Dynamic properties of truss core sandwich plate with tetrahedral core

2015 ◽  
Vol 134 ◽  
pp. 869-882 ◽  
Author(s):  
J.E. Chen ◽  
W. Zhang ◽  
J. Liu ◽  
M. Sun
Keyword(s):  
Sandwich Plate ◽  
Dynamic Properties ◽  
Truss Core ◽  
Truss Core Sandwich Plate

Multi-Pulse Chaotic Dynamics of Four-Dimensional Non-Autonomous Nonlinear System for a Truss Core Sandwich Plate

2014 ◽  
Author(s):  
Wei Zhang ◽  
Qi-liang Wu
Keyword(s):  
Nonlinear System ◽  
Chaotic Dynamics ◽  
Sandwich Plate ◽  
Melnikov Method ◽  
Order Mode ◽  
Simply Supported ◽  
Truss Core ◽  
Extended Melnikov Method ◽  
Kagome Truss ◽  
Truss Core Sandwich Plate

In this paper, an extended high-dimensional Melnikov method is used to investigate global and chaotic dynamics of a simply supported 3D-kagome truss core sandwich plate subjected to the transverse and the in-plane excitations. Based on the motion equation derived by Zhang and the method of multiple scales, the averaged equation is obtained for the case of principal parametric resonance and 1:2 sub-harmonic resonance for the first-order mode and primary resonance for the second-order mode. From the averaged equation obtained, the system is simplified to a three order standard form with a double zero and a pair of pure imaginary eigenvalues by using the theory of normal form. Then, the extended Melnikov method is utilized to investigate the Shilnikov-type multi-pulse heteroclinic bifurcations and existence of chaos. The analysis of the extended Melnikov method demonstrates that there exist the Shilnikov-type multi-pulse heteroclinic bifurcations and chaos in the four-dimensional non-autonomous nonlinear system. Finally, the results of numerical simulations also show that for the nonlinear system of simply supported 3D-kagome truss core sandwich plate with the transverse and the in-plane excitations, the Shilnikov-type multi-pulse motion of chaos can happen and further verify the result of theoretical analysis.

Parametric study on nonlinear vibration of composite truss core sandwich plate with internal resonance

2016 ◽  
Vol 30 (9) ◽  
pp. 4133-4142 ◽  
Author(s):  
Jianen Chen ◽  
Wei Zhang ◽  
Min Sun ◽  
Minghui Yao ◽  
Jun Liu
Keyword(s):  
Nonlinear Vibration ◽  
Parametric Study ◽  
Internal Resonance ◽  
Sandwich Plate ◽  
Truss Core ◽  
Truss Core Sandwich Plate

Vibration reduction in truss core sandwich plate with internal nonlinear energy sink

2018 ◽  
Vol 193 ◽  
pp. 180-188 ◽  
Author(s):  
Jianen Chen ◽  
Wei Zhang ◽  
Minghui Yao ◽  
Jun Liu ◽  
Min Sun
Keyword(s):  
Sandwich Plate ◽  
Vibration Reduction ◽  
Nonlinear Energy Sink ◽  
Truss Core ◽  
Energy Sink ◽  
Truss Core Sandwich Plate ◽  
Nonlinear Energy

Slow-fast dynamics in the truss core sandwich plate under excitations with high and low frequencies

2020 ◽  
Vol 88 ◽  
pp. 382-395
Author(s):  
Zhenyang Chen ◽  
Fangqi Chen ◽  
Liangqiang Zhou
Keyword(s):  
Sandwich Plate ◽  
Low Frequencies ◽  
Truss Core ◽  
Truss Core Sandwich Plate

Nonlinear dynamic responses of a truss core sandwich plate

2014 ◽  
Vol 108 ◽  
pp. 367-386 ◽  
Author(s):  
W. Zhang ◽  
J.E. Chen ◽  
D.X. Cao ◽  
L.H. Chen
Keyword(s):  
Nonlinear Dynamic ◽  
Sandwich Plate ◽  
Dynamic Responses ◽  
Truss Core ◽  
Truss Core Sandwich Plate

Analysis on global and chaotic dynamics of nonlinear wave equations for truss core sandwich plate

