Results 11 to 20 of about 5,179,304 (300)

Dynamic Stiffness Analysis and Measurement of Radial Active Magnetic Bearing in Magnetically Suspended Molecular Pump. [PDF]

open access: yesSci Rep, 2020
Current stiffness and displacement stiffness are two important parameters of radial active magnetic bearing (RAMB) that are generally considered as constants in a control system.
Sun J, Zhou H, Ju Z.
europepmc   +2 more sources

Dynamic stiffness of nonlocal damped nano-beams on elastic foundation

open access: yes, 2021
Free and forced bending vibration of damped nonlocal nano-beams resting on an elastic foundation is investigated. Two types of nonlocal damping models, namely, strain-rate-dependent viscous damping and velocity-dependent viscous damping are considered. A
S. Adhikari, D. Karličić, X. Liu
semanticscholar   +1 more source

Modeling and Analysis of the Composite Stiffness for Angular Contact Ball Bearings

open access: yesShock and Vibration, 2020
As a core component of the motorized spindle, the dynamic stiffness of the angular contact ball bearing directly affects the dynamic characteristics of machinery.
Jianhua Li   +4 more
doaj   +1 more source

Hardness Perception Based on Dynamic Stiffness in Tapping. [PDF]

open access: yesFront Psychol, 2018
A human can judge the hardness of an object based on the damped natural vibration caused by tapping the surface of the object using a fingertip. In this study, we investigated the influence of the dynamic characteristics of vibrations on the hardness ...
Higashi K   +4 more
europepmc   +2 more sources

Modelling of Synthetic Fibre Rope Mooring for Floating Offshore Wind Turbines

open access: yesJournal of Marine Science and Engineering, 2023
Fibre ropes offer beneficial properties for mooring of floating offshore wind turbines (FOWTs). However, the mooring line’s stiffness is both load-history and load-rate dependent.
Stian H. Sørum   +3 more
doaj   +1 more source

Dynamic Stiffness Characteristics Analysis of Bogie Suspension for Rail Vehicle Based on Big Data-Driven Bench Test

open access: yesIEEE Access, 2018
The vehicle test big data has important significance for the study of vehicle performance and characteristics. Aiming at the test of the dynamic stiffness characteristics of a bogie suspension system of rail vehicles, a simplified rigid-flexible hybrid ...
Zhihui Niu   +3 more
doaj   +1 more source

Estimation of Time-Varying, Intrinsic and Reflex Dynamic Joint Stiffness during Movement. Application to the Ankle Joint

open access: yesFrontiers in Computational Neuroscience, 2017
Dynamic joint stiffness determines the relation between joint position and torque, and plays a vital role in the control of posture and movement. Dynamic joint stiffness can be quantified during quasi-stationary conditions using disturbance experiments ...
Diego L. Guarín, Robert E. Kearney
doaj   +1 more source

Coupled Dynamic Modeling and Analysis of the Single Gimbal Control Moment Gyroscope Driven by Ultrasonic Motor

open access: yesIEEE Access, 2020
A control moment gyroscope (CMG) is a key actuator for spacecraft's attitude and stability control. But there exist micro-vibrations from high-speed flywheel, which will affect the performance of the spacecraft greatly. Due to the unbalanced mass and the
Song Pan   +4 more
doaj   +1 more source

Design, analysis and experimental validation of high static and low dynamic stiffness mounts based on target force curves

open access: yesInternational Journal of Non-Linear Mechanics, 2020
In order to improve vibration isolation, soft components can be used in engineering applications, but this can lead to excessive static deflection. An ideal vibration isolator should have a high static stiffness to ensure that it has sufficient load ...
Yu Sun   +5 more
semanticscholar   +1 more source

Analytical Formulation Of Dynamic Stiffness

open access: yesJournal of Sound and Vibration, 1994
Abstract The dynamic stiffness matrix method enables one to model an infinite number of natural modes by means of a small number of unknowns. The method has been extended to skeletal structures with uniform or non-uniform, straight or curved, damped or undamped beam members.
Zeng, SP, Leung, AYT
openaire   +4 more sources

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