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研究生:劉立文
研究生(外文):Li-Wen Liu
論文名稱:地板與鞋底紋路設計對鞋底與地板間抗滑性之影響
論文名稱(外文):Effects of Tread Groove Design of Floor and Shoe Sole on the Slip Resistance at Footwear-Floor Interface
指導教授:林久翔林久翔引用關係李永輝李永輝引用關係
指導教授(外文):Chiuhsiang Joe LinYung-Hui Lee
口試委員:林久翔李永輝
口試委員(外文):Chiuhsiang Joe LinYung-Hui Lee
口試日期:2013-10-04
學位類別:博士
校院名稱:國立臺灣科技大學
系所名稱:工業管理系
學門:商業及管理學門
學類:其他商業及管理學類
論文種類:學術論文
論文出版年:2014
畢業學年度:102
語文別:英文
論文頁數:65
中文關鍵詞:滑倒摩擦係數步態鞋地介面紋路
外文關鍵詞:slips and fallscoefficient of frictiongaitshoe-floor interfacetread
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滑倒是生活與職場中常見的意外,影響滑倒的因素包含鞋底、地板、步態等。鞋底和地板的抗滑性是影響滑倒風險的主要因素。鞋底的紋路設計、地板上的污染物、及地面的坡度都會影響鞋底與地板間的抗滑性,步態平衡也會影響滑倒產生的可能。本研究以地板抗滑性量測與步態實驗來探討鞋材與地板紋路設計對滑倒風險之影響。
地板抗滑性量測是在不同鞋材、地板、地面污染、與地表坡度的狀況下,以不同紋路之鞋材於不同紋路地板上以Brungraber Mark II摩擦係數量測器來測量地板抗滑性。結果顯示,鞋材、地板、地面污染、與地面坡度等四個因子對於地板摩擦係數的影響的均達顯著水準(p<0.0001)。在濕地板上,無紋鞋材的摩擦係數值顯著的高於有紋路的鞋材。但是在油地板上,無紋路鞋材跟無紋路地板的摩擦係數值最低。不論在溼地板或油地板上,具有與摩擦測試方向垂直紋路的地板,摩擦係數值最高。
步態實驗則以兩種不同紋路鞋底與三種不同紋路地板進行。受測者在測試步道上行走並踏過塗甘油之地板區域,並記錄受測者腳在地板之滑動狀態。研究發現當鞋底與地板都具有與行進方向垂直的紋路時的地板摩擦係數最大、腳踏上地板時滑行距離最短、受測者的滑倒百分比最低;當鞋底與地板都具有與行進方向平行的紋路時地板摩擦係數最小、腳踏上地板時滑行距離最長、受測者滑倒的百分比最高。
Slip and fall incidents are common both at work and in our daily life. The slip resistance between shoe sole and floor are the primary factor affecting the risk of slip and fall. Tread groove pattern on the shoe sole, contaminant on the floor, and slope of floor surface could all affect the slip resistance between shoe sole and floor. Balance of gait affects coefficient of friction at the footwear and floor interface. This study investigates the effects of tread grooves of both shoe sole and floor on the risk of slip and fall.
Friction measurements were conducted to study the effects of shoe sole material, floor, contamination, and slope of the floor surface on the slip resistance of floor using the Brungraber Mark II slipmeter. The results showed that shoe sole material, floor, floor contamination, and slope of floor all affected the slip resistance of floor significantly (p<0.0001). On wet surfaces, the slip resistances of flat shoe soles were significantly higher than those of the treaded shoe soles. On oily surfaces, the flat shoe sole and flat floor combination had the lowest slip resistance. On both wet and oily surfaces, floors with tread grooves perpendicular to measurement direction had the highest slip resistance.
A gait experiment was conducted under two shoe sole tread designs and three floor profile conditions. The subject walked on a walkway and stepped on a glycerol contaminated surface. The foot sliding condition was recorded. It was found that the friction coefficient at footwear-floor interface was the highest when both the shoe sole and floor had treads perpendicular to the walking direction. This condition was associated with short slip distance of the foot, and low slip percentage. The friction coefficient at footwear-floor interface was the lowest when both the shoe sole and floor had treads parallel to the walking direction. This condition was associated with long slip distance of the foot, and high slip percentage.
中文摘要 I
Abstract II
誌謝 III
Contents IV
List of Figs VI
List of Tables VII
Chapter 1. Introduction 1
1.1 Study Motivation 1
1.2 Study Framework and Objectives 2
1.3 Study Limitataions 3
Chapter 2. Literature Review 4
2.1 Friction and slip 4
2.2 Friction measurement devices 7
2.3 Roughness and contaminant on the surface of shoe sole and floor 9
2.4 Slip Gait factors 14
Chapter 3. Friction Measurement 21
3.1 Method 21
3.1.1 Slipmeter 21
3.1.2 Inclined angle of the floors 22
3.1.3 Floors, footwear, and contamination conditions 22
3.1.4 Experimental design and statistical analyses 26
3.2 Results 27
3.2.1 ANOVA Results 27
3.2.2 Regression model 31
3.3 Disscussion 36
Chapter 4. Gait Experiment 39
4.1 Methods 39
4.1.1 Human subjects 39
4.1.2 Experimental setup 39
4.1.3 Floors and footwear conditions 41
4.1.4 Tempo-spatial variables 44
4.1.5 Experiment procedure 45
4.1.6 Experiment design and Data analysis 46
4.2 Results 47
4.2.1 COF on the floor 47
4.2.2 ANOVA results of the tempo-spatial variables 48
4.2.3 Slip and fall outcomes of trials 51
4.3 Discussion 54
Chapter 5. Conclusions 57
參考文獻 58
Appendix 65
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