过去十年中,流体静力学作为液压传动基本原理的应用已经引起机械设计的变革。五十年代澳大利亚液压公司首次在实际应用中利用流体静力学原理进行机械设计。早期的液压传动装置由于价格昂贵、可靠性差、重量大以及设计中存在的一些缺点,推广缓慢。五十年代末,美国桑兹川德(Sundsra-nd)公司研制了一系列适于机动工程车辆用的液压传动系统并在这方面处于世界领先地位。 In the past decade, the application of hydrostatics as a fundamental principle of hydraulics has revolutionized mechanical design. For the first time in the fifties, Australian hydraulic companies used hydrostatic principles for mechanical design in practical applications. Early hydraulic actuators were slow to promote due to their high cost, poor reliability, heavy weight, and a few shortcomings in their design. In the late fifties, Sundsra-nd Company of the United States developed a series of hydraulic transmission systems for mobile engineering vehicles and is a world leader in this field.