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受扭动微动分量控制,表面损伤伴随着明显的剥落.扭转复合微动的磨损机制主要为磨粒磨损,氧化磨损和剥层.关键词:7075铝合金；扭转复合微动；接触载荷；磨损行为Effect of contact load on dual-rotary fretting tribological behavior of 7075 aluminum alloyShen Ming-xue1, 2, Yang sha1... contact loads. Thus, the effect of contact load on the DRF wear behavior was examined. Based on the analysis of the frictional kinetics and the observation of wear morphologies, the damage......
on irregular barrier was achieved according to the macroscopic relation of contact force versus contact time, in which the main factors such as the relative geometrical characteristics of projectile... velocity. Key words: solid mechanics; penetration depth; contact mechanics; computation method; yaw-inducing bursting 1 Introduction With the rapid development of deep penetration weapons......
of three types of wheel, i.e. rail contact model-nonlinear Hertz contact, linear Hertz contact and rigid contact on the dynamical analysis result of train-track-bridge vertical coupled system were... by finite element method. Depending on different wheel-rail contact models, the corresponding wheel-rail force calculation formulas were established, and the iterative method were used to calculate......
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by the carbon fiber sized with the polymer films of phenol, m-phenylenediamine or acrylic acid, which was electropolymerized by cyclic voltammetry or chronopotentiometry. The contact angles... on the surface free energy of the carbon fiber after sizing by the electropolymerization. Compared with the unsized carbon fiber, which has 85.6°of contact angle of water,52.2° of contact angle of diiodomethane......
parts according to its deformation and contact with the punch and the elastic foundation, especially an elastic-plastic part was considered in the deflection of the thin strip. Analytical solutions were... thin strip were obtained. The results of the two models were compared. The study shows that the method is effective. Key words: elastic-plastic solution; beam bending; thin strip stamping; contact......
Trans. Nonferrous Met. Soc. China 26(2016) 3161-3169 Effect of carburization on microstructure and rolling contact fatigue property of 95W-3.4Ni-1.6Fe heavy alloy Guang-hong WANG, Sheng-guan QU, Rui... XRD. Effect of carburization on the rolling contact fatigue (RCF) property of the alloy was studied. The results showed that the carburized layer was composed of the outer, porous WC layer......
parabolics were conducted along the contact path and the contact line. Ease-off tooth contact analysis methodology was used to analyze the target tooth surface meshing performance. The results show that the transmission error, contact path and contact line are the same as the pre-preconditions. The novel zoning modification method can be used for modification research of whole tooth surface of spiral......
; 文献标志码:A 文章编号:1672-7207(2009)06-1580-07 Analysis of gripping contact force and force-closure of manipulator WU Yong-hong, LI... to reasonably ascertain grasping force of manipulator while stably grasping, the contact force between V style finger tip and object due to the pre-tighten force was calculated based on the line contact theory......
of contact performance of spiral bevel gears with tooth profile modification based on arc blade profile was studied. Firstly, the tooth surface mathematical equation of spiral bevel gear by duplex... loading contacts analysis of spiral bevel gear pairs was conducted in different shapes of blade profile, and then the contact area, transmission error and the maximum contact stress were gained. Finally......
