Influence of Vibration Characteristics of Agricultural Tire on Transfer Characteristics of Lug Excitation Force and Shaft Force
Influence of Vibration Characteristics of Agricultural Tire on Transfer Characteristics of Lug Excitation Force and Shaft Force
复制标题
农用轮胎振动特性对凸耳激振力和轴力传递特性的影响
DOI：
10.1115/imece2019-11055
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Kaneko Mitsugu
中科院分区：
文献类型：
--
作者：
Fujita Katsuhide;Saito Takashi;Kaneko Mitsugu
本研究的目的是阐明农业机械在轮胎耳片与路面相互作用下产生振动的机理。研究滚动农用轮胎的凸耳激振力对阐明其振动产生机理具有重要意义。在我们之前的研究中，我们将农用轮胎建模为一个三维刚性环模型（SWIFT模型）。进一步推导了SWIFT模型的频率方程，并通过最小化实测频率与计算固有频率之差来识别模型参数。为了识别凸耳激励力，通过滚动试验对滚动运动过程中的轴位移和轴力进行了三维测量，识别了纵向、纵向和横向的凸耳激励力。根据所得结果，研究了轴力特性和凸耳激振力特性。结果表明，轴力与胎耳激振力之间存在一定的相关性，且两者均受轮胎振动特性的影响。然而，没有研究凸耳激励力（作为输入）和轴力（作为输出）之间的传递特性。在本研究中，振幅放大和相位差作为凸耳激励力和轴力的传递特性进行了分析。在此基础上，研究了轮胎振动特性对传递特性的影响。
The objective of this study is to clarify the vibration generation mechanism of agricultural machinery caused by the interaction between the tire lugs and the road surface. It is important to investigate the lug excitation force occurring on a rolling agricultural tire in order to clarify the vibration generation mechanism. In our previous study, we modelled the agricultural tire as a three-dimensional rigid ring model (SWIFT model). Further, the frequency equations of SWIFT model are derived and the model parameters are identified by minimizing the difference between measured and calculated natural frequencies. In order to identify lug excitation force, shaft displacement and shaft force during rolling motion are measured three-dimensionally by rolling test and lug excitation force in longitudinal, vertical and lateral direction are identified. From the obtained results, shaft force characteristics and lug excitation force characteristics are investigated. As a result, there is a correlation between shaft force and lug excitation force and it has been confirmed that both characteristics are influenced by the vibration characteristics of the tire. However, the transfer characteristics between lug excitation force (as input) and shaft force (as output) are not investigated.In this study, amplitude magnification and phase difference are analyzed as the transfer characteristics of lug excitation force and shaft force. From the obtained results, the influence of vibration characteristics of the tire on transfer characteristics are investigated.