- 會議論文
國家地震工程研究中心低頻校正系統隔振工程與振動量測分析
Vibration Isolation and Measurement of Low Frequency Calibration System at National Center for Research on Earthquake Engineering
摘要
低頻校正系統以量測在低頻率（20Hz以下）使用的加速度感測器訊號為主，例如，地震用加速規(Seismic Accelerometer)。低頻訊號的量測極易遭受環境振動傳來之影響。本文說明以大質量塊隔振，降低來自地表面振動與激振器支撐結構的二次反應。再以一個細砂槽，形成一個承載體，將支撐結構體置於砂槽內。抑制結構體的響應(response)。振動量測結果顯示，在激振器平台上，振幅衰減97.3%，整體隔振工程已達減振與抑制響應的效果。
關鍵字
無資料並列摘要
The main purpose of the low frequency calibration system is to measure the low frequency (below 20Hz) signal of the accelerometer sensor, for example, a seismic accelerometer. The measurement of low frequency signal is highly affected by the environmental vibration. Vibration isolation via a big mass block reduces ground-surface vibration and the secondary reaction of support structure of the exciter. By using the sand as a base to form a carrier holds the support structure to reduce the response. The result of vibration measurement shows the amplitude of vibration reducing 97.3% at the plat form of the exciter. The purpose of vibration isolation and to reduce the response of the support structure are achieved.
並列關鍵字
無資料延伸閱讀
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