Results 221 to 230 of about 10,494 (268)

Dynamics of noncontact rack-and-pinion device: Periodic back-and-forth motion of the rack

Physical Review E, 2010
We study a nanoscale system composed of one corrugated cylinder (pinion) and one corrugated plate (rack). The pinion and rack have no mechanical contact, but are coupled via the lateral Casimir force. We consider the case where the rack position versus time is a periodic triangular signal.
Mojtaba, Nasiri, Ali, Moradian, MirFaez, Miri   +2 more
openaire   +2 more sources

Optimal Design of Rack-and-Pinion Steering Linkages

Journal of Mechanisms, Transmissions, and Automation in Design, 1983
A mathematical model is developed for the design synthesis of rack-and-pinion steering linkages. The general objective is to minimize the difference between the steering centers over the full range of steering angle inputs while fitting into a reasonable space.
C. E. Zarak, M. A. Townsend
openaire   +1 more source

Casimir rack and pinion as a miniaturized kinetic energy harvester

Physical Review E, 2016
We study a nanoscale machine composed of a rack and a pinion with no contact, but intermeshed via the lateral Casimir force. We adopt a simple model for the random velocity of the rack subject to external random forces, namely, a dichotomous noise with zero mean value. We show that the pinion, even when it experiences random thermal torque, can do work
MirFaez, Miri, Zahra, Etesami
openaire   +2 more sources

New Rack and Pinion Steering Design and Manufacturing Technology

SAE Technical Paper Series, 1984
<div class="htmlview paragraph">The justification for variable-ratio rack and pinion steering is discussed in the context of the modern front-wheel-drive car. The rack tooth geometry associated with this new steering technology prompted the development of a rack forging process which enables the forming of the entire rack cross-section in a ...
Arthur E. Bishop, John Baxter
openaire   +1 more source

Finite Element Analysis on Rack and Pinion of Roadheader

Advanced Materials Research, 2013
To analyse the road-header rack and pinion by using the finite element analysis software COSMOS/WORKS. Compared to the traditional analytic calculation and numerical analysis method, it is more intuitively get 28 ° pressure angle spur gear rack meshing stress and strain distribution, which can rack and pinion improvements designed to provide scientific
Man Man Xu, Yu Li, Sai Nan Xie, Qing Hua Chen   +3 more
openaire   +1 more source

RACK-AND-PINION STEERING

2003
The invention relates to a rack-and-pinion steering (1), particularly for a motor vehicle, comprising a steering-gear housing (2) and a pinion (3) that is mounted inside the steering-gear housing (2). A rack (4), which engages with the pinion (3) via a toothing (5), is mounted inside the steering-gear housing (2) in an axially displaceable manner.
ZF LENKSYSTEME GMBH, JOACHIM FRANZ-JOSEF, HAFERMALZ JENS-UWE, SCHAENZEL RAINER, BENKLER KARL, SPECHT HARTMUT, OCKER HERMANN   +6 more
openaire   +1 more source

Reliability Sensitivity Analysis for Rack-and-Pinion Steering Linkages

Journal of Mechanical Design, 2010
In this paper, a reliability sensitivity analysis methodology for the kinematic accuracy of rack-and-pinion steering linkages (RPSLs) is developed. The direct linearization method is applied to obtain the kinematic accuracy errors of planar linkages due to link-length variations. The RPSL widely used in many types of vehicles is chosen as an example to
Xianzhen Huang, Yimin Zhang
openaire   +1 more source

Virtual Prototype of Rack and Pinion Steering Gear Meshing

SAE Technical Paper Series, 2003
<div class="htmlview paragraph">Rack and pinion steering gear being compact and light package with kinematically stiffer characteristics is commonly employed on passenger vehicle cars. Satisfactory performance of the steering system is determined by an acceptance test, which checks the composite error in the gear.
Naresh Kamble, S K Saha, Rajesh Priyadarshi   +2 more
openaire   +1 more source

Geometric Design of Pure Rolling Rack and Pinion Mechanisms

Volume 10: 2019 International Power Transmission and Gearing Conference, 2019
Abstract The study of different types of pure rolling rack and pinion mechanisms is presented. They are designed based on the active design of the meshing line to provide pure rolling for the whole cycle of meshing. Parametric equations for contact curves on the rack and pinion are determined by coordinate transformation of the meshing ...
Zhen Chen, Ming Zeng, Alfonso Fuentes-Aznar   +2 more
openaire   +1 more source

Noncontact Casimir rack and pinion as an excitable system

Applied Physics Letters, 2015
We study the influence of thermal noise on the rack and pinion coupled by the lateral Casimir force. The pinion position versus time exhibits a sequence of spikes. We identify the Casimir machine as an excitable system equivalent to the Adler system. We show that the interspike time distribution can be analyzed to access the Casimir and friction forces.
Zahra Etesami, MirFaez Miri
openaire   +1 more source