IMPROVEMENTS IN OR RELATING TO TEST APPARATUS

摘要

The figure shows pulse generation apparatus (1) including a impactor bar (2) that can be pre-loaded in a direction reverse to arrow (A) by hydraulic actuator (3). Bolt (6) is exploded whilst the impactor bar (2) is pre-loaded thus releasing said bar into impact with the front end of bus (B), generating a compression wave of known characteristics through the bus structure to simulate a crash scenario. Transducer bars (8, 9) are arranged to take measurements from critical points of the bus structure.