Results 31 to 40 of about 17,339 (289)

Dynamics analysis of hyperboloidal-type normal circular-arc gears

Nantong Daxue xuebao. Ziran kexue ban
To investigate the effects of meshing stiffness, transmission error, and backlash on the dynamic response of hyperboloidal-type normal circular-arc gears(HNCGs), a dynamical equation of the gear pair is established, and simulation analysis is conducted ...
CHEN Houjun; ZHANG Xiaoping; SHI Donghe; QU Chang
doaj   +1 more source

Dynamic Analysis of Gear Systems with Dynamic Mesh Stiffness and Time- Varying Bearing Stiffness

Nonlinear Dynamics
Abstract In this study, a novel analytical model for dynamic mesh stiffness of spur gears is developed using variable cross-section beam theory, explicitly accounting for driving speed effects. The dynamic mesh stiffness is determined by applying the modal superposition method to analytical model equations, and subsequently validated using both
Lili Zhang, Dayi Qu, Hanjun Jiang, Fuhao Liu, Meng Rao, Chao Ye, Baogang Li, Hao Wu, Delong Shao   +8 more
openaire   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

Advanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De, Giovanni Meli, Meysam Khaleghian, Anahita Emami   +3 more
wiley   +1 more source

Time-varying mesh stiffness of gears under interfacial characteristic effects

Advances in Engineering Research Possibilities and Challenges
To investigate the variation characteristics of gear time-varying mesh stiffness under asperity-dominated contact, utilizing the geometric relationship formula for double-tooth engagement and surface topography, the fractal theory was employed to describe the gear profile.
Hao Wu, Hanjun Jiang, Delong Shao
openaire   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

Advanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud, Jakob Gruber, Hakan Göçerler, Pierluigi Bilotto, Christian Gierl‐Mayer, Elham Loni, Michael Naguib, Carsten Gachot   +7 more
wiley   +1 more source

NONLINEAR DYNAMIC RESPONSES OF LOCOMOTIVE EXCITED BY RAIL CORRUGATION AND GEAR TIME-VARYING MESH STIFFNESS

Transport, 2022
Rail corrugation is usually generated in modern railway transportations, such as high-speed railway, urban railway, and heavy-haul railway. It is one of the major excitations to the wheel–rail dynamic interaction, which will cause extra vibration and noise, failures, or even risk of derailment to the vehicle and its components.
Chen, Zaigang, Zhang, Jie, Wang, Kaiyun, Liu, Pengfei   +3 more
openaire   +3 more sources

A time-frequency analysis approach for condition monitoring of a wind turbine gearbox under varying load conditions [PDF]

, 2015
This paper deals with the condition monitoring of wind turbine gearboxes under varying operating conditions. Generally, gearbox systems include nonlinearities so a simplified nonlinear gear model is developed, on which the time–frequency analysis method ...
Antoni, Antoni, Badaoui, Bartelmus, Bartelmus, Chaari, Endo, Feldman, Feng, Flandrin, G. Manson, Gabor, Howard, Huang, I. Antoniadou, Inalpolat, Inalpolat, Junsheng, K. Worden, Kahraman, Kahraman, Kahraman, Lim, Maragos, Ozguven, Parey, Parey, Parker, Peng, Ricci, Stander, Stander, Staszewski, Staszewski, T. Barszcz, Theodossiades, Theodossiades, Vaishya, W.J. Staszewski, Wang, Worden, Wu   +41 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

A Semi-analytical Calculation Method for Time-varying Meshing Stiffness and Transmission Error of Spiral Bevel Gear

Jixie chuandong, 2019
The traditional method of calculating time-varying meshing stiffness of spiral bevel gears mostly adopted finite element static analysis method, but it needed to be calculated many times, also the single tooth meshing stiffness calculated by the mean ...
Liao Ping, Wei Jing, Zhang Aiqiang, Zhang Weiqing   +3 more
doaj  

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source