BASIC PRINCIPLES OF BUILDING, MAINTENANCE SERVICE AND DIAGNOSTICS OF REUSABLE LIQUID ROCKET ENGINE OF SPACE APPLICATION
In the course of work for the newly developed reusable LPRE, two main methods of technical operation were identified - technical exploitation of the resource and exploitation of the state. Formation of the scope of work on the control of the technical condition of the engine is determined at the stage of experimental construction work and is gradually reduced to a minimum level by the time the experimental construction work is completed. By the time the engine is put into operation, the list of operations on the control of the technical condition should be optimal and meet the minimum cost criterion. A list of typical work performed at the technical condition control on the engine in the interflight period is made. The structure of the engine diagnostics system and a schematic diagram of inter-trigger diagnostics are also given. In order to reduce the cost and timely determine the technical condition of the LPRE, a method for conducting functional diagnostics of LPRE based on the traditionally performed engineering analysis of telemetric information and based on the use of computer diagnostic programs in an automatic mode was compiled. An algorithm for detecting engine malfunction in the case of using the onboard equipment of the engine was developed. An example of determining the presence of a malfunction in the LPRE using this algorithm is given. The optimal technology for diagnosing LPRE was determined