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Method for establishing excavating, material-taking and cutting resistance time history simulation model of bucket wheel machine

A technology of cutting resistance and time history, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as computer model simulation, and achieve the effect of reducing void ratio

Active Publication Date: 2015-05-13
HUNAN CHANGZHONG MACHINERY
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for creating a simulation model of the cutting resistance time history of excavation and reclaiming by a bucket wheel machine, so as to solve the technical problem that the process of excavating bulk materials by a bucket wheel cannot be simulated using a computer model

Method used

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  • Method for establishing excavating, material-taking and cutting resistance time history simulation model of bucket wheel machine
  • Method for establishing excavating, material-taking and cutting resistance time history simulation model of bucket wheel machine
  • Method for establishing excavating, material-taking and cutting resistance time history simulation model of bucket wheel machine

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specific Embodiment

[0073] 1) Determine the actual stockpile geometry and parameters

[0074] The ore stockpile in a stockyard is in the shape of a square pyramid, and its stacking angle is 42 degrees; the length of the lower bottom surface = 5.5m, the width = 3.6m; the corresponding upper top surface length = 1.4m, width = 2.4m; stockpile Height = 2.8m.

[0075] Take the maximum size of the three-dimensional material accumulation body: length = 5.5m, width = 3.6m, height = 2.8m.

[0076] 2) Incorporate the stockpile model into the spatial rectangular coordinate system, and according to the agreement in 2.a, the modeling dimensions of the stockpile model in the X, Y, and Z coordinate directions are:

[0077] Lx=3.6m, Ly=2.8m, Lz=5.5m, the radius of the spherical particle unit is R=0.075m;

[0078] The number of particle units in the X direction is

[0079] The number of particle units in the Y direction is Ny = int ( Ly ...

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Abstract

The invention provides a method for establishing an excavating, material-taking and cutting resistance time history simulation model of a bucket wheel machine. The method comprises the following steps of establishing a material pile model; establishing a bucket finite unit model; and combining the material pile model and the bucket finite unit model. A sphere particle unit is coupled with the finite unit to establish the simulation model creatively, and model data required for simulation of a cutting resistance time history are provided.

Description

technical field [0001] The invention relates to the technical field of design and analysis of novel simulation modeling, in particular to a method for creating a time-history simulation model of bucket wheel excavation, reclaiming and cutting resistance. Background technique [0002] The design, manufacture and theoretical research of bucket wheel machines have a history of more than 100 years. During this period, German scholars studied the relationship between the cutting resistance coefficient of bucket wheel machines and rock properties; former Soviet scholars proposed the empirical formula of dynamic load, the relationship between the viscosity of excavated materials and cutting force; the design of bucket wheel machines in my country usually adopts the cutting resistance coefficient to calculate the average cutting resistance. The methods and formulas of these related resistance calculation models have nothing to do with the time variable, and the time-load history rel...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 孙小卫王德森何路茵丁宁贺浩
Owner HUNAN CHANGZHONG MACHINERY
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