静液传动系统数学模型和系数计算方法

• 作 者: 卢醒庸
• 机 构: 上海第二工业大学,
• 出 处: 液压工业
• 发表日期: 1988年01期
• 关键词: 传动系统 数学模型 模型系数 常系数 物理现象 意义含混 油马达 系数模型 线性系数 精度

引言常见的静液传动系统数学模型都是基于Wilson理论的系数模型。所以这些模型的精度主要取决于模型系数与实际物理现象的一致性与系数计算方法的精确性。实验表明这些模型系数如Cs、Cd和Cf等均随工作条件有较大变化,因而采用常系数或线性系数的模型必然精度较低。为了改善精度就必须引入一些物理意义含混的附加项。MaCandlish等

Introduction Common hydrostatic drive mathematical models are based on the Wilson theory of the coefficient model. Therefore, the accuracy of these models depends mainly on the consistency of the model coefficients with the actual physical phenomena and the accuracy of the coefficient calculation method. Experiments show that the coefficients of these models such as Cs, Cd and Cf all have great changes with the working conditions. Therefore, the model with constant coefficient or linear coefficient has lower inevitability. In order to improve the accuracy, we must introduce some additional items of mixed physical meaning. MaCandlish and so on