| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and lightweight triaxial vibration testing apparatus requiring no hydraulic pressure source and allowing easy maintenance and management. SOLUTION: The apparatus includes a common base 11, a vibrating table 10, and an X-direction exciter 20X, a Y-direction exciter 20Y and a Z-direction exciter 20 installed on the common base to impart vibrations in X, Y and Z directions to the vibrating table. Drive parts for the X-direction exciter, the Y-direction exciter and the Z-direction exciter are connected to the vibrating table via biaxial orthogonal linear motion bearings 30X, 30Y, 30Z each comprising a first linear motion bearing means enabling motion in the direction of one of axes and a second linear motion bearing means enabling motion in a direction perpendicular to the one axis, with the first and second bearing means stacked one above the other to enable a driven element to move in the directions of two mutually perpendicular axes.
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