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通过对水田叶轮单轮叶动力性能的大量测试结果,分析了轮叶产生的推进力、支承力和驱动效率受轮叶倾角、陷深、滑转率的影响和随轮叶转角位置的变化规律。轮叶产生最大推进力和支承力所对应的转角分别在90°和75°附近,支承力由正值变为零为零所对应的转角在100°左右。在95°轮叶转角附近轮叶的驱动效率最高,在80°至110°转角范围内有较高的驱动效率。但作旋轮线轨迹运动的单个轮叶,在滑转率10%~15%时最高驱动效率达75%,随着陷深和滑转率的增大驱动效率的平均值明显下降。
Based on a large number of test results on the dynamic performance of paddles in paddy fields, the propulsive forces, supporting forces and driving efficiencies of paddles were analyzed. The effects of paddle inclination, settlement depth and slip ratio and the variation with the rotation angle . The maximum impeller thrust force and support force corresponding to the corner at 90 ° and 75 ° in the vicinity of the supporting force from zero to zero for the corresponding angle of about 100 °. The vane drive efficiency is highest near the 95 ° vane corner and has higher drive efficiency in the 80 ° to 110 ° corner range. However, the single vane, which is used for the orbital motion, has the highest driving efficiency of 75% at the slip rate of 10% ~ 15%. The mean value of the driving efficiency decreases obviously as the depth and the slip rate increase.