MODERNIZATION OF THE PTK-MSB-2 PROGRAMM-TECHNICAL COMPLEX FOR AUTOMATION OF HELICOPTERS RESOURCE TESTING

Abstract

Today, Motor Sich JSC is developing its helicopter production. At the same time, great attention is paid to the creation of an infrastructure that should provide a full cycle of development and testing of new and modernized  helicopter assemblies. For resource testing of the power plant, the carrier system and transmission of the MSB-2 helicopter was created an open stand. To modernization the stand the program-technical complex PTK-MSB-2 was developed and implemented.

A general description of the composition and structure of the open rig for resource testing of the MSB-2 light helicopter is given. The rig equipment includes a control panel with helicopter remote control, power supplies, sensors and actuators, communication channels. The control panel allows performing all technological operations for start/stop of two AI-450M turboshaft engines, helicopter remote control along seven channels (using seven servo-amplifiers/servomotors). It is indicated that the main means of automation of the rig is the PTC-MSB-2 program-technical complex. The basic elements and principles of operation of the hardware of PTC-MSB-2 are described. PTC-MSB-2 hardware consists of two hierarchical levels: the lower and the upper. Lower level consists of the cabs of the communication device with the object. The upper level of the PTC is two workstations (WS1 and WS2) and matrix printer. The software tools of PTC-MSB-2, their main functions and features of functioning are considered in detail. It is noted that the Running the software components is possible when the individual measuring channels fail, and when the WS2 fails. At the same time, the functions of the failed components are terminated.

The goals of the modernization of the PTC-MSB-2 are listed, the principles for the implementation of algorithms for emergency protection and automation of helicopter resource testing are described. The chosen principle of automation of cyclic tests is based on the concepts of test mode, test cycle and test stage. There is a normal and emergency interruption of the test cycle. With a normal interruption, it is possible to resume the test stage from the next test cycle. The features of testing automation in regular and abnormal situations are briefly described.