|Table of Contents|

Fatigue Analysis of Stubble Clearing Unit Knife Plate Shaft Based on EDEM and SolidWorks Simulation(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2017年05期
Page:
796-802
Research Field:
Publishing date:

Info

Title:
Fatigue Analysis of Stubble Clearing Unit Knife Plate Shaft Based on EDEM and SolidWorks Simulation
Author(s):
DUN Guo-qiang1;  CHEN Hai-tao2;  JI Wen-yi1
（1. Mechanical and Electrical Engineering College, Northeast Forestry University, Harbin 150040, China; 2.Engineering College, Northeast Agricultural University, Harbin 150030, China)
Keywords:
Soybean no-till seeder;  Stubble clearing unit;  Fatigue analysis;  EDEM simulation;  SolidWorks Simulation
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2017.05.0796
Abstract:
As a key part of oblique tossing soybean no-till seeder, stubble clearing unit’s fatigue life directly determined the reliability of machine.First, function of oblique tossing soybean no-till seeder and stubble clearing unit’s structure had been introduced, knife teeth’s soil cutting process had been simulated by EDEM and acquired soil cutting resistance force data of a set of knives and time history of all knives unit soil cutting loading tooth, finite element static analysis result of knife plate shaft by SolidWorks simulation indicate that concentrated stress was located on keyways’ end, its max stress was 119.5 MPa, smaller than allowable stresses of 45 steel, it was safe. The constant amplitude loading fatigue indicate that fatigue damage factor is 7.15 % and total life is 864 hours, shaft was safe. Damage rain flow matrix in loading history of variable amplitude fatigue indicated that most damage of model was caused by mid-low average stress cycle and smaller stress amplitude. The research provided a new method of stubble clearing unit’s fatigue analysis.

References:

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Last Update: 2017-11-01