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首页> 外文期刊>SAE International Journal of Passenger Cars - Mechanical Systems >Static Contact Behaviors of a Non-Pneumatic Tire with Hexagonal Lattice Spokes
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Static Contact Behaviors of a Non-Pneumatic Tire with Hexagonal Lattice Spokes

机译：具有六角格形辐条的非充气轮胎的静态接触行为

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摘要

A non-pneumatic tire (NPT) has two advantages over a conventional pneumatic tire; it is flat proof and maintenance free of air-pressure. In this study, while determining other advantages inherent in NPTs, the static contact behavior of NPTs with hexagonal honeycombs is investigated as a function of vertical loading and is compared with that of a pneumatic tire. A finite element based numerical simulation is carried out on the contact pressure of NPTs with cellular spokes and the local deformation of cellular spokes. A commercial finite element code, ABAQUS, is used to vary the vertical forces and lattice spoke geometries. A lower contact pressure is obtained with the NPTs than with the pneumatic tire due to the decreasing spoke stiffness of the NPTs when they are designed to have the same load carrying capability. An NPT with hexagonal lattice spokes having a higher cell angle shows a lower local cell wall stress in the spokes, associated with the flexible honeycomb property in uni-axial compression.
机译：与传统的充气轮胎相比，非充气轮胎（NPT）具有两个优点：它是平坦的，无气压。在这项研究中，在确定NPT固有的其他优势的同时，研究了NPT与六角形蜂窝的静态接触行为，该行为是垂直载荷的函数，并将其与充气轮胎进行了比较。对基于NPT的蜂窝状辐条的接触压力和蜂窝状辐条的局部变形进行了基于有限元的数值模拟。商业有限元代码ABAQUS用于更改垂直力和晶格轮辐几何形状。当NPT设计为具有相同的承载能力时，由于NPT的轮辐刚度降低，因此与充气轮胎相比，NPT的接触压力更低。具有较高晶胞角的六边形格子辐条的NPT在辐条中显示出较低的局部晶胞壁应力，这与单轴压缩中的柔性蜂窝特性有关。

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