Fatigue Strength Analytical Study of Truck-Mounted Concrete Pump

Abstract:

This paper is based on the design of the boom system of concrete pump car.fatigue strength of the boom system is analysed detailedly after completing a series of work, such as the boom system simulation, static strength , the stability analysis and structural optimization. Analysis shows that the easiest damaged location of the boom system is in the joint of the third boom, that is the place of the maximum stress in static analysis of the boom system.The safety coefficient is 1.393 after finishing fatigue analysis,and the numerical value is still bigger than specified safety coefficient, namely 1.3;the minimum life total amount (cycle) is 323500, which occurs in the third quarter boom, that is the place of the maximum stress in static strength analysis of the boom system; the fatigue strength of the boom system satisfy the requirement.These research work provide reliable reference for the design and improvement of the boom structure.

• Periodical: Advanced Materials Research (Volumes 295-297)
• Pages: 2620-2623
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.295-297.2620
• Online since: July 2011
• Authors: Xin Xiang Zhou, Nan Nan Ren, Shu Jun Guo, Yan Ling Tang, Yu Cui, Rong Liang Tian
• Keywords: Boom System, Concrete Pump Car, Fatigue Strength, Fatigue Strength Reduction Factor, Safety Coefficien, Stress Cycling

References

[1] GuoLiXin ChenChangZheng. Concrete pump car cloth institutions level under dynamic analysis

[2] China national standardization management committee. GB/T1591 -- 2008. With low-alloy steels strength [S].aashto (2008)

[3] China national standardization management committee. GB/T3811 -- 2008. Crane design specification [S]. 2008,16 ~ 20

[4] Xinxiang Zhou , Yu Cui , Nannan Ren.Strength and Finite Element Analysis of the Boom System of Truck-mounted Concrete Pump.AEMT2011

[5] China auto standardization technical committee. T718 - QC / 2004. The concrete pump car [S].beijing: China plans to press, 2005,17 ~ 18

[6] John Dalsgaard S ø rensen and Jesper Tychsen.. Fatigue order of Load Carrying Fillet Welds - [J]. J Mech at all Offshore Arct. Eng, 128, 10 (2006)

[7] Alldrew. James Ridnour Methodology for evaluating vehicle fatigue act and durability. PhD thesis, The leads of Tennessee, 2003.12. Knoxville

[8] Sigmund Kyrre As Fatigue assessment of automotive j practices. PhD thesis by Norwegian of Science, Technology and leads, Norwegian, 2002.8

[9] ZhengChangSong, Solid Works GuoJun. 2006 Chinese mechanical design - advanced application examples [M].beijing: mechanical industry press, 2006.200 ~ 209,215 ~ 232