Development of procedures for determining the parameters of an aircraft servo actuator
Journal Title: Восточно-Европейский журнал передовых технологий - Year 2019, Vol 1, Issue 9
Abstract
<span lang="EN-US">Main trends in the use of electro-hydraulic actuators and requirements to parameters were discussed. Necessity of using automatic methods for testing an electro-hydraulic actuator together with the standard hardware of the electronic control unit was substantiated. The procedures for testing the control loop of an electro-hydraulic actuator set forth in this study make it possible to eliminate effects of mutual influence of dynamic and static characteristics of the actuator and hardware of the electronic control unit. Procedures for automatic identification of the actuator model and procedures for automatic determination of main parameters and characteristics of the actuator such as zero shift, dead space, amplitude-frequency, phase-frequency and speed characteristics have been proposed. When introducing the proposed procedures, the problem of processing high-speed characteristics of the actuator having high noisiness associated with the pulse nature of the derivative of the discrete signal of the actuator position (12 bits) was solved. In order to avoid introduction of errors in the waveform, in addition to standard digital filtering methods, it was proposed to approximate the noisy actuator characteristic by means of the Bezier curve. A procedure was proposed to record hysteresis of the speed characteristic by means of a cycle of continuous change of speed of movement of the output link of the actuator during the working stroke. The method for automatic identification of a simplified actuator model can significantly reduce labor costs in processing of experimental data. The parameters of the actuator model obtained for various deviations in parameters and various actuator operating conditions (external factors) can improve quality of synthesis of control algorithms</span>
Authors and Affiliations
Eugene Kononykhin
Experimental study into optimal interdependence of energy-time costs for emptying a dry dock
<p>The influence of discrete properties of the microprocessor control systems based on Arduino Due on the accuracy of the physical model of the dock pumping station by modeling in MATLAB was assessed. In this case, such...
Influence of grain processing products on the indicators of frozen milkprotein mixtures
<p class="a">This paper reports a study into the influence of manna groats and extruded manna groats on the qualitative and quantitative indicators of milk and protein concentrates over a freezing–defrosting cycle. A sli...
Contour milling programming technology for virtual basing on a CNC machine
A new technique and an application program for automating the programming of the milling operation during virtual basing of the workpiece on the CNC machine table is presented, when precise installation of the workpiece...
Research into the structural-mechanical properties of shortbread dough with oilseed meals
<p>This paper reports results of research into the application of oil-seed meal in the technology of flour-based confectionery products, specifically shortbread dough. We have investigated the structural-mechanical prope...
Study of low-emission multi-component cements with a high content of supplementary cementitious materials
<p>The studies have established the influence of various types of supplementary cementitious materials on physical and mechanical properties and structure formation of low-emission multi-component cements. The results of...