Topological parameter hybrid optimization method for nonlinear dynamic system structure of high-speed light load mechanism

A non-linear dynamic and system structure technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as not being able to adapt to high-speed light-load mechanisms, and achieve the effect of meeting design requirements and improving performance

Active Publication Date: 2016-01-13
GUANGDONG UNIV OF TECH
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0030] The purpose of the present invention is to avoid the deficiencies in the prior art and provide a hybrid optimization method for the structural topology parameters of the nonlinear dynamic system of the high-speed light-load mechanism, so as to solve the problem that the existing method ignores the influence of the inertial load in the structural optimization process and cannot be adapted to Problems with high-speed light-load mechanisms

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Topological parameter hybrid optimization method for nonlinear dynamic system structure of high-speed light load mechanism
  • Topological parameter hybrid optimization method for nonlinear dynamic system structure of high-speed light load mechanism
  • Topological parameter hybrid optimization method for nonlinear dynamic system structure of high-speed light load mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0059] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. And the features in the embodiments can be combined with each other.

[0060] The core of the present invention is to provide a high-speed light-load mechanism nonlinear dynamic system structure topology parameter hybrid optimization method, which limits the linear structure optimization iteration in the standard ESLM to a single modification, so that the change of the inertial load caused by the structure modification can be immediately It is reflected in the optimization model to obtain the structure with the smallest change in equivalent load, and to solve the problem that the topology structure tending to 0 or 1 cannot be obtained in a single modification, continue to introduce the standard ESLM method to obtain a clear t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a topological parameter hybrid optimization method for a nonlinear dynamic system structure of a high-speed light load mechanism. According to the method, a linear structure optimization iteration of a standard ESLM (equivalent static loads method) is defined into a single modification, so that a change of an inertial load caused by a structure modification is immediately reflected into an optimization model; a structure with the minimal equivalent load change is obtained; and aiming at a problem that a topological structure tending to 0 or 1 cannot be obtained by the single modification, the standard ESLM is further introduced to obtain a clear topological optimization structure, so that the hybrid optimization of the high-speed light load mechanism on the basis of a single or maximum iteration ESLM is achieved. According to the topological parameter hybrid optimization method, equivalent loads are considered into a function of a design variable; the optimization model is reconstructed; a corresponding determining method is provided; the residual amplitude can be lowered to the maximal extent under the condition of meeting optimization conditions; compared with standard equivalent static loads, the amplitude under the same motion condition can be lowered by a half; the properties of the high-speed light load mechanism are greatly improved; and different design requirements of the high-speed light load mechanism are met.

Description

technical field [0001] The invention belongs to the technical field of structural optimization design of mechanical components, and in particular relates to a hybrid optimization method for topological parameters of a nonlinear dynamic system structure of a high-speed light-load mechanism. Background technique [0002] The precision movement of high-speed mechanism mainly involves two indexes of movement speed and movement precision. Among them, for high-speed mechanisms, when the motion acceleration reaches a certain level, the dynamic characteristics of the mechanism will change greatly, that is, the mechanism will show a "flexible" characteristic, which will lead to a high degree of nonlinearity of the mechanism under these working conditions , which brings great difficulties to the follow-up dynamic analysis and optimization of the mechanism. [0003] When the mechanism moves at high speed, the rigid body motion and elastic vibration are coupled with each other, which c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 陈新杨志军陈超然吴柏生
Owner GUANGDONG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products