Results 71 to 80 of about 22,885 (294)

A parametric study on the dynamic response of planar multibody systems with multiple clearance joints [PDF]

, 2010
A general methodology for dynamic modeling and analysis of multibody systems with multiple clearance joints is presented and discussed in this paper. The joint components that constitute a real joint are modeled as colliding bodies, being their behavior ...
A. Tasora, A.A. Shabana, B. Brogliato, B. Brogliato, B. Miedema, B.M. Kwak, C. Glocker, C. Glocker, C. Innocenti, D.T. Greenwood, E.J. Haug, F. Farahanchi, F. Pfeifer, F. Pfeiffer, F. Pfeiffer, G. Gilardi, H. Hertz, H.M. Lankarani, J. Ambrósio, J. Ambrósio, J. Baumgarte, J. Pang, J. Rhee, J.-S. Pang, J.A. Zukas, J.C. Trinkle, J.J. Moreau, J.M. McCarthy, M. Anitescu, M. Anitescu, M. Förg, M.T. Bengisu, N. Srivastava, O.A. Bauchau, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P.D. Panagiotopoulos, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, Paulo Flores, R.C. Smith, R.I. Leine, R.R. Ryan, R.S. Haines, S. Dubowsky, S. Dubowsky, S. Dubowsky, S. Erkaya, S. Erkaya, S. Wiggins, S.P. Timoshenko, T. Kakizaki, W. Goldsmith, W. Wu, W.M. Mansour, W.W. Gear   +64 more
core   +4 more sources

A Cu‐Based Near‐IR Active MOF with an Ion‐Pair Guest Exhibiting Versatile and Selective Gas‐Solid Reactivity

Advanced Materials, EarlyView.
The new Cu‐containing MOF (Me2NH2)(CuICl2)@[Cu4(INA)4Cl2O]·1.5dmf (3) contains a cation and an anion as guests and shows UV‐near‐mid‐IR absorption and near‐IR emission. MOF 3 shows gas‐solid reactivity in the presence of NH3 and HCOOH to yield two new 3D MOF.
Rajat Saha, Alejandro Cortés‐Villena, Silvia Gómez‐Coca, Alberto Fernández‐Alarcón, Joaquín Calbo, Raquel E. Galian, Enrique Ortí, Eliseo Ruiz, Mónica Giménez‐Marqués, Samia Benmansour, Carlos J. Gómez‐García   +10 more
wiley   +1 more source

Scavenge flow analysis of opposed-piston two-stroke engine based on dynamic characteristics

Advances in Mechanical Engineering, 2015
Opposed-piston two-stroke engine has been proposed by Beijing Institute of Technology to improve power density and complete machine balance relative to conventional engines. In order to study opposed-piston two-stroke engine scavenging flow, a scavenging
Fu-kang Ma, Chang-lu Zhao, Zhen-feng Zhao, Shuan-lu Zhang   +3 more
doaj   +1 more source

A Lie group variational integrator in a closed-loop vector space without a multiplier [PDF]

Mechanical Sciences
As a non-tree multi-body system, the dynamics model of four-bar mechanism is a differential algebraic equation. The constraints breach problem leads to many problems for computation accuracy and efficiency.
L. Bai, L. Xia, X. Ge
doaj   +1 more source

Hysteretic behavior of a belt tensioner: modeling and experimental investigation [PDF]

, 2005
In this paper we describe the modeling of the hysteretic behavior of belt tensioners. An initial experimental device is composed only of the tensioner by using forcing frequencies, preloads and deflection amplitudes.
Dufour, Regis, Manin, Lionel, Michon, Guilhem   +2 more
core   +3 more sources

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Modulational instability windows in the nonlinear Schr\"odinger equation involving higher-order Kerr responses [PDF]

, 2015
We introduce a complete analytical and numerical study of the modulational instability process in a system governed by a canonical nonlinear Schr\"odinger equation involving local, arbitrary nonlinear responses to the applied field.
Novoa, David, Nóvoa-López, José A., Tommasini, Daniele   +2 more
core   +2 more sources

Elephant‐Skin‐Inspired Porous Cementitious Tiles with Programmable Crack Networks for Passive Cooling

Advanced Materials, EarlyView.
Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang, Kun‐Hao Yu, Ji Yoon Bae, Yunchan Lee, Dorit Aviv, Shu Yang   +5 more
wiley   +1 more source

Substantiation of Rational Design of Crank Mechanism of a Wheel-Step Mover

Механика машин, механизмов и материалов
The article substantiates the rational design of the crank mechanism of a wheel-step mover. Kinematics analysis of a prototype of the wheel-step mover revealed the presence of oscillations in the vertical coordinate of the central axis during movement ...
Anatol T. Skoybeda, Vasili M. Zhukavets
doaj   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source