Abstract
ABSTRACT To analyze the influencing factors of impact force on potatoes, a mathematical model between the impact peak force, the potato mass and the drop height was established as . A single-factor impact test was carried out, and the models for , and were presented as and . Taking the combination form of and as the test factor, the of two potato varieties, namely, Xiabodi and Gaoyuanhong, were tested under the impact materials of steel, steel-soft plastic, steel-rubber and steel-leather. The relationships between and were all under the four types of impact materials by the regression analysis of the test results. The range of was from 980.9 to 1395.7. The effect of potato variety on was analyzed. The results showed that under the same conditions, the of Xiabodi was 8.03 N smaller than that of Gaoyuanhong on average, which indicated that Xiabodi had a better tolerance to impact force. The effect of impact material on was analyzed. The results showed that with steel, steel-leather, steel-rubber and steel-soft plastic decreased in turn, and the average difference between the maximum and minimum value of was 16.6 N.
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