Studies concerning the response of potatoes to impact

IF 2 4区 农林科学 Q2 AGRONOMY International Agrophysics Pub Date : 2022-05-13 DOI:10.31545/intagr/148097
Z. Stropek, K. Gołacki
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引用次数: 4

Abstract

. The paper presents the research results of the response of “Ramos” potatoes under impact loading conditions. The parameters characterizing the impact such as: maximum stress, maximum force, impact time, maximum deformation, permanent deformation and restitution coefficient were determined. The extent of the damage was also assessed on the basis of the parameters describing the particular bruise such as: bruise depth and width. The impact parameters were related to the bruise size in order to determine the damage threshold for the potatoes under impact loading conditions and to show which parameters describe the bruise beginning to manifest itself. For the tested potato cultivar with a weight of 160-190 g the initiation of the bruise was found to occur at an impact velocity of 1 m s -1 . This corresponded to a bruise threshold (drop height) of 50 mm. The restitution coefficient changed to an insignificant extent which amounted to 0.44-0.49 in the tested range of the impact velocity which proves that the energy losses during the potato impact are constant and independent of the impact velocity. The maximum stress increased with increasing impact velocity, reaching a constant value of 0.9 MPa for the highest impact velocities. The stabilization of the maximum stress indicates that the damage to the potato tissue was determined by exceeding the specified stress value.
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马铃薯对冲击反应的研究
本文介绍了“拉莫斯”马铃薯在冲击载荷条件下的响应研究结果。确定了表征冲击的参数,如:最大应力、最大力、冲击时间、最大变形、永久变形和恢复系数。损伤程度也根据描述特定瘀伤的参数进行评估,如:瘀伤深度和宽度。冲击参数与瘀伤大小相关,以确定土豆在冲击载荷条件下的损伤阈值,并显示哪些参数描述了瘀伤开始显现。对于重量为160-190g的受试马铃薯品种,发现在1ms-1的冲击速度下发生瘀伤。这对应于50mm的擦伤阈值(跌落高度)。在冲击速度的测试范围内,恢复系数变化不大,达到0.44-0.49,这证明了土豆冲击过程中的能量损失是恒定的,与冲击速度无关。最大应力随着冲击速度的增加而增加,在最高冲击速度下达到0.9MPa的恒定值。最大应力的稳定表明,对马铃薯组织的损伤是通过超过规定的应力值来确定的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Agrophysics
International Agrophysics 农林科学-农艺学
CiteScore
3.60
自引率
9.10%
发文量
27
审稿时长
3 months
期刊介绍: The journal is focused on the soil-plant-atmosphere system. The journal publishes original research and review papers on any subject regarding soil, plant and atmosphere and the interface in between. Manuscripts on postharvest processing and quality of crops are also welcomed. Particularly the journal is focused on the following areas: implications of agricultural land use, soil management and climate change on production of biomass and renewable energy, soil structure, cycling of carbon, water, heat and nutrients, biota, greenhouse gases and environment, soil-plant-atmosphere continuum and ways of its regulation to increase efficiency of water, energy and chemicals in agriculture, postharvest management and processing of agricultural and horticultural products in relation to food quality and safety, mathematical modeling of physical processes affecting environment quality, plant production and postharvest processing, advances in sensors and communication devices to measure and collect information about physical conditions in agricultural and natural environments. Papers accepted in the International Agrophysics should reveal substantial novelty and include thoughtful physical, biological and chemical interpretation and accurate description of the methods used. All manuscripts are initially checked on topic suitability and linguistic quality.
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