نتایج جستجو برای: slip ratio
تعداد نتایج: 519312 فیلتر نتایج به سال:
In this work, analytical solutions are provided to the nonlinear equations arising in thermal and flow-induced vibration in fluid-conveying structures using Galerkin-differential transformation method with cosine aftertreatment technique. From the analysis, it was established that increase of the length and aspect ratio of the fluid-conveying structures result in decrease the nonlinear vibratio...
In this study, we investigated the electrical transport properties of niobium titanium nitride (NbTiN) nanowire with four-terminal geometries to clarify the superconducting phase slip phenomena and superconducting-insulator transitions (SIT) for one-dimensional superconductors. We fabricated various nanowires with different widths and lengths from epitaxial NbTiN films using the electron beam l...
The phenomenon of apparent slip in micro-channel flows is analyzed by means of a two-phase mesoscopic lattice Boltzmann model with non-ideal fluid–fluid and fluid–wall interactions. Analytical solutions of the weakly inhomogeneous hydrodynamic limit of this model are successfully compared with numerical simulations and show that the present mesoscopic approach is capable of filling the gap betw...
Rapid advances in microelectromechanical systems have stimulated the development of compact devices, which require effective cooling technologies (e.g., microchannel cooling). However, the inconsistencies between experimental and classical theoretical predictions for the liquid flow in microchannel remain unclarified. Given the larger surface/volume ratio of microchannel, the surface effects in...
Abstract This paper presents a new Sliding Mode Control (SMC) method based on Model Predictive Control (MPC) algorithm for the slip suppression of EVs. The proposed method focusses on improving the acceleration performance and low energy consumption of EVs by controlling the slip ratio of wheel under driving. In this paper, the extended SMC method is proposed to improve the control performance ...
Introduction: Kitchen workers are in danger of slip accident because of slippery surfaces created by contaminants like grease, water and food material. The aim of this study was to investigate the prevalence and slip risk assessment in cooking sites of Shiraz. Material and Method: This cross-sectional study was conducted on 322 cases from commercial kitchens in traditional and fast food rest...
The purpose of this document is to describe important tire characteristics and their effect on vehicle performance. Characteristics considered are those that the Formula SAE judges have deemed important for discussion on tires at competition and include coefficient of friction, slip angle, slip ratio, camber angle, cornering stiffness, camber stiffness, self-aligning torque, normal load sensiti...
The forces of contact during manipulation convey substantial information about the state of the manipulation. Textures, slip, impacts, grasping, and other contact conditions produce force and position signatures that can be used for identifying the state of contact. This paper address the fundamental problems of interpreting the force signals without any additional context on the state of manip...
Let P be one of the possible slip planes in a crystal, and let X be one of the possible slip directions in the plane P. Also let S be the magnitude of the shearing stress on the plane P resolved in the direction X, and So the critical value of S, i.e., the least value of S sufficient to permit slip or plastic deformation under the conditions specified in the following italicized statement; if s...
The doubly-fed induction generator (DFIG) is widely used in variable speed wind energy conversion systems (WECS). This paper presents a review on various topologies, configuration, power converters and control schemes used with the operation of the DFIG. The operation of DFIG based on both slip ring and brushless arrangement has been discussed. The grid integration of DFIG and its influence on ...
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