Due to the status of the hydraulic support testing too heavy,the main function of the hydraulic powered support automatic in/out system of hydraulic powered support test rig is to make the hydraulic powered support automatically into the test rig.

Load-feedback scheme comparison in bench test of AC traction drive system and traction motor;

The results of bench test and service test for 3920 h in COSCO Guangzhou show that this oil has reliable quality and stability,and corresponding to the reference oils abroad.

Results of simulation evaluation and bench test showed that this oil has good detergent dispersing property,acid neutralization property and antiwear property,corresponding with the reference oil abroad.

The evaluation test benchs of hydraulic fluid and score principle are presented systematically,including some pump test benchs such as Vickers 104C,Denison T5D,Denison P 46,Sundstrand 22,Vickers 35VQ25,Denison T6C,Vickers 20VQ5.

This paper deals with present test benchs at home and abroad about the evaluation test of anti-wear hydraulic oils,including four-ball wear tester,γ wear tester,vane/piston pump standard test benchs,radioactive trace technology wear tester.

The test bench for engine thermal management system was built up by simulating the engine installation and application conditions like the water tank,the fan,the engine layout,the accessory and the pipe connection in the whole vehicle.

This relation can be tested through rig test which is performed with standard PDC test bit.

It is necessary to carry out reliability rig test of automatic load system prototype so as to deal with fault problems such as cartridge jamming and failure to feed in reliability rig test.