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  • 學位論文

排除人為誤差之全身振動測量技術開發

Development of Artifact Removal Techniques for Whole-body Vibration Measurement

指導教授 : 宋鵬程 陳協慶
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摘要


本研究提出新的資料分析方法,處理全身振動測量時遭遇人員離座及入座所產生之異常振動值。實驗分別在室內靜態的坐姿下以及實際機車騎乘的情況下進行,收集椅面上振動席盤的加速度訊號,過程中要求受測者持續坐於椅面上或進行離席/入座的動作,以比較人為誤差的大小及評估移除人為誤差方法之可行性。測量所獲之振動加速度訊號在未經及經過人為誤差移除之程序後,分別依據ISO 2631-1 (1997)與ISO 2631-5 (2004)規範計算頻率加權之加速度均方根值(root mean square, RMS)、振動劑量值(vibration dose value, VDV)以及脊椎之等量靜壓劑量值(equivalent static compression dose value, Se),並推算各指標8小時之日暴露量以及容許暴露時間。結果顯示人為離席/入座的動作會造成明顯的測量誤差,本研究所提出移除人為誤差移除之方法對移除靜態坐姿下的人為誤差有顯著的效果,而在實際路測情況下的效果並不顯著,未來有仍須針對本分析方法進一步探討如何選擇適當之分析參數,以移除實際路測所產生之人為誤差。

並列摘要


This study proposes a novel analysis method for removing artifacts caused by driver ingress or egress while measuring whole-body vibration. Whole-body vibration accelerations were collected from a seat pad placed on the seat under indoor sitting still and outdoor motorbike riding conditions with or without subject ingress or egress movements. Acquired acceleration signals going through and without going through artifact removal process were both analyzed according to ISO 2631-1 (1997) and ISO 2631-5 (2004) standards. Frequency-weighted root mean square acceleration (RMS), vibration dose value (VDV), and equivalent static compression dose value (Se) and their daily (8-hr) exposure value and allowable exposure period were calculated to verify the effect of artifact and the adequacy of artifact-removal technique. Analytical results show artifact can cause significant measurement error. The proposed technique can improve the measurement accuracy significantly under sitting still conditions. However, the technique has limited effect in removing artifact introduced during motorbike riding. Further investigation is needed to determine a set of satisfactory parameters for the analysis technique to remove possible artifact introduced under dynamic conditions.

參考文獻


1. 劉玉文,葉文裕,盧士一,「拖車司機振動暴露調查研究」,行政院勞工委員會安全衛生研究所季刊,第十卷第四期,第304-314頁,民國91年度報告(2002)。
2. 盧士一、張銘坤,「垃圾車駕駛人員之全身性振動暴露評估研究」,行政院勞工委員會勞工安全衛生研究所研究報告,台北,ISOH90-H306(2006)。
3. 江政宗,陳協慶,劉永平,「市區機車騎乘之全身性振動暴露」,碩士論文,朝陽科技大學工業工程與管理系研究所,台中(2010)。
5. Adams, M.A., Hutton, W.C., “Gradual disc prolapsed,” Spine, Vol. 10, pp.524-531 (1985).
6. Alem, N., “Application of the new ISO 2631-5 to health hazard assessment of repeated shocks in U.S. army vehicles,” Industrial Health, Vol. 43, pp.403-412 (2005).

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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