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本文重点介绍了美国进口MR─11型钢丝编织机的运转原理和结构特征,并对转子和梭子的磨损状况进行了分析,突出了大修转子和梭子是最经济、快速的方法。同时列出了大修前、后转子和梭子之间装配间隙的对比,并对该大修方法进行了简单的经济效益分析。最后指出了大修的不足为转子和梭子不能和原件互换。 相似文献
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With dexterous hands, robots can improve the work scope and work ability significantly. As palms of the existing multi-hand robots are made of steel plates that have small contact area, the robots cannot grab firmly. In this study, a new five-fingered dexterous robot hand is developed. Having flexible palm with 17 degree of freedoms ( DOFs), the hand can grasp more stably and firm- ly. First, the forward kinematics and inverse kinematics of the fingers and the hand are calculated. Then, the connection between the force exerting on the end effectors and the torque exerting on the joint is set up, laying the foundation for the following control. Finally, through the analysis and sim- ulation of the position, velocity and acceleration, the trajectory planning has a better performance. 相似文献
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固化残余应力对倒装焊器件热-机械可靠性的影响 总被引:1,自引:0,他引:1
采用底充胶的与固化过程相关的粘弹性力学模型,通过有限元仿真的方法,模拟了底充胶的整个固化过程,计算出了热循环加载下硅片、底充胶/硅片界面、底充胶内部的应力分布及其幅值大小。结果表明:底充胶的固化过程及由此产生的固化残余应力不但使得硅片中的最大垂直开裂应力位置偏离中心线达1.6 mm之多,而且还劣化了热循环加载下底充胶中应力幅值约6.25%。最后得出了固化残余应力对倒装焊器件热–机械可靠性的影响是不可忽略的结论。 相似文献
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