Vehicle exhaust system's dynamic testing arrangement

The utility model provides a vehicle exhaust system's dynamic testing arrangement, open including 6 -degree of freedom test bench 1, vehicle and stop analog system 2, blast pipe 10, independent linearity actuator 11, engine 8 and transmission shaft mounting fixture 6, engine 8 sets firmly on 6 -degree of freedom test bench 1, and transmission shaft mounting fixture 6 sets firmly engine output axle 9 on 6 -degree of freedom test bench 1, and the exhaust manifold sealing connection of blast pipe 10 and engine 8, 11 fixed stay blast pipes 10 of independent linearity actuator, vehicle open and stop state simulation system 2 and be connected with transmission shaft mounting fixture 6. The utility model discloses use the abundant cooperation of 6 -degree of freedom test bench and independent linearity actuator and use, ensured can be simultaneously to carry out dynamic simulation tests to blast pipe cold and hot both ends, also can simulate the special state of vehicle when starting and stopping to realize dynamic