Nonlinear Hysteresis Response Characteristic Of Vibratory Drum With Consideration Of Its Slipping
Zheng shu-he1,2 Lin shu-wen2
1.school of mechanical engineering & automation, fuzhou university, fuzhou 350108, china 2.school of mechanical electrical engineering &automation, fujian agriculture and forestry university, fuzhou 350002, china
Abstract：The resilience against displacement reveals symmetrical hysterics during the horizontal excitation vibratory compaction. As the soil compactness is high enough, slipping is produced through vibration drum. Based on Bilinear symmetric hysteresis model, a 2-def dynamic model is established in terms of segmental line according to soil property parameters. By means of numerical simulation, the influence of soil parameters and the excitation amplitude &frequency on the response of the vibratory drum were analyzed. Under the action of the symmetrical hysterics force, super-harmonics occurred and its spectrums present in addition to the fundamental wave only rich odd harmonics. With the increment of compactness, the even and fraction harmonics appear, which marks the occurrence of slipping. Even quasi periodic motion may be introduced. Therefore, adjustment of excitation amplitude and excitation frequency could availably to restrain the drum slip and quasi periodic motion.
2014, Vol. 33 
