| 摘要 |
PROBLEM TO BE SOLVED: To provide a test body reaction force estimating device capable of estimating reaction force of a testing body, based on known data such as vibration table oscillation force, without measuring directly a reaction force value of the test body. SOLUTION: Coordinates are transformed from a vibration table coordinate system into an absolute coordinate system, as to the oscillation force of an oscillator 3 for oscillating a vibration table 2, the oscillation force applied onto the vibration table 2 is found based thereon, inertia force of the vibration table 2 is found from a mass and an acceleration of the vibration table 2, and the reaction force from a test body model 1 laid on the vibration table 2 is estimated based on a difference between the found oscillation force applied onto the vibration table 2 and the inertia force of the vibration table 2. COPYRIGHT: (C)2006,JPO&NCIPI
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