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  • 學位論文

安全帶與墜落姿勢對人體加速度之影響

Effects of Safety Belt and Falling Posture on Body Accelerations

指導教授 : 陳協慶

摘要


本研究目的在於了解不同的墜落方式與安全護具對人體之影響。研究於「墜落實驗平台」上,使用荷重元及三軸加速度計,分別測量人偶使用2種安全帶(背負式、繫身式)在2種墜落條件(踏空墜落、後仰墜落)下,1.5m墜落過程之繩索張力、軀幹加速度。實驗結果顯示不同墜落情境與安全帶之組合,會明顯影響繩索張力及軀幹之運動,在背負式踏空墜落組合下產生最大繩索張力與人體加速度峰值,相較之下繫身式安全帶有較小的繩索張力與較大的擺盪。在後仰墜落狀況下,最大繩索張力明顯低於踏空墜落,但造成人偶有較大的身體擺盪及旋轉,以至造成其肢體與實驗平台結構體間之碰撞。本研究結果可提供相關人員作為個人安全防護具選用之參考。

關鍵字

墜落 姿勢 安全帶 物理量測

並列摘要


This study investigates the effects of falling condition and safety device on a human body. Researchers employed a load cell and an tri-axial accelerometer to measure rope tension and trunk accelerations of a falling dummy with an 1.5m dropping distance. Four testing conditions combined with 2 safety devices, a full body harness and a half waist safety belt, and 2 falling conditions, fall form floor opening or backward topple, were conducted on a platform for fall experiment. Experimental results show different fall combination significantly affect safety-rope tension and dummy movement. The combination of full body harness and fall form floor opening condition results in the greatest peak rope tension and trunk acceleration. Comparatively, a half waist safety belt produces less peak rope tension but greater swing movement. The peak rope tension measured under fall form backward topple condition is significantly smaller than that measured under fall form floor opening. Nevertheless, fall form backward topple condition causes greater dummy swing and rotation and results in collisions of dummy and platform structure. Finding of this study provides related professionals with useful information of personal safety device for working at heights.

並列關鍵字

Fall posture safety belt mechanical measurement

參考文獻


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被引用紀錄


林家緯(2014)。地工泡棉(EPS)於墜落及噪音防制之可行性探討〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0006-0708201413085300

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