FG-CNT reinforced composite plate vibration control method based on Spark in ocean engineering

A reinforced composite material, FG-CNT technology, applied in the field of materials engineering, can solve problems such as increased computational complexity and impaired computational accuracy, to improve efficiency and accuracy, speed up data processing speed and efficiency, and strengthen theoretical integration and The effect of practical application

Active Publication Date: 2015-12-23
SHANGHAI OCEAN UNIV
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Problems solved by technology

However, for problems such as nonlinear deformation, vibration shape, and crack growth of functionally graded CNT reinforced composites, solving th

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  • FG-CNT reinforced composite plate vibration control method based on Spark in ocean engineering
  • FG-CNT reinforced composite plate vibration control method based on Spark in ocean engineering
  • FG-CNT reinforced composite plate vibration control method based on Spark in ocean engineering

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Embodiment Construction

[0040] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0041] In order to facilitate the understanding of those skilled in the art, the following content is first defined:

[0042] FG-CNT reinforced composite material plate: Functionally gradient function CNT reinforced composite material plate.

[0043] The Hybrid Criterion: As a Weighted Average Method to Predict Multiple Properties of Reinforced Composites.

[0044]Eshelby-Mori-Tanaka continuous model: The Eshelby-Mori-Tanaka continuous model is a model that combines Eshelby's equivalent inclusion theory and Mori-Tanaka's mean stress method. Eshelby's equivalent inclusion theory proves that under the action of uniform external load, the internal elastic field of the ellipsoidal inclusion is also uniform. Mori-Tanaka's mean stress method is a method for calculating the mean stress inside a material.

[004...

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Abstract

The invention relates to an FG-CNT reinforced composite plate vibration control method based on Spark in ocean engineering. The method comprises the steps that a latest meshless method IMLS-Ritz is adopted, and a shape function which is good in smoothness and continuous in derivative is fit through values of several unrelated nodes; meanwhile, constitutive relation description of a functionally grated CNT reinforced composite plate shell is improved, and therefore the problem that how to distribute sensors or actuators to the suitable positions of CNTs to reach the optimal position where numerical analysis can be performed on structural strain is solved; the optimal solution of the collocating positions of the actuators is searched through a discrete optimization algorithm, and a cloud computing platform based on the Spark is built for massive computing data. By means of the FG-CNT reinforced composite plate vibration control method based on the Spark in ocean engineering, the problem that in a finite element method, the solution is not convergent or errors are large is solved, the data storing quantity and computing quantity are significantly improved, the computing time is shortened, and the analysis efficiency is enhanced.

Description

technical field [0001] The invention relates to the field of material engineering, in particular to marine engineering, and specifically refers to a spark-based FG-CNT reinforced composite plate vibration control method in marine engineering. Background technique [0002] In marine engineering, offshore wind power has become one of the renewable energies vigorously developed in my country and even the world. The substantial increase in energy demand has put forward higher and higher requirements for wind power technology, especially the blades, one of the key core components of wind turbines. , various mechanical and material properties such as the specific gravity, strength, and corrosion resistance of the manufacturing materials will directly affect the power generation efficiency of the entire unit; at the same time, in the field of ocean transportation, the manufacturing materials of seagoing ships, submarines, and deep-water operating devices need to be It has the charact...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 黄冬梅张律文张宇黄盖先万鑫纯
Owner SHANGHAI OCEAN UNIV
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