FIELD: test equipment. SUBSTANCE: device 1 provides, for example, testing under working conditions exhaust tube 2 linked to motor vehicle internal combustion engine 3 connected with muffler 4, when engine is out of operation. The noted members 2, 3 and 4 are installed on base 6 using elastic hanger 7. Vibration exciter 8 is initiated by high speed engine 9 connected to vibration exciter through flexible shaft 10. The device has system 11 to feed and circulate oil, and system 41 to feed hot gas or air in the exhaust system. EFFECT: accurate modeling of operating conditions. 7 cl, 4 dwg
