Investigation and analysis of an accident caused by burst of engine compressor stage 4 disk flange 一起发动机压气机四级盘轮缘破裂导致事故的调查和分析
Pulleys are wheels with a groove around the edge , and belts are the rubber loops that fit in that groove 滑轮是轮缘有凹槽的轮子，皮带是可以放进这个凹槽的橡皮圈。
So when you spin one fast enough , it produces a buzzing sound through its grooves whereas the diabolo does not make sound 再者，空竹的轮缘上有气孔，旋转起来能发出嗡嗡的声音，而迪亚波罗是没有声音的。
The enterprise ronal gmbh has special knowledge within the ranges motor vehicle rims , truck wheels and light - alloy rims as well as light alloy wheels R gmbh是一家令客户满意的工业型企业，该企业生产杰出的轻金属轮辋、轮缘,轻金属轮。
Early favorable results led the metro to equip all trains on its line b - the newest line , and the line with the greatest flange wear - with the kelsan lcf system 早期令人满意的测试结果促使地铁公司在其最新的b线，也是轮缘磨损最厉害的线路上，将所有列车都安装了凯尔森的lcf系统。
The line structure light and optoelectronic image detecting method were used to measure the geometrical parameters of the flange . the most difficult detecting parameters were measured accurately 轮缘几何参数的测量是利用线结构光测量原理和光电图像检测方法检测，解决了轮缘厚度、踏面磨耗这一关键技术难点。
Calculation results illustrate that decreasing the blade hub - to - shroud loading level can increase the impeller adiabatic efficiency , and that aft - loaded impeller can obtain higher impeller adiabatic efficiency 计算结果表明，在一定范围内，降低叶片轮缘轮毂方向的负荷可以提高叶轮效率，后加载方式可以改善离心压气机叶轮性能。
After synthetically studying the effects of loading positions , rim thickness , circular pinion numbers and fillet radii of gear hob on root section stresses , a judging formula of plane stress and plane strain is proposed and verified , then 2d and 3d fem models are accurately established 系统探讨了加载位置、轮缘厚度、周向齿数的确定方法，分析了滚刀顶部圆角对齿根应力的影响，提出了两类平面问题的判据并予以验证。
Measuring parameters of wheel set is a necessary step for protecting transportation safety . but in our country , the measurement was done by using hands mostly . with the speedup of train , the current detecting methods could not meet the requirements of wheel maintenance 目前，我国铁路车辆轮缘几何参数、轮对尺寸参数和踏面缺陷参数测量大多还停留在手工阶段，特别是列车提速以后，现有检测方法已不能满足车辆段修的要求，需要研制一种较高精度和可靠性的轮对综合参数自动化检测系统。
Additional , by comparing with conventional bogie , it is discovered smaller lateral body acceleration , but sticks to one rail trends and high vvorn values because of guided by vvheel flange . it should be referred that these results are only useful to special simulation model of lrv with irws in this paper 此外，通过与常规转向架进行比较发现，独立旋转车轮车辆车体横向加速度较小，但有贴靠轨道一边行驶的倾向，且由于靠轮缘导向，使得独立旋转车轮转向架的整车磨耗比传统轮对转向架的略大一些。
