Results 21 to 30 of about 112,676 (303)
Negative potential energy content analysis in cracked rotors whirl response
Scientific Reports, 2021 Appearance of transverse cracks in rotor systems mainly affects their stiffness content. The stability of such systems at steady-state running is usually analyzed by using the Floquet’s theory.
Mohammad A. AL-Shudeifat +1 more
doaj +1 more source
Effect analysis of bearing and interface dynamics on tool point FRF for chatter stability in machine tools by using a new analytical model for spindle-tool assemblies [PDF]
, 2007 Self-excited vibration of the tool, regenerative chatter, can be predicted and eliminated if the stability lobe diagram of the spindle–holder–tool assembly is known.
Budak, Erhan +4 more
core +1 more source
Applied Sciences, 2023 The rolling motion of the pads with rocker back (RB) and ball and socket pivots is normally neglected in common software programs for the study of the rotor dynamic behavior of tilting pad journal bearings (TPJB).
Alberto Betti +3 more
doaj +1 more source
Effect of column base strength on steel portal frames in fire [PDF]
, 2012 In the UK, the design of steel portal frame buildings in fire is based on the Steel Construction Institute (SCI) design method, in which fire protection needs only be provided to the columns, provided that the column bases are designed to resist an ...
Comlekci, Tugrul +5 more
core +1 more source
Influence of rotary flexibility of joints on the statics and dynamics of the arch structures [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2023 The paper presents arch structures modeled by finite elements in which the nodes can be flexibly connected. Two-node curved elements with three degrees of freedom at each node were used.
Magdalena Łasecka-Plura +2 more
doaj +1 more source
Modelling, simulation and experiment of the spherical flexible joint stiffness [PDF]
Mechanical Sciences, 2018 The spherical flexible joint is extensively used in engineering. It is designed to provide flexibility in rotation while bearing vertical compression load. The linear rotational stiffness of the flexible joint is formulated.
S. Li +6 more
doaj +1 more source
A spatial impedance controller for robotic manipulation [PDF]
, 1997 Mechanical impedance is the dynamic generalization of stiffness, and determines interactive behavior by definition. Although the argument for explicitly controlling impedance is strong, impedance control has had only a modest impact on robotic ...
Broenink, Jan F., Fasse, Ernest D.
core +2 more sources
Passive Stiffness of Coupled Wrist and Forearm Rotations
Annals of Biomedical Engineering, 2014 Coordinated movement requires that the neuromuscular system account and compensate for movement dynamics. One particularly complex aspect of movement dynamics is the interaction that occurs between degrees of freedom (DOF), which may be caused by inertia, damping, and/or stiffness. During wrist rotations, the two DOF of the wrist (flexion-extension and
Will B, Drake, Steven K, Charles
openaire +3 more sources
Rotational and peak torque stiffness of rugby shoes
The Foot, 2014 Sports people always strive to avoid injury. Sports shoe designs in many sports have been shown to affect traction and injury rates. The aim of this study is to demonstrate the differing stiffness and torque in rugby boots that are designed for the same effect.Five different types of rugby shoes commonly worn by scrum forwards were laboratory tested ...
Moez S. Ballal +6 more
openaire +3 more sources
A Measurement Device for Rotational Stiffness of the Eye [PDF]
Journal of Medical Devices, 2008 Objective: A measurement of rotational stiffness of the human eye is necessary, without exerting forces to the eye. Background: Strabismus is a disorder in which the visual axes of the eyes are misaligned. In strabismus surgery, the muscles that drive the eye are altered to compensate for the deviating angle of the eye.
Thijs R. de Graaf +5 more
openaire +1 more source