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基于AMESim的运动平台液压系统压力跃变分析
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    摘要:

    运动平台广泛用于磨床、刨床、振动台等液压设备中,通常采用单出杆液压缸,当系统换向时,存在换向压力冲击和油缸的压力跃变。目前针对这些问题的解决措施主要有:缓冲油缸、先释压后换向、采用蓄能器吸收压力冲击、或将单出杆缸改为双出杆缸的方法。针对运动平台因为非对称液压缸的使用而引起的系统震动问题,提出了差动缸控制方案和双阀控制方案。并利用AMESim建立系统液压模型进行仿真。结果表明,两种方案可以很好地解决换向冲击和压力跃变问题。

    Abstract:

    Motion platform is widely used in hydraulic equipments like grinding machine, planning machine, vibration table and etc. Asymmetric hydraulic cylinder was usually used in these equipments, when the system changed direction of movement, there was reversing pressure impact and cylinder pressure jump. At present, aiming at these problems the main solutions were the methods of using buffer oil cylinder, changing the direction after release the pressure first, using the accumulator to absorb pressure impact, and changing asymmetric hydraulic cylinder to symmetric hydraulic cylinder. Aimed at the problem of system shake in motion platform caused by using of asymmetric hydraulic cylinder, the schemes of using differential cylinder and two-valve-controlled asymmetric hydraulic cylinder were put forward. Then the model of hydraulic system was built and simulated with using of AMESim software. The results show that two schemes can well solve the problems of reversing pressure impact and pressure jump.

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郭吉昌,吴勇,杨喜晶.基于AMESim的运动平台液压系统压力跃变分析[J].机床与液压,2014,42(17):164-166.
.[J]. Machine Tool & Hydraulics,2014,42(17):164-166

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  • 在线发布日期: 2015-01-28
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