基于指数函数和的老旧电梯综合风险评价方法  

Method for assessing risk involved in old elevator operation based on sum of exponential functions

作　　者：李刚 马海霞[2] 刘英杰 陈国华[3] 

机构地区：[1]广州特种机电设备检测研究院 [2]华南理工大学广州学院电气工程系 [3]华南理工大学安全科学与工程研究所

出　　处：《中国安全科学学报》2016年第8期69-73,共5页China Safety Science Journal

基　　金：广东省科技厅科技项目(2014A040401046);广东省质监局科技项目(2015PT01);广州市创新平台建设与共享专项项目(201509010008)

摘　　要：为降低老旧电梯运行风险,提出基于整机运行性能参数修正的指数函数综合风险评价方法。从电梯关键部件出发,归纳电梯可能出现的危险状态,并将危险状态与电梯各关键部件对应,形成以部件危险状态为特征的风险评价指标体系。研究整机运行性能参数与部件状态的关系,并修正与之相关的子系统综合风险指标。综合考虑部件指标完备情况,以部件危险度为指数、部件指标完备性基数为底数,构建老旧电梯风险评价指数函数数学模型。研究结果表明,I,II类风险对整机风险影响水平显著,加强这2类风险的监测与管理能大大降低电梯运行风险。In order to reduce the operation risk of old elevators, a risk assessment method was worked out for old elevator based on sum of exponential functions. Starting from the elevator key components, possible dangerous states of an elevator were summarized. A risk assessment index system was established that was characterized by the dangerous state of each key part. Relationships between a elevator＇s performance parameters and its components＇ states were researched.The integrated risk of a subsystem that corresponding to each parameter was corrected. An exponential functions＇ sum based model was built for assessing risks of old elevators,in which risks involved in the key parts were taken as the exponents and the completeness of component index as the base numbers. The results show that the risks of I, II class have a significant impact on the overall risk level, strengthening monitoring and management of I, II class risk can reduce the risk involved in the elevator operation.

关 键 词：老旧电梯 关键部件 指标体系 风险评价 变指数 

分 类 号：X952[环境科学与工程—安全科学]