The invention relates to a
thermal mechanical fatigue test
system and method for performing hollow
turbine blade superposed high-cycle vibration. The test
system comprises a high / low-cycle load loading subsystem, a
temperature load loading subsystem, a cooling subsystem and a load coordination control subsystem, wherein the high / low-cycle load loading subsystem is used for independently applying high / low-cycle loads to
turbine blades which are stably clamped by a special fixture; the
temperature load loading subsystem is used for heating assessment sections of the
turbine blades; the cooling subsystem comprises a
water cooling part and an
air cooling part; the
water cooling part is used for cooling in a test process; the
air cooling part is used for coordinating a temperature cycle in the test and simulating cooling conditions inside the blades; and the load coordination control subsystem is used for controlling each
system to operate in a coordinated manner. According to the test system disclosed by the invention, the
stress field, temperature field and vibration conditions in the assessment section
service process of the turbine blades and the cooling conditions inside the blades can be simulated, the
thermal mechanical fatigue test for superposed high-cycle vibration of the turbine blades is performed, and a guarantee is provided for safe and reliable operations of aircraft engines.