Визначення взаємного впливу сепаратних каналів гідропривода стабілометра

Abstract

The mathematical model of a hydraulic drive of the triaxial test apparatus with the purpose of obtaining analytical dependences for definition of mutual influence of separate channels hydraulic installation of three- axle loading on the attained the pressure of working fluid in the working chambers of the executive hydraulic cylinders. Set the parameters of the hydraulic drive and the sample of the soil, which have a direct impact on the accuracy of control in a dynamic test of the samples. In the steady state transfer function between the pressure in the working cavity of the cylinder of one channel loading and speed of change of the pressure channel loading is determined by the coefficient, which takes into account the parameters of the test sample of the soil, the attitude of the stiffness coefficient of the mechanical characteristics of the hydraulic drive to the work of the coefficients of elastic reaction of the soil sample on the main and adjacent axes of loading, and also takes into account the ratio of amplification coefficients of electro-hydraulic amplifier and a transfer factor correction device.