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A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffnessmatrix and domain reduction methods

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 10-24 doi: 10.1007/s11709-022-0904-3

Abstract: The free-field responses are first obtained using the stiffness matrix method based on plane-wave assumptions

Keywords： underground structures     seismic response     stiffness matrix method     domain reduction method     P-SV waves    

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Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 289-299 doi: 10.1007/s11465-009-0064-3

Abstract: The paper proposes an identification method of the dynamic stiffness matrix of a bearing joint regionThe author deduces an identification model of the dynamic stiffness matrix from the synthetic substructureThe dynamic stiffness matrix of the bearing joint region can be identified by measuring the matrix ofmodel, agrees with experimental results, and there is very high reliability in the identified dynamic stiffnessmatrix of the bearing joint region.

Keywords： frequency response function (FRFs)     dynamic stiffness     finite element     synthetic substructure method     joint    

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Meshing stiffness property and meshing status simulation of harmonic drive under transmission loading

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0674-6

Abstract: The meshing forces and torsional stiffness of the HD are nonlinear with the torsional angle.

Keywords： harmonic drive     meshing flexibility matrix     meshing force     loading backlash     flexspline     contact analysis    

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Axisymmetric loading on nanoscale multilayered media

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 1,   Pages 152-164 doi: 10.1007/s11709-022-0895-0

Abstract: Each layer stiffness matrix is derived based on the general solutions of stresses and displacements obtained

Keywords： functionally graded layer     Gurtin–Murdoch surface elasticity     multilayered medium     size dependency     stiffnessmatrix    

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Nonlinear analysis of cable structures using the dynamic relaxation method

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 253-274 doi: 10.1007/s11709-020-0639-y

Abstract: To utilize this scheme, investigators have suggested various stiffness matrices for a cable element.

Keywords： nonlinear analysis     cable structure     stiffness matrix     dynamic relaxation method    

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Biophysical Regulation of Cell Behavior—Cross Talk between Substrate Stiffness and Nanotopography Review

Yong Yang, Kai Wang, Xiaosong Gu, Kam W. Leong

Engineering 2017, Volume 3, Issue 1,   Pages 36-54 doi: 10.1016/J.ENG.2017.01.014

Abstract:

The stiffness and nanotopographical characteristics of the extracellular matrix (ECM) influence numerousThe effects of stiffness and topographical cues on cell behavior have previously been reviewed, respectively; however, the interwoven effects of stiffness and nanotopographical cues on cell behavior have not beenHerein, we first review the effects of substrate stiffness and nanotopography on cell behavior, and then

Keywords： Extracellular matrix     Stiffness     Nanotopography     Adhesive ligands     Cell behavior    

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Mechanical design and analysis of a novel variable stiffness actuator with symmetrical pivot adjustment

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 711-725 doi: 10.1007/s11465-021-0647-1

Abstract: Thus, this paper aims to design a novel variable stiffness actuator (VSA) that can provide safer physicalVSA follows the idea of modular design, mainly including a variable stiffness module and a drive moduleThe variable stiffness module transmits the motion from the drive module in a roundabout manner, makingAs the key component of the variable stiffness module, a stiffness adjustment mechanism with a symmetricalExperiment results show that the VSA stiffness is close to the theoretical design stiffness.

Keywords： variable stiffness actuator     variable stiffness module     drive module     symmetrical structure     double-deck    

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The Fibrillar Matrix: Novel Avenues for Breast Cancer Detection and Treatment Review

Rasha Rezk,  Raquel Marín-García,  Annica K.B.Gad

Engineering 2021, Volume 7, Issue 10,   Pages 1375-1380 doi: 10.1016/j.eng.2021.04.024

Abstract: These fibers increase the mechanical stiffness of the tissue, which has long been used for tumor diagnosisWe also describe how biomaterial models make it possible to understand how the stiffness and viscosity

Keywords： Breast cancer     Tissue stiffness     Cancer metastasis     Cell migration     Bioengineered scaffold     Viscosity    

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Comparison of indices for stiffness performance evaluation

Giuseppe CARBONE, Marco CECCARELLI,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 270-278 doi: 10.1007/s11465-010-0023-z

Abstract: This paper addresses the problem of a numerical evaluation of the stiffness performance for multibodyStiffness indices are computed and compared for a case study.Results are used for comparing the effectiveness of the stiffness indices.

