Sondre Bergtun Auganæs , Audun Formo Buene , Alex Klein-Paste
{"title":"越野滑雪宏观参数对滑行摩擦力影响的实验研究","authors":"Sondre Bergtun Auganæs , Audun Formo Buene , Alex Klein-Paste","doi":"10.1016/j.coldregions.2024.104264","DOIUrl":null,"url":null,"abstract":"<div><p>The complexity of the load response on a modern cross-country ski makes it difficult to address the individual macroscopic parameters' influence on ski-snow friction. In this study, a custom adjustable ski was developed to isolate the effect of normal force, apparent contact area, spacing and load split on the coefficient of friction. These parameters were tested in a ski-snow tribometer at relevant sliding speeds, normal loads, slider sizes and snow conditions for cross-country skiing. At cold air temperatures (−10 °C) the friction was governed by the average contact pressure, whereas at warmer air temperatures (−2 °C and + 5 °C) the friction was governed by the apparent contact area. Additionally, the effect of load split between the front and rear slider showed different trends depending on the temperature. Smaller spacing between the two sliders led to reduced friction across all temperatures. These findings provide new insights for optimizing cross-country ski gliding performance in various snow conditions.</p></div>","PeriodicalId":10522,"journal":{"name":"Cold Regions Science and Technology","volume":"225 ","pages":"Article 104264"},"PeriodicalIF":3.8000,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental investigation into the effect of macroscopic cross-country ski parameters on gliding friction\",\"authors\":\"Sondre Bergtun Auganæs , Audun Formo Buene , Alex Klein-Paste\",\"doi\":\"10.1016/j.coldregions.2024.104264\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The complexity of the load response on a modern cross-country ski makes it difficult to address the individual macroscopic parameters' influence on ski-snow friction. In this study, a custom adjustable ski was developed to isolate the effect of normal force, apparent contact area, spacing and load split on the coefficient of friction. These parameters were tested in a ski-snow tribometer at relevant sliding speeds, normal loads, slider sizes and snow conditions for cross-country skiing. At cold air temperatures (−10 °C) the friction was governed by the average contact pressure, whereas at warmer air temperatures (−2 °C and + 5 °C) the friction was governed by the apparent contact area. Additionally, the effect of load split between the front and rear slider showed different trends depending on the temperature. Smaller spacing between the two sliders led to reduced friction across all temperatures. These findings provide new insights for optimizing cross-country ski gliding performance in various snow conditions.</p></div>\",\"PeriodicalId\":10522,\"journal\":{\"name\":\"Cold Regions Science and Technology\",\"volume\":\"225 \",\"pages\":\"Article 104264\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-06-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cold Regions Science and Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0165232X24001459\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cold Regions Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0165232X24001459","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Experimental investigation into the effect of macroscopic cross-country ski parameters on gliding friction
The complexity of the load response on a modern cross-country ski makes it difficult to address the individual macroscopic parameters' influence on ski-snow friction. In this study, a custom adjustable ski was developed to isolate the effect of normal force, apparent contact area, spacing and load split on the coefficient of friction. These parameters were tested in a ski-snow tribometer at relevant sliding speeds, normal loads, slider sizes and snow conditions for cross-country skiing. At cold air temperatures (−10 °C) the friction was governed by the average contact pressure, whereas at warmer air temperatures (−2 °C and + 5 °C) the friction was governed by the apparent contact area. Additionally, the effect of load split between the front and rear slider showed different trends depending on the temperature. Smaller spacing between the two sliders led to reduced friction across all temperatures. These findings provide new insights for optimizing cross-country ski gliding performance in various snow conditions.
期刊介绍：
Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere.
Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost.
Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.
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