No abstract

As a rocket engine for thrust vector control system of high reliability and redundancy, high precision, and the requirements of lightweight, servo system for test system can quickly test a certain level and fast data processing of the test location, transient, and frequency characteristic indexes, a rocket motor thrust vector control system using GLINK as control bus. Moreover, the first level servo is an all-in-one machine with four drives and controls, so the test system is required to have the ability to control and test four actuators simultaneously under the GLINK main line. This paper discusses the hardware knowledge of the test system based on the GLINK bus: GLINK bus technology, communication topology of GLINK station card and network card; software function of the test system; multi-axis synchronous test function, and synchronous data processing function developed by LabVIEW.

The drawing cushion of press line in the press workshop of the whole car factory has been extensively upgraded from air cushion to hydraulic drawing cushion. The hydraulic drawing cushion is more accurate than the drawing force of the air cushion, however, the hydraulic drawing cushion is a complex of mechanical, hydraulic, Motion Control and detection technology, and coupled with the press, which makes the fault diagnosis of the hydraulic drawing cushion more difficult. This paper mainly introduces the problems of the coordination among the three systems of mechanical, hydraulic and electronic control of Rexroth Company’s servo-hydraulic drawing cushion and its intelligent fault diagnosis method.