汽車安全氣囊感測系統模組受衝擊負荷之系統反應研究

Study of the System Response under Impulsive Excitation to an Automobile SRS Sensing Module

張一屏(I-Ping Chang) ； 楚安宇(Ann-Yue Chu)

《中華民國振動與噪音工程學會論文集》 1998 (1998/05) Pp. 145-152

https://doi.org/10.30028/CSSVANNUAL.199805.0145

摘要

本研究為汽車安全氣囊感測系統模組設計完成前，針對其系統套件與安裝盒組所建立之測試驗證。以確認其系統輸出與反應。本測試研究以激振器配合其功率放大器，經由函數產生器產生之脈衡訊號。激振研製之汽車安全氣囊感測系統模組。由力規及加速規兩量測之時域訊號，經快速富利葉轉換，計算其自頻譜及互頻譜，再經反富氏轉換回時域之自相關及互相關函數、相通函數、訊噪比、頻率響應函數、脈衝響應函數。此研究所測試計算之資料可供設計汽車安全氣囊感測系統模組結構及組裝之參考以協助系統整合。

關鍵字

汽車安全氣囊感測系統測試 ； 模態測試

並列摘要

This study is the validation test setup for identifying the SRS sensing module component and package system response. The study is based on the modal testing and the module was tested by shaker excited with impulse signals provided by a function generator. The force transducer and accelerometer was attached to the stinger input and output of the SRS sensing module in same direction respectively. The data was analyzed by a spectrum analyzer to establish its frequency dormain and time dormain characteristics. Information of system auto and cross spectrum, auto and cross correlation. coherent function, signal to noise ratio, frequency response and impulse response was established to help the study and arrangement of the module components. The information also provide the necessary resonant characteristics to help the system integration of the SRS sensing module with other automobile components and structures.

並列關鍵字

SRS Sensing Module Impact Test ； Modal Testing