Improving the quality of testing of hydralic equipment on a specialized measuring stand

Improving the quality of testing of electro-hydraulic equipment is associated with the development of measures to reduce the levels of the stands own noise, increasing the stability of the operation of hydraulic systems by increasing the degree of test automation and maintaining the stability of the operating parameters of the test bench’s hydraulic systems.

Stands for control of noise and vibration of electro-hydraulic equipment are quite complex engineering structures which include pumps, control valves and the pipelines themselves with fittings. To be able to obtain reliable data during bench testing, it is necessary to take all possible measures to reduce the levels of acoustic interference from operating bench mechanisms to values much lower than the levels of acoustic disturbance created by a working controlled hydraulic device.

The comprehensive automation system for testing processes is designed to automate the installation and maintenance of modes, measurement processes and processing of the results obtained. It includes a system of setting and maintaining modes, as well as a vibration measuring complex.

The system for setting and maintaining modes allows you to remotely control the following processes from control panels installed at the measuring sections included in the bench installations:

• automated installation of parameters flow of working fluid and pressure in the lines of the stand;
• turning on and off pumping units;
• changing the rotation speed of electric drives of pumping units;
• operation of shut-off and control valves.

In the process of improving the stand, an original method of programmatic control of setting and maintaining the parameters of the working environment was developed and implemented. The use of this method makes it possible to minimize vibration and noise levels from the equipment and regulatory bodies of the stand by optimizing the combination of their operating parameters.