面向机械安全风险预警的评估方法

A risk assessment method for early warning of mechanical safety risks

针对机械安全风险预警缺少安全风险评估方法的问题,提出一种面向机械安全风险预警的风险评估方法。首先根据人、机器、环境产生的不安全因素,确定面向机械安全风险预警的风险评估主要包括监测值输入、风险值计算、预警级别确定、预警信息发布等步骤;其次提出一种量化计算风险的模型,并给出确定预警级别以及发布预警信息的方法;最后通过某机械臂风险评估案例,验证该风险评估方法的有效性。研究表明:面向机械安全风险预警的评估方法能够综合考虑人、机器、环境风险因素,依据风险值计算模型,实时分级开展智能制造系统安全风险预警。

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.