Coupling Analysis on the Hysteresis Characteristic of intelligent vibratory roller under the slant excitation mode
ZHENG Shuhe1 LIN Shuwen2
1. College of Mechanical Electrical Engineering &Automation, Fujian Agriculture And Forestry University, Fuzhou 350002, China
2. College of Mechanical Engineering & Automation, Fuzhou University, Fuzhou 350108, China
Abstract：The resilience of the drum of vibration roller in the horizontal and vertical direction against displacement reveals different hysteresis during the slant excitation compaction. As the soil compactness is high enough, jump vibration and slipping are produced through vibration roller. Based on the above two notions, kinetic equations of various compaction conditions and stages are established in terms of segmental line horizontal symmetric hysteretic and vertical asymmetric hysteretic model according to soil property parameters. According to the first order approximation, the equivalent damping coefficient and equivalent stiffness coefficient of hysteretic resilience were deduced through the harmonic linearization method. By means of numerical simulation, the hysteresis characteristics of three compaction conditions and correlating coupling properties of horizontal and vertical direction were in turn analyzed, namely, contraction vibration, slip-rolling and jump vibration, and its transformation rules were revealed. Adjustment of excitation amplitude and excitation frequency could availably restrain jump vibration and slipping of the drum to ensure the quality of compaction, efficiency and driving comfort in the compaction process.
郑书河1 林述温2. 斜向激振模式下振动轮的滞回耦合特性分析[J]. 振动与冲击, 2015, 34(22): 47-53.
ZHENG Shuhe1 LIN Shuwen2. Coupling Analysis on the Hysteresis Characteristic of intelligent vibratory roller under the slant excitation mode. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(22): 47-53.
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