Results 91 to 100 of about 2,188 (260)
Study on the Time-varying Mesh Stiffness of Speed-increasing Gear Pair with Non-uniform Wear
Jixie chuandong, 2019 Taking an involute cylindrical speed-increasing gear pair as the research object, the tooth surface contact pressure and the relative sliding velocity are deduced to establish the non-uniform wear model of the spur gear pair based on the Hertz contact ...
He Zeyin +3 more
doaj
Nonlinear Dynamic Analysis of a Spur Gear Pair System with Wear Considering the Meshing Position
LubricantsIn this paper, a nonlinear dynamic model of a parallel shaft gear system consisting of two involute spur gears is developed to investigate the coupling effect between the gradual surface wear of gear teeth over time and nonlinear dynamic characteristics.
Zhibo Geng +5 more
doaj +1 more source
A Wireless, Passive Multimodal Wearable Sensor With Decoupled Sensing Capabilities
Advanced Materials, EarlyView.A wireless passive multimodal electronic skin is presented for the simultaneous perception of pressure, humidity, and odor through a frequency‐divided LC resonator array. The decoupled sensing architecture suppresses cross‐interference and enables independent signal readout under superimposed stimuli while maintaining high stability.
Wenjiang Han +8 more
wiley +1 more source
Advanced Materials, EarlyView.This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao +3 more
wiley +1 more source
Jixie chuandongObjectiveWhen calculating the time-varying meshing stiffness based on the potential energy method, the length and position of the traditional cantilever beam model are usually fixed, and the change of the position of the cantilever beam root caused by ...
LIU Zongyao +4 more
doaj
Jixie chuandong, 2014 Gear mesh stiffness is the foundation of the study on gear dynamics.Taking the spur gear as research object,the finite element model of the spur gear with root crack is established,and the accurate calculation method of gear mesh stiffness is proposed ...
唐进元 +3 more
doaj
Influences of tooth crack on time-varying mesh stiffness of helical gears [PDF]
Proceedings of the 2017 4th International Conference on Machinery, Materials and Computer (MACMC 2017), 2018 Yanxue Wang, Taoyuan Chen
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Time-Varying Meshing Stiffness Calculation and Dynamics Simulation of Multi-Spalling Gear
MachinesSpalling alters a gear’s time-varying meshing stiffness (TVMS), thereby affecting its vibration characteristics. However, most studies focus on single-spalling gears and overlook the possibility of multi-spalling gears. Additionally, because most spalls are irregular, traditional analytical models neglect the torsional effects that are caused by ...
Kong, Xiangxi +4 more
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Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications
Advanced Materials, EarlyView.Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko +2 more
wiley +1 more source
Nano‐Architected Metallic Metamaterial With Enhanced Fatigue Resistance via Dislocation Starvation
Advanced Materials, EarlyView.Nanoscale Ni single crystals exhibit remarkable fatigue resistance over an order of magnitude higher than that of bulk single crystals through dislocation starvation. By translating this mechanism into geometric nano‐architecture, nano‐architected Ni single‐crystal metamaterials achieve about twice the fatigue resistance of the bulk, despite their ...
Kota Sugisaka +7 more
wiley +1 more source