Improvements for a Hydraulic Excavator's Boom

2014 ◽  
Vol 490-491 ◽  
pp. 510-513
Author(s):  
Sheng Bin Wu ◽  
Xiao Bao Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Concentration ◽  
Stress Distribution ◽  
High Stress ◽  
The Finite Element Method ◽  
Element Method ◽  
Concentration Phenomenon

Focus on stress concentration and high stress area, four improvements were put forward through analyzed a hydraulic excavator's boom with the finite element method under the bucket digging condition. Compared the stress distribution graph, the results show that these schemes can improve the stress concentration phenomenon and the high stress distribution areas. The practices demonstrated the effectiveness to reduce the invalidation rate of hydraulic excavator's boom.

Layout Topology Optimization for Inner Stiffeners of Excavator's Boom

2014 ◽  
Vol 915-916 ◽  
pp. 240-243
Author(s):  
Sheng Bin Wu ◽  
Xiao Bao Liu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Topology Optimization ◽  
Stress Concentration ◽  
Stress Distribution ◽  
High Stress ◽  
Optimization Method ◽  
The Finite Element Method ◽  
Evolutionary Structural Optimization ◽  
Box Structure

Aimed at the layout of inner stiffeners in excavator's boom, this paper puts forward an optimization method for the layout of box structure 's inner stiffeners and layout topology optimizes based on Evolutionary Structural Optimization (ESO). Analyzed the boom with the finite element method under the bucket digging condition, the results show that the inner stiffeners obtained by this method can improve the stress concentration phenomenon and the high stress distribution areas. The practices demonstrated the proposed method is effective and feasible.

Finite Element Method to Evaluate Effects of Hip Implant Geometry on Bone Cement Stress Distribution

2007 ◽  
Author(s):  
Yang W. Son ◽  
Douglas H. Wentz ◽  
Danny L. Levine ◽  
Todd S. Johnson
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Distribution ◽  
Failure Modes ◽  
Rotational Stability ◽  
The Finite Element Method ◽  
Hip Prostheses ◽  
Hip Implant ◽  
Cement Interface ◽  
Element Method

Loosening of cemented hip prostheses has been reported on occasion. Although a few laboratory experiments have replicated clinical failure modes, the methods appear to be very complicated and time consuming. In this analysis, the Finite Element Method was utilized to evaluate the stress distribution in a cement layer. Two distinct hip implant designs with and without grooves in the anterior/posterior surfaces were investigated. The results indicate that the features of the multiple grooves in these cemented hip implants may improve the rotational stability and reduce the cement stress at the implant-cement interface.

Prediction of Tablet Characteristics from Residual Stress Distribution Estimated by the Finite Element Method

2013 ◽  
Vol 102 (10) ◽  
pp. 3678-3686 ◽  
Author(s):  
Yoshihiro Hayashi ◽  
Takahiro Miura ◽  
Takuya Shimada ◽  
Yoshinori Onuki ◽  
Yasuko Obata ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Residual Stress ◽  
Finite Element ◽  
Stress Distribution ◽  
Residual Stress Distribution ◽  
The Finite Element Method ◽  
Element Method
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