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Dynamic stiffness matrix of partial-interaction composite beams [PDF]

open access: yesAdvances in Mechanical Engineering, 2015
Composite beams have a wide application in building and bridge engineering because of their advantages of mechanical properties, constructability and economic performance. Unlike static characteristics, the methods of studying the dynamic characteristics
Guangjian Bao, Rongqiao Xu
doaj   +3 more sources

The dynamic, six-axis stiffness matrix testing of porcine spinal specimens [PDF]

open access: yesSpine Journal, 2015
Complex testing protocols are required to fully understand the biomechanics of the spine. There remains limited data concerning the mechanical properties of spinal specimens under dynamic loading conditions in six axes.To provide new data on the mechanical properties of functional spinal unit (FSU) and isolated disc (ISD) spinal specimens in 6 df ...
Timothy P Holsgrove   +2 more
exaly   +4 more sources

Dynamic Stiffness Matrix for a Beam Element with Shear Deformation [PDF]

open access: yesShock and Vibration, 1995
A method for calculating the dynamic transfer and stiffness matrices for a straight Timoshenko shear beam is presented. The method is applicable to beams with arbitrarily shaped cross sections and places no restrictions on the orientation of the element ...
Walter D. Pilkey, Levent Kitiş
doaj   +2 more sources

A dynamic stiffness model for high-speed ball screw pair with the mass center of screw nut considered

open access: yesMechanics & Industry, 2023
The development of accurate dynamic stiffness models is a key aspect in the design process of ball screws. However, variations in the nut center of mass position can affect the dynamic stiffness, which makes it difficult to develop a stiffness model.
Jin Lan   +3 more
doaj   +1 more source

Vertical Dynamic Response of Rock-Socketed Piles in a Layered Foundation [PDF]

open access: yesE3S Web of Conferences, 2020
A simplified method is presented to investigate the dynamic response of rock-socketed piles embedded in a layered foundation. The finite element method is utilized to derive the dynamic stiffness matrix equations of the pile modelled as a 1D bar, and the
Liu Chun Lin   +5 more
doaj   +1 more source

Influence of the Order Exchange of the Node Connection in the Force Analysis of Steel Structures

open access: yesFrontiers in Materials, 2022
In the mechanical analysis of steel structures, whether it is static analysis or dynamic analysis, it is necessary to establish the structural stiffness matrix first.
Shuai Luo   +4 more
doaj   +1 more source

Uninterrupted dynamic stiffening microenvironment enhances the paracrine function of mesenchymal stem cells for vascularization through chromatin remodeling

open access: yesMaterials & Design, 2022
The stiffness of extracellular matrix is dynamically stiffened during bone formation. Paracrine of angiogenic factors in mesenchymal stem cells (MSCs) plays an essential role during tissue regeneration. Whether the paracrine of angiogenic factors in MSCs
Zhenyin Chen, Yonggang Lv
doaj   +1 more source

Dynamic stiffness method in the vibration analysis of circular cylindrical shell [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2016
In this paper the dynamic stiffness method is used for free vibration analysis of a circular cylindrical shell. The dynamic stiffness matrix is formulated on the base of the exact solution for free vibration of a circular cylindrical shell according to ...
Kolarević Nevenka   +2 more
doaj   +1 more source

An Improved Dynamic Model and Matrix Displacement Model for Distributed-Compliance Bridge-Type Amplification Mechanism

open access: yesActuators, 2022
This paper establishes a matrix displacement model and an improved dynamic model for the static and dynamic performances analysis for a kind of bridge-type displacement amplification mechanism with distributed-compliance, which has better performances ...
Peixing Li, Helei Zhu, Leijie Lai
doaj   +1 more source

An Integrated Stochastic Model of Matrix-Stiffness-Dependent Filopodial Dynamics [PDF]

open access: yesBiophysical Journal, 2016
The ways that living cells regulate their behavior in response to their local mechanical environment underlie growth, development, and healing and are important to critical pathologies such as metastasis and fibrosis. Although extensive experimental evidence supports the hypothesis that this regulation is governed by the dependence of filopodial ...
Bo, Cheng   +8 more
openaire   +2 more sources

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