核电厂人员闸门顶升机构动力学仿真分析
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摘要
为确保核电厂人员闸门顶升机构结构设计的合理性,对其在密封门启闭过程中的运动特性进行分析研究。本研究借助动力学仿真分析软件(ADAMS)对人员闸门顶升机构可能产生的故障失效模式进行了仿真分析,主要包括顶升机构传动箱运动学分析和传动丝杠动力学分析。分析结果表明,顶升机构传动箱的安装初始位置是导致顶升高度不足的直接因素;通过设置传动箱的初始安装位置、丝杠转速和运行时间可确保顶升高度达到设计要求的60 mm;此外,通过对主要动作部件的受力模拟分析,得出丝杠在径向上承载力可忽略,不会造成丝杠径向断裂事故出现。
In order to ensure the rationality of the structural design for personnel airlock lifting mechanism in nuclear power plants, the dynamic characteristics of the sealing door during the opening and closing process are analyzed. This paper adopts Automatic Dynamic Analysis of Mechanical Systems(ADAMS) software to analyze the airlock dynamics and kinematic performance, including the kinematic simulation of the driving box and the dynamic simulation of the transmission screw. The analysis indicates that the initial installation position of the driving box in the lifting mechanism is the key factor leading to the insufficiency of lifting height. By resetting the initial installation position of the driving box and revolving the velocity and runtime of the screw, the lifting height can meet the design requirement(60 mm). Also, the dynamic simulation results of the screw show that the radial force imposed on the screw can be neglected, which would not cause the rupture of the screw.
In order to ensure the rationality of the structural design for personnel airlock lifting mechanism in nuclear power plants, the dynamic characteristics of the sealing door during the opening and closing process are analyzed. This paper adopts Automatic Dynamic Analysis of Mechanical Systems(ADAMS) software to analyze the airlock dynamics and kinematic performance, including the kinematic simulation of the driving box and the dynamic simulation of the transmission screw. The analysis indicates that the initial installation position of the driving box in the lifting mechanism is the key factor leading to the insufficiency of lifting height. By resetting the initial installation position of the driving box and revolving the velocity and runtime of the screw, the lifting height can meet the design requirement(60 mm). Also, the dynamic simulation results of the screw show that the radial force imposed on the screw can be neglected, which would not cause the rupture of the screw.
引文
[1]马毅.航天器展开机构虚拟样机动力学仿真研究[D].北京:中国科学院研究生院(空间科学与应用研究中心),2006.
[2]傅友宾.基于PRO/E和ADAMS的变速器动力学仿真[D].大连:大连理工大学,2007.
[3]蒲明辉,朱晓慧,张冬磊.基于ADAMS的链传动多接触系统仿真效率的提高[J].机械设计与研究,2016,3:60-64.
[4]杜中华,薛德庆,赵迎红.Pro/E和ADAMS传递过程中若干问题的讨论[J].机械与电子,2003,2:68-70.
[2]傅友宾.基于PRO/E和ADAMS的变速器动力学仿真[D].大连:大连理工大学,2007.
[3]蒲明辉,朱晓慧,张冬磊.基于ADAMS的链传动多接触系统仿真效率的提高[J].机械设计与研究,2016,3:60-64.
[4]杜中华,薛德庆,赵迎红.Pro/E和ADAMS传递过程中若干问题的讨论[J].机械与电子,2003,2:68-70.