In the light of field experiments and research, the main causes of the frequent raptures of the drive link joints in elevating table for section mill are discovered to be the serious unbalanced stress of the link joints and too large fall of the oil pressure in balancing actuator during elevation and subsidence.
通过对某厂型钢轧机摆动升降台传动链板断裂原因的试验研究,找出其断裂频繁的主要原因是在升降过程中平衡油缸油压下降过大和各链板受力严重不均。
The effect on the swaying speed caused by the swaying of the arm in the technology of push and pull in Ping-Pong;
乒乓球拉攻技术中手臂的摆动对摆速的影响
According to the actual lifting conditions in deep sea mining, a lifting test system simulating lifting pipe's heaving, swaying and inclination was set up.
结合深海开采扬矿应用条件建立了模拟扬矿管升沉、摆动和倾斜的提升试验系统 ,进行了较大摆幅和较宽频率范围的试验 ,获得了比较全面的试验数据 ,建立了计算模型。
Based on the study of the woodworking band saw machine's process characteristics,the natural frequencies of the worktable and the structural system of saw blade and the lateral swing quantity of saw blade by cutting the China fir under the same condition were tested under the condition of the constant tension force of the saw blade and feed speed of MJ397 high speed woodwork band saw machine.
基于对木工带锯机加工特性的研究需要,本文在MJ397型高速木工带锯机的锯条张紧力和进给速度恒定的情况下,通过实测锯机工作台和锯条结构系统的固有频率、同条件下锯割杉木试材时的锯条横向摆动量、变频器调节锯轮转速和锯材表面粗糙度等,分析锯轮转速、锯条横向摆动量与锯解精度的关系,为优化国产带锯机锯割稳定性等设计工作提供依据。
The multi-story packing rubbers in combined isolation structure system may cause the upper layers of the isolated structure to produce swing motion, which will influence the vibration-control of isolated structures and their combined structure .
组合隔震结构体系中,当基础隔震体上部结构层间刚度相对较小、垂直荷载较大,且其采用的叠层橡胶垫的橡胶总厚度较大时,隔震支座不仅会产生水平变形,同时也会产生竖向变形,导致上部结构产生摆动,而这种摆动可能对隔震体本身及联接体的振动控制产生影响。
The model of horizontal translation and swing in base-isolated structures is analysed,the horizontal & swing structure s vibration equation is infered under the seismic function,and the Matlab programming is applied to carry on the computer simulation analysis.
上部结构层间刚度相对较小、垂直荷载也较大的多层框架结构,其所采用的多层橡胶垫的橡胶总厚度较大,可能产生明显的竖向变形,因而导致结构摆动。
The horizontal position deviation of the payload to the trolley evaluated from the payload oscillation angle is multiplied by the self-adaptive feedback gain to modify the reference input,thus a reasonable damping is exerted on the system to effectively suppress the swing.
为了抑制起重机的载荷摆动,提出了一种新型位置补偿消摆控制策略。
Use the Gill method to evaluate the movement of a body, which is in oscillation and vibration at the same time.
用该方法求解同时参与摆动和振动的物体的运动，并给出几个典型实例。
Modeling and numerical simulation of oscillation phenomenon of single-crystal growth furnace rotating-lifting system is studied.
针对单晶炉旋转提拉系统在运行中出现的摆动现象进行了建模和数值仿真。
The author thinks the skills of crooked juggling should beemphasized and the exercises of swinging should be paid attention to in sprint ai weu.
通过查阅资料，对短跑技术进行再认识，认为在短跑技术中应强调采用屈蹬技术和重视摆动动
From analysis on features and function of swinging leg technic in the taking-off skill, it is discovered that: in the time of taking-off bounce, swinging leg at the back of body folding swings forward and quickly moves forward.
通过对跳跃起跳时的摆腿技术特点与作用分析 ,得出 :跳跃起跳时 ,摆动腿在体后作折叠向前摆动过程中 ,摆动腿的整个环节重心作水平方向加速向前运动 ;在起跳腿蹬伸时所产生的垂直分力等于人体重力时相才需要摆动腿制动 ,达到减小人体作垂直方向运动的阻力 ,提高人体作垂直方向惯性运动的高度。
The function of forward-leaning leaving board and swinging of the swinging leg on takeoffs in long jump;
跳远前倾式离板和摆动腿的摆动对起跳的作用