Research on Piston Pin's Strength Calculation Based on FEA

2011 ◽  
Vol 341-342 ◽  
pp. 296-300
Author(s):  
Bing Wei Ji ◽  
Jing Lu Li ◽  
Xiao Ping Chen
Keyword(s):  
Static Strength ◽  
Strength Calculation ◽  
Strength Analysis ◽  
Verification Method

The method of piston pin's strength calculation base on FEA is proposed to solve the pin's failure. The pin's circular deformation is measured by node displacements, and the conventional static strength analysis is replaced by multi-case fatigue calculation. Compared with the conventional strength verification method, the FEA result is more accurate with the reality.

Fatigue Strength Analysis of the Actuator for the Steering Gear Based on DFR

2012 ◽  
Vol 226-228 ◽  
pp. 850-854
Author(s):  
Gang Duan ◽  
Hong Jie Yuan
Keyword(s):  
Finite Element Analysis ◽  
Fatigue Strength ◽  
Static Strength ◽  
Strength Analysis ◽  
Analysis Software ◽  
Element Analysis ◽  
Theoretical Derivation ◽  
Verification Method ◽  
Stiffness Model ◽  
Damage Theory

In order to assess whether the durability of the designed product meets the requirements or not, the fatigue strength should be analyzed in product designing stage. With the help of ANSYS finite element analysis software, the detail fatigue rating (DFR) method and the linear cumulative damage theory are used to analyze the actuator from three aspects of the static strength, stiffness and fatigue strength. A Stiffness Model of the Actuator has been built in the static strength analysis. The paper also highlighted the theoretical derivation of the DFR and the application in the fatigue strength calculation of the actuator. In practical projects, this method can be applied to similar products, and it can be used as a verification method for design optimization.

Static strength analysis of CANDU-6 reactor fuel bundle

2000 ◽  
Vol 200 (3) ◽  
pp. 407-419 ◽  
Author(s):  
Moon-Sung Cho ◽  
Ki-Seob Sim ◽  
Ho Chun Suk ◽  
Seok-Kyu Chang
Keyword(s):  
Static Strength ◽  
Reactor Fuel ◽  
Strength Analysis ◽  
Fuel Bundle

Study on Failure Trend of Single Shear Hydraulic Lift Platform Structure on Basis of Static Strength Analysis

2013 ◽  
Vol 446-447 ◽  
pp. 544-548
Author(s):  
Ying Shi Sun ◽  
Qian Hui Ma ◽  
Liang Xuan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element Analysis ◽  
Static Strength ◽  
Nonlinear Finite Element ◽  
Hydraulic Lift ◽  
Strength Analysis ◽  
Element Analysis ◽  
Railway Vehicles ◽  
Single Shear

To ensure the safe use of single shear hydraulic lift platform for processing and manufacturing railway vehicles. This paper analyzes the use conditions of single shear hydraulic lift platform, and makes a contact nonlinear finite element analysis on various typical use conditions. The positions of parts subject to danger can be found out through the results of static strength analysis, which finds out the weaknesses and prejudges the failure trend of parts, and which provides guidance for prejudging the faults in actual production and can prevent occurrence of accidents.

The Generalized Dynamic Factor of Hydraulic Excavator Working Device

2015 ◽  
Vol 757 ◽  
pp. 75-80
Author(s):  
Zhi Gui Ren ◽  
Jin Chen ◽  
Xiao Ping Pang ◽  
Dong Sheng Zhang
Keyword(s):  
Statistical Analysis ◽  
Dynamic Stress ◽  
Static Strength ◽  
Static Stress ◽  
Strength Analysis ◽  
Dynamic Factor ◽  
Hydraulic Excavator ◽  
Test Points ◽  
Working Device

Synchronous test platforms were built to test the dynamic stress and working device attitude. The dynamic stress spectrums of all the test points under a variety of common conditions were obtained. The digging gestures corresponding to the peak of the dynamic stress spectrums were found out and taken as the specified digging gestures for the calculation of the static stress. The static stress nephogram of working device under the specified digging gestures was calculated using traditional static strength analysis. By conducting statistical analysis on the ratio of dynamic stress and static stress of all the testing points. Then, the range of generalized dynamic factor of working device was obtained.

