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Nonlinear dynamic analysis and hypernormal form of truss core sandwich plates
Jing Li1, Ziyu Guo1, Yinzhu Quan1
1College of Applied Sciences, Beijing University of Technology, Beijing, P. R. China.
Journal of Applied Biomaterials & Functional Materials
|April 6, 2018
Summary
This study explores the dynamic behavior of Kagome sandwich plates with truss cores under combined excitations. Findings offer theoretical guidance for vibration control in aerospace applications.
Area of Science:
- Materials Science
- Mechanical Engineering
- Aerospace Engineering
Background:
- Truss core materials represent advanced ultra-lightweight structures with versatile properties.
- These materials are increasingly adopted in the aerospace sector for their performance benefits.
Purpose of the Study:
- Investigate the dynamic behavior of 3D Kagome sandwich plates with truss cores.
- Analyze responses under combined transverse and in-plane excitation, specifically focusing on 1:1 internal resonance.
Main Methods:
- Utilized the method of multiple scales to derive averaged equations.
- Applied normal form theory for nonlinear system analysis.
- Employed numerical simulations to examine periodic motions and dynamic behaviors.
Main Results:
- Presented numerical results detailing the nonlinear dynamic behavior of truss core sandwich plates.
- The study provides crucial theoretical insights for effective vibration control strategies.
Conclusions:
- Gained significant understanding of the model's parameter sign, influenced by material properties.
- Results offer a foundation for optimizing truss core sandwich plate design and performance.
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