共搜索到15845条信息,每页显示10条信息,共1585页。用时:0小时0分0秒898毫秒
Hereditary transmission of AZ91D magnesium alloy ZHAO Yu(赵宇)1, 2, CHEN Li(陈莉)1, ZHOU Hong(周宏)2 1. School of Materials Science and Engineering, Changchun University of Technology, Changchun... that the microstructure and property of the remelted magnesium alloy take on a hereditary transmission similar or resembling to those of feed materials. The characteristics of the short range order......
, the time-varying backlash caused by MEs and AEs, as well as the contact ratio under load conditions is also studied. In the rest of paper, the term ‘transmission error’ refers to the static... case are almost equal. Table 4 Results of different center distance errors Figure 11 The gear pair with different center distance errors: 5.6 Effects of TDs on contact ratio and transmission error......
accuracy, large transmission ratio, compact structure, and long service life. It is widely used in miniature instruments, robots, and testing instruments [1]. To guarantee the transmission accuracy... and obtained the film thickness ratio. The lubricating state from the root to the top of the tooth was determined. JIANG et al [4, 5] first studied the elastohydrodynamic lubrication transmission......
, respectively; i is the transmission ratio; e(t) is the static transmission error function; km is the time-varying meshing stiffness of the system; cm is the damping of the meshing; Tp is the driving torque...J. Cent. South Univ. (2017) 24: 726-735 DOI: 10.1007/s11771-017-3474-0 Super-harmonic resonance of gear transmission system under stick-slip vibration in high-speed train HUANG Guan-hua(黄冠华)1, 2, XU......
......
J. Cent. South Univ. Technol. (2009) 16: 0697-0701 DOI: 10.1007/s11771-009-0115-2 Design and dynamic simulation of hydraulic system of a new automatic transmission WANG Shu-han(王书翰)1, XU Xiang...; Abstract: A new hydraulic system of a novel automatic transmission......
in face-gear transmission, while the transmission ratio has a great impact on the location of the contact area of tooth surface. The larger the transmission ratio, and closer of the tooth contact area.... The higher accuracy and more stabe, the area and shape of the tooth surface contact area bring about the higher quality of transmission. Therefore, large transmission ratio and high manufacture......
) at any point behind the last joint can be estimated by the proposed prediction model for the transmission ratio (Tn)[1]. However, very often, joints exist in a rock mass in a whole set or several... for estimating the maximum rebound ratio Rn,.max, the proposed model can be used to estimate the upper limit of the PPVs, not only the wave amplitude ratio (such as the transmission ratio Tn......
. [3] HAN S, LEE J. An overview of peak-to-average power ratio reduction techniques for multicarrier transmission [J]. IEEE Trans on Wireless Commun, 2005, 12: 56-65. [4] SLIMANE S B. Reducing the peak...-Verlag Berlin Heidelberg 2012 Abstract: A new approach for peak-to-average power ratio (PAPR) reduction in orthogonal frequency division multiplexing (OFDM) systems was proposed. This approach is based......
propagation through single joint or multiple parallel joints were comprehensively conducted, using a suitable data processing method. The possible factors influencing the transmission ratio in 2-D... of the joints influence the transmission ratio; by contrast, the transmission ratio at any point is independent of the radial distance from the center of wave source. It is also found that the transmission......