Results 51 to 60 of about 17,701 (214)
Summary of Harmonic Gear Drive
Jixie chuandong, 2019 With the development of industry,harmonic gear drive technology has been more and more applied with its special advantages. The principle,characteristics and application of harmonic gear drive are briefly introduced,the domestic and foreign development ...
Wang Ruifeng +3 more
doaj
Effect of Variations in the Ring Thickness on the Dynamic Performance of the Bimetal Gears
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT This study used a six‐degrees‐of‐freedom dynamic model to analyze the dynamic response of bimetal spur gears. Aluminum alloy forms the core of the bimetal gears, and a uniform‐thickness steel ring surrounds the teeth. Gear mesh stiffness of bimetal gears and the transmission error have been assessed using a numerical approach based on finite ...
Bikramjit Singh +2 more
wiley +1 more source
MachinesAs a key component in robots, the harmonic drive directly impacts the reliability and lifespan of the whole system. Due to the cyclic inertial loading and installation errors, the harmonic drive possesses unique but complicated vibration features.
Guolin He +5 more
doaj +1 more source
Harmonic drive gear error: Characterization and compensation for precision pointing and tracking [PDF]
Imperfections and geometry effects in harmonic drive gear reducers cause a cyclic gear error, which at a systems level, results in high frequency torque fluctuations.
Kraml, Robert P., Nye, Ted W.
core +1 more source
Radiometer-deployment subsystem [PDF]
, 1972 A radiometer-deployment subsystem for the Nimbus E spacecraft was designed, developed, and qualified for space use. The dimensions of the radiometer are 0.9 meter square by 0.1 meter, and its weighs 32 kilograms.
Speight, K. M.
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PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators
International Journal of Robust and Nonlinear Control, EarlyView.ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh +2 more
wiley +1 more source
Jixie chuandong, 2018 Taking the MATLAB software as platform,on the premise of considering influence of nonlinear factor such as gear backlash etc on the dynamic performance of system,the digital simulation model of harmonic gear drive is built.
Hao Junwen
doaj
Engineering analysis and test results of the pre-stage planetary gear trains for wrist rotation and pitch assembly and azimuth and elevation assembly of the extendable stiff arm manipulator kit assembly [PDF]
In order to improve the performance capability of the Extendable Stiff Arm Manipulator (ESAM) it was necessary to increase the overall gear ratio by a factor of approximately four.
Morris, R. N.
core +1 more source
Fault detection in operating helicopter drive train components based on support vector data description [PDF]
, 2018 The objective of the paper is to develop a vibration-based automated procedure dealing with early detection of mechanical degradation of helicopter drive train components using Health and Usage Monitoring Systems (HUMS) data. An anomaly-detection method
Bendisch, Stefan +2 more
core +1 more source
Regulatory Framework and Public Policies for Sustainability in the Construction Sector
Sustainable Development, EarlyView.ABSTRACT This study analyzes the role of public policies in promoting socially responsible practices in the construction sector, with a particular focus on their contribution to climate neutrality and the decarbonization of the building stock. European agreements exert increasing pressure to transform the construction sector, reinforcing the transition
Olga González‐Morales +3 more
wiley +1 more source