变幅机构 meaning in English
amplitude changing device
derricking gear
luffer
luffing mechanism
Examples
- Reasonable determination of three pin - connected joints of truck crane
汽车起重机变幅机构三铰点的合理确定 - The mentioned method is applied to design of pulley block compensation in luffing mechanism and the results show that the method is feasible and effective
在滑轮组补偿变幅机构稳健优化设计中加以运用，结果表明该方法是有效的和可行的。 - The fuzzy optimization mathematical model is built with the optimization target of minimizing the volume of tooth corona of worm gear in luffing mechanism of tower crane
摘要以塔式起重机变幅机构中蜗轮齿冠体积最小为优化目标，建立了模糊优化设计的数学模型。 - According to the technological data of the large lorry crane ' s pictures in foreign countries , we use the method of photo - view anti - processing , gain the luffing mechanism ' s structural measure parameter
摘要根据国外大型随车起重机的图片等技术资料，运用影像反求图解的方法，得出其变幅机构的近似尺寸。 - Combining the design of portal crane luffing mechanism , this paper set up the math model independently and synthetically of the single boom system with compensating pulley and level - balancing weight . use genetic algorithms to optimize the model , the calculated results show as follows the genetic algorithms is effective and manipulable , the synthetically optimize is best than independently optimize . the optimization program of luffing mechanism was build , and this will be a useful tool in the design of crane
结合门座起重机变幅机构的设计，建立了导向滑轮补偿系统和杠杆? ?活对重臂架自重平衡系统独立模型和综合模型的未平衡力矩最小的优化问题，结合遗传算法对它进行了优化，结果证实了该算法的有效性和可行性，表明了综合优化比独立优化更能提高优化的准确性。