risk factors of workers, machines and environments, and can release real-time hierarchical risk early warning of intelligent manufacturing system according to risk value calculation model.

Key words: mechanical safety, risk early warning, risk assessment, quantitative model, early warning measures

CLC Number: