Results 61 to 70 of about 112,676 (303)

Web rotational stiffness of continuous steel-concrete composite castellated beams

Fracture and Structural Integrity, 2019
Continuous composite beams can present a global instability known as lateral distortional buckling (LDB). The design code EN 1994-1-1:2004 provides a procedure for the verification of this ultimate limit state, in which the resistant bending moment is ...
Carla Cristiane Silva, Rodrigo Barreto Caldas, Ricardo Hallal Fakury, Hermes Carvalho, Jo�o Victor Fragoso Dias   +4 more
doaj   +3 more sources

Rotational stiffness determination of the semi-rigid timber-steel connection

Journal of Civil Engineering and Management, 2017
In this research, the component method implementation for determination of the rotational stiffness of timber-steel connection is shown. Component method is one of the most commonly used methods for determination of the bending moment-rotation relation ...
Tomas Gečys, Alfonsas Daniūnas
doaj   +1 more source

Stiffness Analysis Of Multi-Chain Parallel Robotic Systems [PDF]

, 2009
The paper presents a new stiffness modelling method for multi-chain parallel robotic manipulators with flexible links and compliant actuating joints. In contrast to other works, the method involves a FEA-based link stiffness evaluation and employs a new ...
Chablat, Damien, Klimchik, Alexandr, Pashkevich, Anatoly, Wenger, Philippe   +3 more
core   +3 more sources

A novel energy-efficient rotational variable stiffness actuator

2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2011
This paper presents the working principle, the design and realization of a novel rotational variable stiffness actuator, whose stiffness can be varied independently of its output angular position. This actuator is energy-efficient, meaning that the stiffness of the actuator can be varied by keeping constant the internal stored energy of the actuator ...
Shodhan Rao, Raffaella Carloni, Stefano Stramigioli   +2 more
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Sensitivity Study of Geometric Parameters on the Initial Rotational Stiffness of T-Stub Connections

Advances in Civil Engineering
To enhance the efficiency of parameter selection in the design of T-stub connections and to achieve the desired initial rotational stiffness more economically, this study comprehensively considers a range of geometric parameters.
Wei Feng, Jianrong Pan, Yihong Lin, Chenglong Jiao   +3 more
doaj   +1 more source

Numerical Analysis of the Rotational Magnetic Springs for EDS Maglev Train

CES Transactions on Electrical Machines and Systems, 2022
Different from the traditional railway trains, the combined levitation and guidance EDS maglev train is more likely to rotate after being disturbed. Therefore, the rotational electromagnetic stiffnesses are significant operating parameters for the train.
Gang Lv, Yaqing Liu, Zhixuan Zhang, Xiaodong Li   +3 more
doaj   +1 more source

Modeling Stiffness and Damping in Rotational Degrees of Freedom Using Multibond Graphs [PDF]

, 2013
A contribution is proposed for the modeling of mechanical systems using multibond graphs. When modeling a physical system, it may be needed to catch the dynamic behavior contribution of the joints between bodies of the system and therefore to ...
BARRE, Pierre-Jean, GOMAND, Julien, MALBURET, François, TOD, Georges   +3 more
core   +3 more sources

Absence of Phase Stiffness in the Quantum Rotor Phase Glass

, 2003
We analyze here the consequence of local rotational-symmetry breaking in the quantum spin (or phase) glass state of the quantum random rotor model. By coupling the spin glass order parameter directly to a vector potential, we are able to compute whether ...
A. van Otterlo, B.I. Halperin, D. Dalidovich, D. Dalidovich, D. Dalidovich, Denis Dalidovich, G. Aeppli, G. Kotliar, H. Maletta, H. Sompolinsky, I.A. Campbell, K. Binder, M. Mezard, M.V. Feigel’man, N. Read, O. Parcollet, Philip Phillips, R.E. Walstedt, S.M. Shapiro   +18 more
core   +1 more source

Constructing minimum deflection fixture arrangements using frame invariant norms [PDF]

, 2006
This paper describes a fixture planning method that minimizes object deflection under external loads. The method takes into account the natural compliance of the contacting bodies and applies to two-dimensional and three-dimensional quasirigid bodies ...
Burdick, Joel W., Lin, Qiao, Rimon, Elon
core   +1 more source