智能振动压路机水平方向系统力学分析与试验  

Dynamical analysis and testing on horizontally-directed system of intelligent vibratory rollers

作　　者：沈培辉[1] 林述温[2] 

机构地区：[1]福建交通职业技术学院,福建福州350007 [2]福州大学机械工程及自动化学院,福建福州350002

出　　处：《中国工程机械学报》2011年第4期471-475,共5页Chinese Journal of Construction Machinery

基　　金：福建省自然科学基金资助项目(2009J05113)

摘　　要：在整体动力学模型的基础上,给出接触和脱耦两个运动阶段的局部解析解,分析智能振动压路机的水平方向系统动力学特性.结果表明,水平方向系统随着土壤的密实出现与垂直方向系统明显不同的振动反馈特性,高次谐波幅值不呈依次递减,奇次谐波成分相对偶次谐波有较大能量存在.通过现场的沥青压实试验也发现,频率为72.021Hz和142.822Hz的偶次谐波幅值裕度相对较小,而频率为107.422Hz的奇次谐波幅值裕度相对较大.Based on a global dynamical model, the local both motional phases of contact and slide. Mterwards, analytical solutions are preliminarily obtained for the dynamical properties of intelligent vibratory rollers are analyzed in terms of the horizontally-directed system. Subsequently, it is found that, with regard to the soil compactness, the vibration feedback properties of horizontally-directed system are obviously different from those of vertically-directed system. Meanwhile, the amplitudes of high-order harmonic waves do not decrease by orders, whereas the energy from odd-order harmonic waves is higher than that from even-order harmonic waves. Consequently, it is detected from an on-site testing on asphalt compacting that the amplitudes of even-order harmonic waves with frequencies of 70. 021 Hz and 142. 822 Hz are relatively lower, whilst the amplitude of odd-order harmonic wave with frequency of 107.42 Hz is relatively higher.

关 键 词：智能振动 水平方向 动力学分析 振动反馈 在线检测 

分 类 号：TU663[建筑科学—建筑技术科学]