The complex aerodynamic, thermal, structural and control phenomena inside the aero-turbine engine determine its research and development has long been an iterative process of design, manufacturing, testing, failure and modification of the design. Practice has proved that without enough test equipment and a lot of experimental work, it is impossible to develop an engine.
Statistics show that the development of an engine requires 20000h of the whole ground test and 5000h flight test and 100000h parts test. Although the amount of experimental work has decreased in recent years due to the development of computer technology and numerical calculation methods, it cannot replace the test. Advances in aero engine technology continue to place new demands on test technology and test equipment.
The following will analyze the evolution of test technology and test equipment construction with the development of aero engine technology and test requirements. The first phase focuses on performance testing. A batch of component testers and high-altitude simulation tests are completed. This phase begins with the initial stage of the aviation turbine engine. Around 1960, a batch of M-turbojet engines with M number 2 or more were successfully developed. .
The invention of the turbojet engine was a long-term process of trial-and-error on the prototype. The British turbojet engine inventor Whittle started to develop a new engine W2 in 1940, and there was no component testing equipment at all. The average life of the initial turbojet engine was only 10 h. It is conceivable that the main goal of the development test during this period was to obtain performance. Later, in terms of equipment construction, he learned the lessons of insufficient parts testing in early engine development, and built a number of component testing equipment in research centers and companies in some countries.
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