摘要
以超深井提升机制动系统为研究对象,构建了制动系统的虚拟样机模型,获得了不同制动比压下闸盘转速随时间的变化关系;在此基础上,考虑盘形制动器材料参数的温度特性,构建了制动器三维瞬态热-结构耦合有限元计算模型,获得了紧急制动过程中制动器的温度场/应力场分布情况,揭示了超深井提升机紧急制动过程中制动器瞬态温度场/应力场的分布规律。
Taking the braking system of ultra deep mine hoister as the research object, a virtual prototype model of braking system is es- tablished and the relationships between the rotation speed of brake disc and the time under different pressure were obtained, based on this, the material characteristics with temperature were considered too, a three dimensional transient finite element model of thermal - structure coupling was built, the distribution of temperature field and stress field of brake in emergency braking was acquired, also the distribution laws of temperature and stress field were revealed.
出处
《煤矿安全》
CAS
北大核心
2016年第11期226-229,共4页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2014CB049401,2014CB049402)
河南省基础与前沿技术研究计划资助项目(132300410001)
河南省高校科技创新团队支持计划资助项目(15IRTSTHN008)
关键词
超深井提升机
盘形制动器
紧急制动
热-结构耦合
有限元计算模型
ultra deep mine hoister
disc brake
emergency braking
thermal - structure coupling
finite element calculation model
