IMPACT EXCITATION TEST DEVICE, IMPACT EXCITATION TEST METHOD, AND IMPACT EXCITATION TEST PROGRAM

• Main Authors: FUJIMOTO HIDEKI, SABURI SEIJI
• Format: Patent
• Language: English; Japanese
• Published: 11.01.2023
• Subjects: MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

To appropriately and efficiently conduct a test to apply impact acceleration to a test piece.SOLUTION: An impact excitation test device comprises: an excitation table on which a test piece is mounted; a driving unit that drives the excitation table to apply acceleration to the test piece; and a control unit that controls the driving unit so that the test piece is applied with the acceleration indicated by a time history waveform including a shock pulse wave and adjustment excitation waves arranged temporally before and after the shock pulse wave. The control unit generates the time history waveform such that a total value of time integration values of the shock pulse wave and the adjustment excitation waves becomes 0 and a period of the adjustment excitation waves becomes 10 times or more a period of the shock pulse wave.SELECTED DRAWING: Figure 2 【課題】試験体に衝撃加速度を加える試験を適切かつ効率的に行う。【解決手段】衝撃加振試験装置は、試験体を載置する加振テーブルと、前記加振テーブルを駆動して前記試験体に加速度を加える駆動部と、衝撃パルス波と前記衝撃パルス波に対して時間的に前及び後にそれぞれ配置される調整加振波とを含む時刻歴波形で示される加速度が前記試験体に加えられるように前記駆動部を制御する制御部とを備え、前記制御部は、前記衝撃パルス波及び前記調整加振波の時間積分値の合計値が０となり、かつ、前記調整加振波の期間が前記衝撃パルス波の期間の１０倍以上となるように前記時刻歴波形を生成する。【選択図】図２