Results 11 to 20 of about 5,147 (108)
Applied Sciences, 2022 The concentric face gear split-torque transmission system (CFGSTTS) is a new form of drive that is primarily used in helicopter transmission systems. Its load-sharing performance among different branches and tooth contact characteristics have a great ...
Fei Gong +3 more
doaj +1 more source
Frontiers in Mechanical Engineering, 2023 With the growing demand for lightweight gear transmission systems, composite materials have emerged as a promising solution due to their high specific properties.
Wael Masmoudi +4 more
doaj +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2018 A working pitch cone based geometry design approach for the intersected beveloid and cylindrical involute gear pair with small shaft angle was proposed. The cutter and geometry design parameters can be determined by the proposed method.
Chaosheng SONG +4 more
doaj +1 more source
The BER performance of a FSO system with polar codes under weak turbulence
IET Optoelectronics, 2022 The key challenge in free space optical (FSO) communications is combating turbulence‐induced fading. As the channel fading in FSO is quasi‐static, the transmission parameters such as the code rates, transmit power and modulation schemes can be modified ...
Nithin Mohan +6 more
doaj +1 more source
Sensors, 2012 Intra-Body Communication (IBC), which modulates ionic currents over the human body as the communication medium, offers a low power and reliable signal transmission method for information exchange across the body.
Min Du +6 more
doaj +1 more source
FULL-RATE SPACE-TIME BLOCK CODE FOR FOUR TRANSMIT ANTENNAS WITH LINEAR DECODING
Jordanian Journal of Computers and Information Technology, 2020 This paper proposes a new full-rate space-time block code for MIMO systems at four transmit antennas, which aims at minimizing the bit error rate with low-complexity decoding using ZF and MMSE linear detection techniques in Rayleigh fading channels ...
Younes Djemamar +2 more
doaj +1 more source
IEEE Access, 2023 Information is conveyed by either time, antenna, and/or frequency in the conventional modulation. In this paper, we propose a novel technique to convey information in Alamouti space-time block coding systems.
Hongjun Xu +2 more
doaj +1 more source
Study of the tooth contact for high contact ratio spur gears with long tip relief [PDF]
MATEC Web of Conferences, 2019 Profile modifications are commonly used to avoid shocks between meshing gear teeth produced by the delay of the driven gear, and the subsequent sooner start of contact, due to the teeth deflections.
Pedrero José I. +2 more
doaj +1 more source
Effects of Geometry Design Parameters on the Static Strength and Dynamics for Spiral Bevel Gear
International Journal of Rotating Machinery, 2017 Considering the geometry design parameters, a quasi-static mesh model of spiral bevel gears was established and the mesh characteristics were computed. Considering the time-varying effects of mesh points, mesh force, line-of-action vector, mesh stiffness,
Zhiheng Feng, Chaosheng Song
doaj +1 more source
Jixie qiangdu, 2023 To study the association relationship between amplitude jumps and tooth meshing impact in a gear transmission system with backlash, the dynamic equations of amplitude-frequency characteristics of a single gear system are established by the method of ...
TIAN YaPing +3 more
doaj