Method for testing strength of welded joint i.e. tube-pot transition, of exhaust system in motor vehicle, involves inducing unbalanced mass circularly around line, and performing oscillating movement of tube relative to pot of silencer

摘要

The method involves connecting a tube (5) with a hot gas tube (3) against each other about a common central line (7), where an unbalanced mass (8) is induced around the center line in a circular manner. A bending oscillating movement of the tube is performed relative to a pot of a silencer (4). The movement of the unbalanced mass is made by a pliable shaft (9), where movement of the shaft is driven by an electromotor (10). A transmission of the pliable shaft on the silencer is taken place through a ball bearing (11). Inner and outer rings of the tube are moved by the pliable shaft.