果园塔喷雾器非线性动态中不规则土壤装载引起的参数不确定性的量化 (Quantification of parametric uncertainties induced by irregular soil loading in orchard tower sprayer nonlinear dynamics)

This paper deals with the nonlinear stochastic dynamics of an orchard tower sprayer subjected to random excitations due to soil irregularities. A consistent stochastic model of uncertainties is constructed to describe random loadings and to predict variabilities in mechanical system response. The dynamics is addressed in time and frequency domains. Monte Carlo method is employed to compute the propagation of uncertainties through the stochastic model. Numerical simulations reveals a very rich dynamics, which is able to produce chaos. This numerical study also indicates that lateral vibrations follow a direct energy cascade law. A probabilistic analysis reveals the possibility of large lateral vibrations during the equipment operation.

翻译：本文论述由于土壤异常而随机引出的一个果园塔喷雾器的非线性蒸汽动态; 构建一个一致的不确定性随机分析模型,以描述随机装载和预测机械系统反应的变异性; 动态在时间和频度范围内得到处理; 使用蒙特卡洛方法计算通过蒸汽模型传播的不确定性; 数值模拟显示一种非常丰富的动态,能够造成混乱; 数字研究还表明,横向振动遵循直接的能源级联法。概率分析显示,在设备操作期间有可能发生大量的横向振动。