Results 1 to 10 of about 408,399 (309)

Influence of rubber’s viscoelasticity and damping on vertical dynamic stiffness of air spring [PDF]

open access: yesScientific Reports, 2023
Using the diaphragm-type air spring as the research object. The ratio of the vertical stiffness change caused by compressed air to the total vertical stiffness change was calculated, and it was determined that the nonlinearity of air spring vertical ...
Yinghao Hu, Jianhong Zhang, Jiangqi Long
doaj   +2 more sources

Analysis on hydraulic dynamic stiffness characteristics and experimental research of asymmetric valve-controlled asymmetric cylinder system [PDF]

open access: yesScientific Reports
Hydraulic dynamic stiffness is a crucial parameter in hydraulic systems that directly affects the hydraulic natural frequency which is the lowest in hydraulic servo systems, and its magnitude directly determines the system’s dynamic response speed ...
Li Weiwei, Han He Yong, Liu Chuiyi
doaj   +2 more sources

Free vibration analysis of transmission lines based on the dynamic stiffness method [PDF]

open access: yesRoyal Society Open Science, 2019
An improved mathematical model used to study the coupling characteristic of the multi-span transmission lines is developed. Based on the solution method for single-span cable, an expression for the dynamic stiffness of two-span transmission lines with an
Xiaohui Liu, You Hu, Mengqi Cai
doaj   +2 more sources

Calculation of the dynamic stiffness of a cantilever under torsional oscillation [PDF]

open access: yesBeilstein Journal of Nanotechnology
Atomic force microscopy using Si cantilevers provides an effective means for investigating both conservative and dissipative interactions in the vertical and lateral directions between the tip and the sample.
Keita Nishida   +2 more
doaj   +2 more sources

Dynamic characteristics of negative stiffness structure with high static and low dynamic stiffness

open access: yesFrontiers in Mechanical Engineering
Negative stiffness (NS) structures have obvious advantages in attenuating low-frequency vibration. Although most existing NS structures exhibit good damping effects, their stability is poor, limiting their application in complex mechanical systems.
Yuanshao Wang   +4 more
doaj   +2 more sources

Experimental Analysis of the Dynamic Stiffness in Industrial Robots

open access: yesApplied Sciences, 2020
Industrial robots are regularly being employed for machining tasks. As a key machining parameter, dynamic stiffness has a significant influence on robotic machining performance.
Kai Wu, Bernd Kuhlenkoetter
doaj   +3 more sources

Entangled dynamics of a stiff polymer [PDF]

open access: yesPhysical Review E, 2008
Entangled networks of stiff biopolymers exhibit complex dynamic response, emerging from the topological constraints that neighboring filaments impose upon each other. We propose a class of reference models for entanglement dynamics of stiff polymers and provide a quantitative foundation of the tube concept for stiff polymers.
Höfling, Felix   +3 more
openaire   +3 more sources

Dynamic Stiffness Analysis and Experimental Verification of Axial Magnetic Bearing Based on Air Gap Flux Variation in Magnetically Suspended Molecular Pump

open access: yesChinese Journal of Mechanical Engineering, 2020
Current and displacement stiffness are important parameters of axial magnetic bearing (AMB) and are usually considered as constants for the control system.
Jinji Sun   +3 more
doaj   +1 more source

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

Analysis on Dynamic Contact Characteristics and Dynamic Stiffness Estimating Method of Single Nut Ball Screw Pair Based on the Whole Rolling Elements Model

open access: yesApplied Sciences, 2020
The purpose of this paper is investigating the characteristics of dynamic contact and dynamic stiffness of the single nut ball screw pair (SNBSP).
Ye Chen   +3 more
doaj   +1 more source

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