摘要
液压系统广泛应用于各个工程制造之中。弹性模量是液压油的一个重要物理参数,精确地测量油液的弹性模量值和变化规律。对液压系统在工业中的发展具有十分重要的意义。本文通过对油液弹性模量随压强变化的规律进行研究,建立了基于误差补偿的油液弹性模量随压强变化预测模型。利用某油液弹性模量和压强关系数据,将基于误差补偿的油液弹性模量随压强变化预测模型和油液弹性模量随压强变化预测模型进行预测结果误差比较分析,进一步验证了模型的有效性和精确性。再利用该模型对弹性模量随压强变化数据进行预测分析,通过计算机模拟仿真实现,结果表明,弹性模量随压强的增加而呈现增加的趋势。并且增速越来越大。本文所建立的模型能够较好地拟合和预测数据的变化,精准地获取了弹性模量随压强的变化值。为液压系统液压油的应用和研究提供了理论依据。
Hydraulic systems are widely used in various engineering manufacturing. Elastic modulus is an important physical parameter of hydraulic oil, which accurately measures the elastic modulus and variation of oil. It is of great significance to the development of hydraulic systems in the industry. In this paper, the law of oil elastic modulus with pressure change is studied, and the prediction model of oil elastic modulus with pressure change based on error compensation is established. Based on the relationship between the elastic modulus and pressure of a certain oil, the prediction model of the oil elastic modulus based on the error compensation and the prediction model of the oil elastic modulus with the pressure change prediction model are compared and analyzed, and effectiveness and accuracy of the model are further verified. The model is used to predict and analyze the elastic modulus with pressure change data, and the simulation results show that the elastic modulus increases with the increase of pressure. And the growth rate is getting bigger and bigger. The model established in this paper can better fit and predict the change of data, and accurately obtain the change of elastic modulus with pressure. It provides a theoretical basis for the application and research of hydraulic system hydraulic oil.
出处
《建模与仿真》
2019年第4期170-177,共8页
Modeling and Simulation
基金
西南科技大学大学生创新基金项目(项目编号:CX19-061)。
