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Prediction method of fatigue life for concrete pump-truck(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年04期
Page:
102-106
Research Field:
Publishing date:
2011-08-20

Info

Title:
Prediction method of fatigue life for concrete pump-truck
Author(s):
YANG Ping1;  LU Peng-min2;  WANG Gang2;  SHI Chun-juan2
1. Department of Mechanical Engineering, Fujian Communications Vocational and Technical College, Fuzhou 350007, Fujian, China; 2. School of Engineering Machinery, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
mechanical engineering;  concrete pump truck;  random loading spectrum;  frequency domain;  fatigue life
PACS:
U469.65
DOI:
-
Abstract:
In order to explore the application of frequency domain method in the concrete pump fatigue life prediction, a 48-meter concrete pump truck is taken as an example, the field measurement of the random load spectrum on the structure dangerous position and the welded structure fatigue indoors test are carried out. With the experimental data, the fatigue life of the truck structure risk part is calculated by the frequency domain method and the time domain method respectively. The results show that the frequency domain method of Dirlik' probability model can reflect the structure fatigue life relatively well under the random loading for the pump truck. The relative error of the frequency domain method compared to time domain method is only 8%. 3 tabs, 9 figs, 12 figs.

References:

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Memo

Memo:
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Last Update: 2011-08-20