Results 21 to 30 of about 1,032 (217)
Influence of the column web panel behaviour on the characteristics of a beam-to-column joint
Journal of Civil Engineering and Management, 2013 The paper reviews the importance of evaluation of actual joint behaviour during the design and manufacture of frame construction. The authors applied the component method, which is used in Eurocode 3.
Alfonsas Daniūnas, Kęstutis Urbonas
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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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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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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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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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A Variable Stiffness Actuator Based on Leaf Springs: Design, Model and Analysis
Actuators, 2022 In order to adapt to complex and changeable mechanical conditions and make the deformable mechanisms perform well statically and dynamically, variable stiffness joints have been studied extensively.
Yifan Lu +5 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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Shock and Vibration, 2022 Based on Laplace transform and Hurwitz stability criterion, the system characteristic equation and algebraic stability criterion of the two degree-of-freedom angular free vibration of dry gas seal are derived. The effects of rotational inertia, stiffness
Liming Teng +4 more
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Bistable Mechanisms 3D Printing for Mechanically Programmable Vibration Control
Advanced Engineering Materials, EarlyView.This work introduces a 3D‐printed bistable mechanism integrated into tuned mass dampers (TMDs) for mechanically adaptive passive vibration suppression. Through optimized geometry, the bistable design provides adaptable vibration reduction across a broad range of scenarios, achieving effective vibration mitigation without complex controls or external ...
Ali Zolfagharian +4 more
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