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A Dynamic Response Analysis Method of Aggregated Tensioned Integral Structure Based on Sliding Cable Elements of Multibody System

A technique for tensing monolithic structures and multi-body systems, applied in special data processing applications, instruments, calculations, etc., and can solve difficult, indescribable, ill-conditioned stiffness matrices and other problems

Active Publication Date: 2019-11-26
DALIAN UNIV OF TECH
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Problems solved by technology

However, the analysis of such problems by the finite element method may face difficulties in numerical solution, such as problems such as ill-conditioned stiffness matrices
In addition, when the compression member is not a slender body, it will be difficult or even impossible to describe its 6-DOF movement in space using rod elements

Method used

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  • A Dynamic Response Analysis Method of Aggregated Tensioned Integral Structure Based on Sliding Cable Elements of Multibody System
  • A Dynamic Response Analysis Method of Aggregated Tensioned Integral Structure Based on Sliding Cable Elements of Multibody System
  • A Dynamic Response Analysis Method of Aggregated Tensioned Integral Structure Based on Sliding Cable Elements of Multibody System

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[0085] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0086] Such as Figure 1-Figure 9 As shown, a method for analyzing the dynamic response of an aggregated tensegrity structure based on the sliding rope unit of a multibody system has the following steps:

[0087] S1. Transform the traditional tensegrity structure system into a multi-body system:

[0088] Considering the compression member i...

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Abstract

The invention discloses a dynamic response analyzing method of an aggregation type tensegrity structure based on a sliding rope unit of a multi-body system. The method comprises the following steps that firstly, a traditional tensegrity structure system is transformed into the multi-body system; secondly, based on a traditional rope unit of the multi-body system, the sliding rope unit of the multi-body system is built; thirdly, a multi-body dynamical system equivalence model of the aggregation type tensegrity structure is built by using the sliding rope unit in the second step; fourthly, a differential algebra equation set of multi-body dynamics is solved so as to get the dynamic response of the aggregation type tensegrity structure. In the dynamic response analyzing method, a new strategyof statics and dynamics analysis of the aggregation type tensegrity structure is provided. Compared with an existing non-linear finite element method, the multi-body dynamics modeling analysis is adopted, the modeling process is simple and universal, the operation is simple, and the modeling process is more suitable for the objective physical motion properties of the tensegrity structure system.

Description

technical field [0001] The invention relates to the technical field of dynamic analysis of tensegrity integral structures, in particular to a method for analyzing the dynamic response of an aggregated tensegrity integral structure based on a multi-body system sliding rope unit. Background technique [0002] In recent years, the theoretical research and application of active structures has become a frontier hot issue in the fields of civil, mechanical, aerospace and other practical engineering. Due to the advantages of active units in the working process, active structures can become dynamic objects that can blend with the environment. Among them, the tensegrity structure is one of the typical active structures. It is a spatial grid structure in a state of self-stress, which maintains a stable working state through the interaction of its own internal tension and compression components. Since the tensegrity structural system has the characteristics of light weight, high stren...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 阚子云彭海军李飞张盛陈飙松
Owner DALIAN UNIV OF TECH
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