Research on Brake Starting Test of Turboshaft Engine Bench
Rotor brake starting is a unique starting method for turboshaft engines.In order to reduce the risk of in-stallation testing,it is necessary to simulate the brake starting of turboshaft engines on a test bench.This article intro-duces the principle of brake starting for turboshaft engines,provides a simulation test method for brake starting of turboshaft engines under bench conditions,and proves the feasibility of the test method.The test results show that turboshaft engines can simulate helicopter rotor brake starting on the bench;Compared with normal starting,brake starting can accelerate the power turbine speed to a slow state in a short period of time during the starting phase,but the helicopter transmission system needs to bear a larger load.
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