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以方便针弯针自动检测机运动方案的创新设计为例,介绍了一种在对预期功能进行分析和分解的基础上,对机械运动方案进行创新设计的方法。 相似文献
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针对机构学中常用的空间串联机构,用D-H齐次坐标变换建立了六自由度为代表的空间串联机构的运动空间方程,利用机械系统动力学自动分析软件ADAMS建立了二至六自由度空间串联机构的虚拟样机模型,基于虚拟样机技术,对二至六自由度空间串联机构运动空间进行了系统地仿真与分析。研究发现运动空间的形状与自由度的个数和杆的长度有着密切的关系,当自由度达到3个及以上时,不合理的杆长组合会在运动空间中形成盲区,满足一定的条件就可以消除盲区。 相似文献
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This paper investigates the optimal selection of processing parameters for motion table performance. The main objective of the mechanism of a one-axis servo motor table is to avoid vibration, thereby reducing experimental error. This experimental controller uses a grey-based Taguchi method to make a quality evaluation of three table characteristics; displacement, arriving time, and torsion. It is shown that the multiple response performance characteristics are greatly improved through this study. 相似文献
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Dynamic analysis of a linear motion guide having rolling elements for precision positioning devices 总被引:1,自引:0,他引:1
Yi Yong-Sub Yoon Young Kim Jae Seok Choi Jeonghoon Yoo Dong Jin Lee Suk Won Lee Sung Jin Lee 《Journal of Mechanical Science and Technology》2008,22(1):50-60
Linear motion (LM) guides supported by rolling elements can be used to ultra-accurately position precision machines. For accurate
positioning, the micro and macro dynamic behavior of the LM guide must be understood, but the research on this subject is
rather limited. In this investigation, experiments to reveal the dynamic characteristics of the LM guide were performed and
a simplified model to predict the observed dynamics of the LM guide was developed. Several experiments conducted in the present
research demonstrated the hysteretic behavior as well as frequency-and force-dependent phenomena of the LM guide. The validity
of the proposed modeling method was checked with theoretical and numerical analyses. 相似文献
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通过调查统计,确定以松靴故障作为工程机械轴向柱塞泵车载故障诊断装置的诊断目标.经过分析讨论,将油液的温度信号作为特征信号,以单片机作为工程机械上轴向柱塞泵松靴故障诊断报警装置的控制核心,并对报警装置中软硬件设计作了简要介绍。 相似文献