2018 ◽  
Vol 94 (1) ◽  
pp. 21-37 ◽  
Author(s):  
W. Zhang ◽  
Q. L. Wu ◽  
M. H. Yao ◽  
E. H. Dowell
Keyword(s):  
Nonlinear Wave ◽  
Chaotic Dynamics ◽  
Wave Equations ◽  
Sandwich Plate ◽  
Nonlinear Wave Equations ◽  
Truss Core ◽  
Truss Core Sandwich Plate

Research on the Application of Periodic Truss-Core Structures to Structural Design of Machine Tool

2011 ◽  
Vol 194-196 ◽  
pp. 1977-1981
Author(s):  
Dong Qiang Gao ◽  
Zhi Yun Mao ◽  
Zhong Yan Li ◽  
Fei Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
Dynamic Properties ◽  
Response Analysis ◽  
Optimized Design ◽  
Element Analysis ◽  
Truss Core ◽  
The Finite Element Analysis ◽  
Harmonic Response Analysis

The modal analysis and harmonic response analysis of the machine tool table with periodic truss-core structures are analyzed and calculated by finite element analysis software-ANSYS Workbench, then we get the finite element analysis results. After comparing the results with finite element analysis results of the original machine tool table, we come to the conclusion that the dynamic properties of the machine tool table with periodic truss-core structures are better than the original machine tool table’s. It makes a base for optimized design and remanufacturing.

scholarly journals Internal Damage Identification of Sandwich Panels With Truss Core Through Dynamic Properties and Deep Learning

2020 ◽  
Vol 7 ◽  
Author(s):  
Lingling Lu ◽  
Yabo Wang ◽  
Jianquan Bi ◽  
Cheng Liu ◽  
Hongwei Song ◽  
...  
Keyword(s):  
Deep Learning ◽  
Damage Identification ◽  
Dynamic Properties ◽  
Sandwich Panels ◽  
Internal Damage ◽  
Truss Core

Experimental determination of elastic properties of the core in a thin sandwich plate with a metallic truss core

2009 ◽  
Vol 10 (5) ◽  
pp. 107-113 ◽  
Author(s):  
Dong-Gyu Ahn ◽  
Gyung-Heum Nam ◽  
Chang-Gyun Jung ◽  
Dong-Yol Yang
Keyword(s):  
Experimental Determination ◽  
Elastic Properties ◽  
Sandwich Plate ◽  
The Core ◽  
Truss Core

scholarly journals DYNAMIC BEHAVIOUR OF SANDWICH PLATE WITH DIFFERENT CORE CONFIGURATION UNDER ACTION OF IMPULSIVE LOADING

2019 ◽  
Vol 18 (4) ◽  
pp. 506-526
Author(s):  
Ammar M Nemah ◽  
Hatem H Obied
Keyword(s):  
Finite Element ◽  
Sandwich Plate ◽  
Dynamic Properties ◽  
Time History ◽  
Impulsive Loading ◽  
Von Mises Stress ◽  
Finite Element Models ◽  
Out Of Plane ◽  
Bending Loads ◽  
Von Mises

Steel sandwich structures with honeycomb and corrugated cellular cores have demonstrated the capability of supporting significant static bending loads while also enabling effective mitigation of impulse loads, the main objectives to use these structures is weight reduction and isolate or reduce the deflection and stress. This research aims to study the effect of dynamic load on the dynamic properties of various types of sandwich cores then find the best model that withstand high stresses and dissipate loads with less mass was possible. The studied model of sandwich is of dimensions (500x500x100) mm with five cells. Four types of steel sandwich plate (SSP) finite element models of various core types have been created: (1) triangle corrugated core, (2) trapezoid corrugated core, (3) square honeycomb and (4) out-of plane hexagonal honeycomb, the mass of various types was constant with value of 13.75 kg. The SSP types were compared by using ANSYS (15.0) APDL software.The finite element models are examined under the effect of transient concentrated stepped load of (350N) during 10ms. The time history response showed that the minimum von-Mises stress and minimum deflection occur at triangle corrugated SSP with values of stress (12.5Mpa) and deflection (3.8 ), but in energy absorption the square honeycomb is the best type with reduction of stress (99.65%) and reduction of deflection of (98.95%).

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