Keywords： robotics     stiffness     performance indices    

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New nonlinear stiffness actuator with predefined torque‒deflection profile

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0721-3

Abstract: A nonlinear stiffness actuator (NSA) could achieve high torque/force resolution in low stiffness rangeand high bandwidth in high stiffness range, both of which are beneficial for physical interaction between

Keywords： compliant actuator     nonlinear stiffness actuator     nonlinear spring     predefined torque−deflection profile    

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Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0691-5

Abstract: It achieves finger stiffness adjustability according to the biologically inspired stiffness variationprinciple of discarding some mobilities to adjust stiffness.The mechanical design of the finger and its stiffness adjusting methods are elaborated.The stiffness characteristics of the finger joint and the actuation unit are analyzed.finger stiffness presets are provided to verify the validity of the model.

Keywords： multifingered hand     mechanism design     robot safety     variable stiffness actuator    

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Mechanical performance analysis and stiffness test of a new type of suspension bridge

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1160-1180 doi: 10.1007/s11709-021-0760-6

Abstract: A new type of suspension bridge is proposed based on the gravity stiffness principle.The rigid webs connect the main cable and main girder to form a truss that can improve the bending stiffnessbraces connect the main cables to form a closed space truss structure that can improve the torsional stiffnessA stiffness test was carried out on the new type of suspension bridge with a small span, and the results

Keywords： new type of suspension bridge     stiffness test     mechanical performance     railway bridge     space truss    

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Decellularized extracellular matrix mediates tissue construction and regeneration

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 56-82 doi: 10.1007/s11684-021-0900-3

Abstract: Contributing to organ formation and tissue regeneration, extracellular matrix (ECM) constituents provideContaining the crucial traits of the cellular microenvironment, ECM substitutes mediate cell–matrix interactions

Keywords： decellularized extracellular matrix     3D culture     organoids     tissue repair    

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Investigating the influence of delamination on the stiffness of composite pipes under compressive transverse

Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1316-1323 doi: 10.1007/s11709-019-0555-1

Abstract: The effect of delamination on the stiffness reduction of composite pipes is studied in this research.The stiffness test of filament wound composite pipes is simulated using cohesive zone method.geometrical parameters including delamination size and its position with respect to loading direction on stiffnessAt first, finite element results for stiffness test of a perfect pipe without delamination are validateddirections and also its orientation with respect to loading direction on delamination propagation and stiffness

Keywords： delamination     composite pipes     stiffness test     cohesive zone method    

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Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0713-3

Abstract: The gear meshing stiffness (GMS) identification approach is proposed by using housing vibration signalsdiscovered in the identified GMS spectra, and the results also validate the rationality of using meshing stiffness

Keywords： gearbox fault diagnosis     meshing stiffness     identification     transfer path     signal processing    

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Title Author Date Type Operation

A numerical framework for underground structures in layered ground under inclined P-SV waves using stiffnessmatrix and domain reduction methods

Journal Article

Identification of dynamic stiffness matrix of bearing joint region

Feng HU, Bo WU, Youmin HU, Tielin SHI

Journal Article

Meshing stiffness property and meshing status simulation of harmonic drive under transmission loading

Journal Article

Axisymmetric loading on nanoscale multilayered media

Journal Article

Nonlinear analysis of cable structures using the dynamic relaxation method

Mohammad REZAIEE-PAJAND, Mohammad MOHAMMADI-KHATAMI

Journal Article

Biophysical Regulation of Cell Behavior—Cross Talk between Substrate Stiffness and Nanotopography

Yong Yang, Kai Wang, Xiaosong Gu, Kam W. Leong

Journal Article

Mechanical design and analysis of a novel variable stiffness actuator with symmetrical pivot adjustment

Journal Article

The Fibrillar Matrix: Novel Avenues for Breast Cancer Detection and Treatment

Rasha Rezk,  Raquel Marín-García,  Annica K.B.Gad

Journal Article

Comparison of indices for stiffness performance evaluation

Giuseppe CARBONE, Marco CECCARELLI,

Journal Article

New nonlinear stiffness actuator with predefined torque‒deflection profile

Journal Article

Mechanical design, modeling, and identification for a novel antagonistic variable stiffness dexterous

Journal Article

Mechanical performance analysis and stiffness test of a new type of suspension bridge

Journal Article

Decellularized extracellular matrix mediates tissue construction and regeneration

Journal Article

Investigating the influence of delamination on the stiffness of composite pipes under compressive transverse

Sattar MALEKI, Roham RAFIEE, Abolfazl HASANNIA, Mohammad Reza HABIBAGAHI

Journal Article

Gear fault diagnosis using gear meshing stiffness identified by gearbox housing vibration signals

Journal Article