| 摘要 |
A vibration simulation apparatus is provided to couple an elastic member to the exterior of a piston rod so as to prevent generation of irregular vibrations due to collision of a piston with the inner wall of a cylinder. A vibration simulation apparatus includes a support frame, a cylinder mechanism(20), a test bed, and a cylinder drive part. The cylinder mechanism is connected to the support frame at its one end. The test bead is connected to the other end of the cylinder mechanism to fix a product to be tested. The cylinder drive part is connected to the cylinder mechanism to resiliently drive the cylinder mechanism. The cylinder mechanism includes a cylinder(21), a piston(22), and a piston rod(23). The cylinder has first and second air ports(21a,21b). The piston divides the inner space of the cylinder into first and second chambers(21c,21d). The piston rod is connected to the piston and extends out of the cylinder. An elastic member(50) is provided to prevent the piston rod from colliding with the inner wall of the cylinder.
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