| 高温环境下再热主汽阀机构运动性能不确定性分析 |
| |
| 引用本文： | 徐东,胡小峰,鲍劲松,金烨. 高温环境下再热主汽阀机构运动性能不确定性分析[J]. 计算机集成制造系统, 2009, 15(7) |
| |
| 作者姓名： | 徐东 胡小峰 鲍劲松 金烨 |
| |
| 作者单位： | 上海交通大学机械与动力工程学院,上海,200240 |
| |
| 摘 要： | 针对汽轮机再热主汽阀机构在高温蒸汽环境下经常发生卡涩、关闭不全或关闭延时等问题,分析并找到了引起此类问题的主要因素是高温蒸汽的热变形、阀轴与轴承的尺寸误差、同轴度误差.据此,建立了阀门机构的功能虚拟样机模型,并进行了动力学分析.仿真结果表明,机构运动学性能取决于上述因素的综合影响,其中装配同轴度误差的不确定性是机构运动性能不确定性的主要原因.依据机构运动学可靠性分析,提出了解决阀门卡涩方案,并已应用于实际工程.
|
| 关 键 词： | 汽轮机 再热主汽阀机构 运动性能 可靠性 间隙铰 热变形 |
Motion uncertainty analysis for reheat-stop-valve mechanism in high temperature environment |
| |
| XU Dong,HU Xiao-feng,BAO Jin-song,JIN Ye. Motion uncertainty analysis for reheat-stop-valve mechanism in high temperature environment[J]. Computer Integrated Manufacturing Systems, 2009, 15(7) |
| |
| Authors: | XU Dong HU Xiao-feng BAO Jin-song JIN Ye |
| |
| Affiliation: | School of Mechanical Engineering;Shanghai Jiaotong University;Shanghai 200240;China |
| |
| Abstract: | A method was proposed for finding the leading influencing factors including thermal deformation,dimension errors and assembly concentricity errors which caused mechanical jamming,incompetence or delayed occlusion in the reheat-stop-valve mechanisms of steam turbines. Then,a functional virtual prototype of the valve mechanism and dynamics analysis were presented to deal with these problems. Simulation results showed that the dynamics performance of the valve mechanism was mainly determined by the comprehensi... |
| |
| Keywords: | steam turbines reheat-stop-valve mechanism dynamics performance reliability clearance joint thermal deformation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
