Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Six degrees of freedom simulation method for tracked vehicles

A simulation method and technology of degrees of freedom, applied in the field of computer simulation, can solve the problems of high hardware requirements and long time-consuming, achieve the effect of realistic simulation method and solve the problem of attitude modeling

Active Publication Date: 2016-09-21
716TH RES INST OF CHINA SHIPBUILDING INDAL CORP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method takes a long time and has high requirements for hardware, which is unsatisfactory for applications with strong real-time performance.

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
  • Six degrees of freedom simulation method for tracked vehicles
  • Six degrees of freedom simulation method for tracked vehicles
  • Six degrees of freedom simulation method for tracked vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0023] Attached Figure 1~8 , The six-degree-of-freedom simulation method of a tracked vehicle of the present invention includes the following steps:

[0024] Step 1, Terrain 3D modeling: Model 3D terrain through 3D modeling software such as 3D Max, set the distance between terrain grids, and terrain material and color, and add a convex grid collision system to the terrain to make the terrain It can carry out collision detection with tracked vehicles to prevent the vehicle from penetrating the terrain due to gravity;

[0025] The distance between the terrain grids is 50mm. If the grids are too wide, the simulation fidelity is likely to be insufficient; if the grid spacing is too small, the amount of simulation calculations will increase, thereby reducing the simulation refresh frequency. The effect of the terrain grids is as follows figure 1 .

[0026] S...

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 six-degree-of-freedom simulation method for a crawler vehicle. The steps are as follows: first, 3D modeling of the 3D terrain grid and tracked vehicles is performed in advance through 3D modeling software; then the upper shape of the tracked vehicle is simplified into a BOX rigid body object, and the track of the vehicle is simplified into multiple wheels; according to the triangulation of the terrain surface, the position of the contact point between the wheels and the terrain, and determine the height of each wheel in real time; use the six-sphere collision detection method to obtain the inclination angle of the upper rigid body plane of the tracked vehicle; finally give the position and attitude formulas of the upper rigid body of the vehicle to determine the track The displacement and heading angle of the vehicle. The invention can be used for six-degree-of-freedom simulation of tracked vehicle equipment such as tanks, excavators, and bulldozers, and has the advantages of small calculation amount, simple simulation method, realistic simulation effect, etc., and is suitable for simulation training products such as engineering machinery, military armored vehicles, and products Demonstration verification, publicity and promotion and other fields have great application value.

Description

Technical field [0001] The invention relates to the field of computer simulation technology, in particular to a six-degree-of-freedom simulation method for tracked vehicles. Background technique [0002] Tracked vehicles, such as tanks, tracked excavators, tracked bulldozers and other equipment can reproduce the basic actions in the three-dimensional simulation system, but for tracked vehicles, the undulating state of the vehicle is entirely the terrain touched by the current track Therefore, it cannot be processed by treating the tracked vehicle as a wheeled vehicle. [0003] The walking system of a crawler vehicle is composed of a crawler belt and a number of road wheels. The undulation of the terrain causes the upper and lower heights of the crawler belt and the road wheel to be different, which in turn makes the undulating angle of the crawler vehicle different. In a three-dimensional environment, the ground is composed of a series of grids, and the computer uses points and po...

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 Patents(China)
IPC IPC(8): G06F17/50
Inventor 翟永翠韩海良蒋充剑杨治铎刘明皓
Owner 716TH RES INST OF CHINA SHIPBUILDING INDAL CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com