| 摘要 |
PURPOSE:To attain the improvement of safety in case when a test is executed, and to select freely a range of a test condition in accordance with a purpose of test by limiting a moving direction of a thrust device. CONSTITUTION:A thrust device 4 contains powder, rocket, etc., and also it is provided so that a thrust load part 4b contacts to the other end part 1b of a testing pipe 1. Also, a stopping device 5 is provided so as to be opposed to the thrust device 4, on the side opposite to a propulasion direction X of a thrust generated by the thrust device 4. A large thrust is generated in a short time by a combustion of the powder of the thrust device 4. Therefore, by its reaction, the thrust device 4 runs on a guide rail 3 in the direction Y opposite to the propulasion direction X, and stops when its collar 4a contacts to the stopping device 5, and simultaneously, the testing pipe 1 is plastically deformed remarkably. In this way, a movement of the thrust device 4 is limited on the guide rail 3, and the stopping device 5 is installed on the guide rail 3, therefore, there is no possibility that the thrust device 4 moves excessively. |
