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Simulation method for calculating dynamic response of EACLD central rigid body-cantilever beam model

A technology of dynamic response and simulation method, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problems of error, the influence cannot be ignored, and the quality of the edge and end elements is not considered, and the effect of small error is achieved.

Active Publication Date: 2019-06-18
NANJING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, their research did not consider the mass of the edge endmembers. When the mass of the edge endmembers increases, the impact of the mass cannot be ignored, which may lead to large errors

Method used

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  • Simulation method for calculating dynamic response of EACLD central rigid body-cantilever beam model
  • Simulation method for calculating dynamic response of EACLD central rigid body-cantilever beam model
  • Simulation method for calculating dynamic response of EACLD central rigid body-cantilever beam model

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Embodiment 1

[0066] The present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments. It is obvious that the described embodiment is only a certain specific embodiment of the present invention. All other embodiments obtained under the premise all belong to the protection scope of the present invention.

[0067] The embodiment of the present invention discloses a simulation method for calculating the dynamic response of the EACLD central rigid body-cantilever beam model, the specific method is as follows:

[0068] Step 1. For the EACLD central rigid body-cantilever beam model, the mass of the additional mass point is 0 and 0.005Kg, and the equivalent spring stiffness k is 10 6 N / m, proportional control gain K p , derivative control gain K d 1 and -0.005 respectively, the coverage rate of the active and passive control layers is 60%, the initial driving torque τ=0.5N m, the number of modes is 4, the simulation time is 0.5 seconds...

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Abstract

The invention relates to a simulation method for calculating dynamic response of an EACLD (Enhanced active constrained layer damping) central rigid body-cantilever beam model. According to the invention, on the basis of a traditional active and passive hybrid control method, the influence of the side end element mass and the equivalent spring rigidity is considered at the same time, and high-orderrigid-flexible coupling dynamic equation of a model is established; And numerical simulation is performed on the dynamic response. MATLAB software is used for carrying out numerical simulation of theEACLD central rigid body-cantilever beam model, transverse displacement-time data of the tail end of the beam can be output; through processing of Origin software, technicians in the field can have sufficient data image data support in the dynamic response research of the system, and cross comparison of the data is carried out when other simulation software is used, and the accuracy is improved.

Description

technical field [0001] The invention belongs to the field of dynamic modeling of flexible multi-body systems, and in particular relates to a simulation method for calculating the dynamic response of an EACLD central rigid body-cantilever beam model. Background technique [0002] MATLAB is an advanced technical computing language and an interactive environment commercial mathematics software for algorithm development, data visualization, data analysis and numerical calculation. Based on MATLAB, dynamic modeling of multi-body systems and calculation and analysis of dynamic responses of the system are performed widely used by scholars. Origin is a professional software for scientific drawing and data analysis. It can import data for drawing and has complete functions. [0003] Enhanced active constrained layer damping, referred to as EACLD. It is an improvement of the model based on the traditional ACLD. Two side end members with mass are added and connected with the piezoele...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCY02T90/00
Inventor 黎亮金藏桢章定国
Owner NANJING UNIV OF SCI & TECH
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