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Simulation method for dynamic performance of loop accelerated loading device

A technology to accelerate loading and simulation methods, applied in image data processing, special data processing applications, 3D modeling, etc., can solve problems such as inaccurate results and deviations in calculation results, so as to improve adaptability, reduce test costs, and reduce construction costs. Effect of Model Workload

Active Publication Date: 2020-08-25
UNIV OF SCI & TECH BEIJING
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  • Application Information

AI Technical Summary

Problems solved by technology

The dynamic performance during its operation is mainly calculated by the theoretical formula method. Due to fewer factors considered, there is a large deviation in the calculation results.
On-site testing and other methods are limited by sensor technology, making the results not accurate enough.

Method used

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  • Simulation method for dynamic performance of loop accelerated loading device
  • Simulation method for dynamic performance of loop accelerated loading device
  • Simulation method for dynamic performance of loop accelerated loading device

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Embodiment Construction

[0040] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0041] Embodiments of the present invention provide a method for simulating the dynamic performance of a loop acceleration loading device, such as figure 1 As shown, the method includes the following steps:

[0042] S1. Establish and simplify the three-dimensional solid models of multiple sub-assemblies in the loop accelerated loading device in the three-dimensional solid modeling software; wherein, the multiple sub-assemblies include: pavement structure sub-assembly, motion device sub-assembly, Double-axle rear suspension assembly sub-assembly, leaf spring sub-assembly;

[0043] S2. Using the interface between the three-dimensional solid modeling software and the multi-body dynamics simulation software, import the simplified three-dimensional solid mod...

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Abstract

The invention provides a simulation method for the dynamic performance of a loop accelerated loading device, and the method comprises the steps: respectively building three-dimensional solid models ofa plurality of sub-assemblies in the loop accelerated loading device in three-dimensional solid modeling software, and simplifying the three-dimensional solid models; respectively importing the simplified three-dimensional solid model of the sub-assembly of the loop accelerated loading device into multi-body dynamics simulation software; adding an assembly body internal constraint to each sub-assembly body in multi-body dynamics simulation software; establishing an overall file of the loop accelerated loading device, importing files corresponding to the sub-assemblies into the overall file, and adding constraints among the sub-assemblies; adding a three-dimensional solid model of the pavement and the tire; applying traction force and hydraulic cylinder pressure to the overall file according to different working conditions, simulating the operation condition of the loop acceleration loading device, and exporting various characteristic parameters representing dynamic performance after simulation is finished. The test cost can be reduced, the design efficiency is improved, and the product development time is shortened.

Description

technical field [0001] The invention relates to the technical field of acceleration loading system simulation, in particular to a simulation method for dynamic performance of a loop acceleration loading device. Background technique [0002] With the development of computer technology and simulation technology, functional virtual prototype has been widely used in complex product design and analysis. Construction and simulation analysis of dynamic virtual test prototype based on commercial software and computational multibody dynamics. It provides technical means for product design, performance analysis, fault prediction and diagnosis, reliability analysis and other design and analysis. [0003] The loop accelerated loading system has a wide application prospect in testing the performance of pavement materials and pavement structure in the full-scale test section by loading the vehicle to simulate the real axle load. However, because it is a newly developed device in recent ...

Claims

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Application Information

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IPC IPC(8): G06F30/15G06T17/00G06F119/14
CPCG06F30/15G06T17/00G06F2119/14
Inventor 黄潇辉孙凤艳叶周景杨海露苗英豪汪林兵
Owner UNIV OF SCI & TECH BEIJING
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