Results 41 to 50 of about 4,527 (263)
Study on an Improved Algorithm for Helical Gear Meshing Stiffness and Its Influencing Factors
Jixie chuandong, 2023 Based on the potential energy method, an algorithm for modifying the meshing stiffness of helical gears is proposed. This method considers the real machining of the tooth root transition curve, which is a trajectory line formed by the tip angle of the ...
Liu Ziqian +5 more
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Biodegradable and Biocompatible Functional Polymers for Biomedical Applications
Advanced Functional Materials, EarlyView.Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han +5 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia +12 more
wiley +1 more source
Simulation of meshing characteristics of harmonic reducer and experimental verification
Advances in Mechanical Engineering, 2018 This article studies the causes of the time-varying stiffness of harmonic drive gear and the number of meshing teeth and the meshing length under different torques. Multi-pair tooth meshing characterizes the operating process of the harmonic gear reducer.
Jianfeng Ma +3 more
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Advanced Functional Materials, EarlyView.A multifunctional structural power composite is developed by integrating high‐mass‐loading Zn‐ion hybrid supercapacitors with metal mesh current collectors and aramid nanofiber‐based composite electrolytes, enabling simultaneous load‐bearing capability and enhanced areal energy storage.
Yuseung Choi +8 more
wiley +1 more source
工程科学与技术, 2020 With the wide use of helical planetary gears in the case of high-speed and heavy loads, the study of dynamic loads characteristics become great significance for reduction vibration and noises.
Jinke JIANG, Zongde FANG, Hongmei LIU
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Meshing stiffness characteristics of modified variable hyperbolic circular-arc-tooth-trace cylindrical gears [PDF]
Mechanical SciencesStiffness excitation is one of the important excitations for the variable hyperbolic circular-arc-tooth-trace (VH-CATT) cylindrical gear system. Accurate calculation of the gear meshing stiffness is of great significance to investigating dynamic ...
D. Ma, B. Jiang, Z. Ye, Y. Liu
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Forced vibrations of gearboxes with time dependent meshing stiffnesses [PDF]
PAMM, 2003 AbstractThe contribution presents the efficient method of the mathematical modelling of gearboxes with time dependent meshing stiffnesses. A gearbox is considered including a housing and an interior rotating shaft system with gears. Further the paper deals with an analysis of vibrations excited by the important sources of the internal excitation in ...
Hajžman, M., Zeman, V., Byrtus, M.
openaire +1 more source
Advanced Functional Materials, EarlyView.Controlling counterion exchange rate during aqueous phase separation enables the formation of skin‐free, homogeneously porous polyelectrolyte complex hydrogels by suppressing kinetically trapped skin layers and macrovoids. The resulting hydrogel networks exhibit exceptional toughness (∼15 MJ·m−3) and enable 3D (bio)printing and post‐functionalization ...
Adrivit Mukherjee +7 more
wiley +1 more source
Meshing Stiffness Calculation and Main Resonance Analysis of Helical Gear Transmission
工程科学与技术, 2019 Helical gear is an important element of mechanical equipment. The accurate calculation of meshing stiffness and the stability analysis of the transmission system have important practical significance.
Huirong SHI, Dongyan ZHAO, Zonggang LI
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