A kind of dynamic wheel-track contact element is designed by the technology of ANSYS User Program Features.

利用ANSYS用户可编程接口技术，设计了一种轮轨动力接触单元。

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This paper sets up a dynamic analysis model of subway vehicle-elastic fastener and analyzes the influence of fastener stiffness, train operation speed on the wheel-track force.

为分析弹性钢轨扣件轨道的轮轨作用力，通过建立地铁车辆弹性扣件动力分析模型，分析了扣件刚度、列车运行速度等对轮轨作用力的影响。

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In this thesis, we aim at establishing detailed relation of wheel-track and of bridge-track, on the basis of which, we have coded programs about the train-rail-bridge coupling system.

可见，有必要详细分析轮轨关系和桥轨关系，在此基础上，编制了车-线-桥耦合系统计算程序。

youdao

The Storm posed a special challenge for RIM because the company's operating system had always been tailored to a keyboard and click-wheel or track-ball for navigation, rather than a touch screen.

WSJ: BlackBerry Storm Is Off To Bit of a Bumpy Start

This video shows Translogic's Bradley Hasemeyer behind the wheel of the track-friendly (but also street legal, licensed as a motorcyle) vehicle and talking to the people who built it.

ENGADGET

It includes one hour of classroom instruction, video demonstrations and chalk talk, a half-hour track and vehicle orientation, lunch, and four and a half hours of track exercises in front and all-wheel-drive vehicles.

FORBES: Make Winter Driving Fun And Safe: The Bridgestone Winter Driving School