Typically, a wheelchair consists of four wheels: two large wheels in the rear, which are used for propelling the wheelchair, and two small wheels in the front, which swivel and are called casters.
In the present work, the wheel rail system consists of four wheels, one rail, and a series of sleepers.
It can be seen that the DCW consists of two wheels, a solid axle, a hollow axle, and a clutch-type limited slip differential.
A finite element vibration model of a multiple wheel rail system which consists of four wheels, one rail, and a series of sleepers is established to address the problem of rail corrugation in high-speed tracks.
The equipment consists of four wheel dynamometers, a steering robot, and a differential GPS system together with an inertial platform, a non-contact vehicle speed sensor, and an on-board computer with software to control the devices and collect experimental data.
For example, Hong et al. proposed a mechanism consisting of two rimless wheels with individually actuated spokes in Intelligent Mobility Platform with Active Spoke System (IMPASS) to travel on uneven surfaces like tracks and step over obstacles like legged vehicles while retaining the simplicity of wheels [12].
(a) The CAD pattern design consisting of five identical wheel array structures (see right side for zoom-in view) at the 1 mm × 1 mm writing field center and four corners.
The straddle-type monorail train is different from all the railway and highway vehicles, as it has a special bogie which consists of four steering wheels, four driving wheels and two stabilizing wheels, as shown in Fig. 3.
The government fleet consists of three four-wheel-drive vehicles, so officials are having to borrow extra cars from the locals.
