Results 21 to 30 of about 23,182 (263)
Applied Sciences, 2023 The rotational stiffness of the pocket-type connection used in system scaffolding to join horizontal members and vertical members was evaluated. To investigate the rotational stiffness of connections when subjected to bending moments in the downward ...
Dae-Hyun Chung, Jeong-Hun Won
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Stiffness and arthroscopic rotator cuff repair: a literature review
Annals of Joint, 2023 Tendon retear is the most common complication following rotator cuff repair surgery. Understanding the factors that are associated with greater risks of retear is important so surgeons can provide accurate prognostic information to patients. Advanced age and larger tear size have been shown to be associated with greater risk of retear at 6 months using
Guo, Allen A. +2 more
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Stress rotation – impact and interaction of rock stiffness and faults [PDF]
Solid Earth, 2021 Abstract. It has been assumed that the orientation of the maximum horizontal compressive stress (SHmax) in the upper crust is governed on a regional scale by the same forces that drive plate motion. However, several regions are identified where stress orientation deviates from the expected orientation due to plate boundary forces (first-order stress ...
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Journal of Rehabilitation Medicine, 2010 The aim of this study was to investigate differences in muscle stiffness between subjects with stiff shoulders and controls, and to determine the correlation between posterior shoulder muscle stiffness and range of motion of rotation.Prospective, cross-sectional study.Twenty subjects with stiff shoulder and 20 healthy subjects.Range of motion of ...
Hung, Cheng-Ju +3 more
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BuildingsIn this paper, the quasi-static reciprocating loading test was carried out for the T-stub steel middle column joints with blind-bolt connections. As the thickness of the T-stub steel increased, the damage failure modes were different.
Huanhuan Liu +4 more
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Spectral Assessment of the Effects of Base Flexibility on Seismic Demands of a Structure
Advances in Civil Engineering, 2016 Base flexibility of structures changes and can increase the demands on structural elements during earthquake excitation. Such flexibility may come from the base connection, foundation, and soil under the foundation. This research evaluates the effects of
J. Borzouie +4 more
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A design method for an unbalance vibration compensator of five-axes active magnetic bearing systems
Nihon Kikai Gakkai ronbunshu, 2015 In one of the problems of the rotary machine, unbalance vibration synchronized with rotational frequency is well known. This vibration is caused by the unbalance of the mass of the rotor, the electromagnetic force of the active magnetic bearing (AMB ...
Taiki NAKAMURA, Shinji WAKUI
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Rotation-joint stiffness modeling for industrial robots considering contacts
Advances in Mechanical Engineering, 2018 Joint flexibility has a major impact on the motion accuracy of a robotic end effector, particularly at high speeds. This work proposes a technique of precisely modeling the torsional stiffness of the rotational joints for the industrial robots.
Zhifeng Liu +4 more
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Parameter Effects on Dynamic Characteristics Analysis of Multi-Layer Foil Thrust Bearing
LubricantsThe paper studies the dynamic characteristics of a multi-layer foil thrust bearing (MLFTB). A modified efficient dynamic characteristic model is established, and the revised Reynolds equation coupled with the thick plate element and the boundary slip ...
Yulong Jiang +3 more
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Mathematics, 2021 In this work, a novel methodology for the identification of stiffness and damping rotordynamic coefficients in a rotor-bearing system is proposed. The mathematical model for the identification process is based on the algebraic identification technique ...
José Gabriel Mendoza-Larios +6 more
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