Kinetics Analysis and Simulations on Load Fork Mechanism in Forward-Type Stacker

2010 ◽  
Vol 37-38 ◽  
pp. 608-613
Author(s):  
Jian Yu Bai ◽  
Senlin Tong ◽  
Zai He Yu ◽  
Di Zheng
Keyword(s):  
Static Strength ◽  
Strength Analysis ◽  
Static Force ◽  
Force Analysis ◽  
Kinetics Analysis ◽  
Strength Design ◽  
Simulation Results

It is frequently reported by customers that the lower-left and lower-right wheels in the load fork mechanism of a kind of forward-type stacker designed based on static strength analysis are abraded faster than expected. In this paper, we studied by means of kinetics analysis and simulations the forces applied on parts of the fork mechanism. The simulation results show that the maximum values of instantaneous forces during operations are much higher than those derived based static force analysis, and thus explained the reason of the above-mentioned abnormal abrasion. The results also mean that static force analysis is not suitable for part strength design. Instead, one shall adopt kinetics analysis to explore the instantaneous forces in design.

scholarly journals Static strength analysis of dragonfly inspired wings for biomimetic micro aerial vehicles

2016 ◽  
Vol 29 (2) ◽  
pp. 411-423 ◽  
Author(s):  
Praveena Nair Sivasankaran ◽  
Thomas Arthur Ward ◽  
Rubentheren Viyapuri ◽  
Mohd Rafie Johan
Keyword(s):  
Static Strength ◽  
Strength Analysis ◽  
Micro Aerial Vehicles ◽  
Aerial Vehicles

Study on Failure Trend of Double Column Deflection Machine Structure on Basis of Static Strength Analysis

2013 ◽  
Vol 351-352 ◽  
pp. 964-968
Author(s):  
Sheng Yong Cao ◽  
Liang Xuan ◽  
Ying Shi Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element Analysis ◽  
Static Strength ◽  
Nonlinear Finite Element ◽  
Strength Analysis ◽  
Element Analysis ◽  
Railway Vehicles ◽  
Actual Production ◽  
Machine Structure

To ensure the safe use of double column deflection machine for processing and manufacturing railway vehicles. This paper analyzes the use conditions of double column deflection machine, and makes a contact nonlinear finite element analysis on various typical use conditions. The positions of parts subject to danger can be found out through the results of static strength analysis, which finds out the weaknesses and prejudges the failure trend of parts, and which provides guidance for prejudging the faults in actual production and can prevent occurrence of accidents.

scholarly journals A Shear Strength Model for a Subsidence Backfill Body Based on Adhesion Friction Theory

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Lei Liu ◽  
Shengyou Zhang ◽  
Weidong Liu ◽  
Wei Sun ◽  
Jinxin Li
Keyword(s):  
Shear Strength ◽  
Contact Area ◽  
Adhesive Contact ◽  
Calculation Model ◽  
Strength Calculation ◽  
Strength Analysis ◽  
Actual Contact ◽  
Actual Contact Area ◽  
Friction Theory

Proper determination of the shear strength of the backfill body used to fill the subsidence is the basis for subsidence restoration and the stability analysis of materials. This study developed a shear strength calculation model for the backfill body by introducing adhesive friction theory into the shear strength analysis. A direct shear test was performed in the laboratory to verify the proposed method. Test results suggested that the shear strength calculation method based on adhesive friction theory can calculate the variation in the actual contact area between grains in the tested samples undergoing shearing and estimate the peak shear strength. The actual contact area was divided into two components, namely, adhesive contact area Arm and contact area reduction caused by shear displacement, which exhibited a maximum at Armax. The shear strength values calculated by this method were smaller than laboratory values, and their differences increased with the rock proportion in the backfill body. The differences between the theoretical and experimental values of shear strength increased with the rock grain size. The results of theoretical calculation, combined with the results of laboratory experiments, can provide support for the proper determination of shear strength of the backfill body.

scholarly journals Contractor errors as the cause of emergency conditions of a timber roof rafter framing

2019 ◽  
Vol 284 ◽  
pp. 05004
Author(s):  
Piotr Dybeł ◽  
Justyna Jaskowska-Lemańska ◽  
Milena Kucharska
Keyword(s):  
Diagnostic Tests ◽  
Static Strength ◽  
Strength Analysis ◽  
Construction Design

The paper presents results of an analysis conducted in order to determine a cause of an emergency state of a timber roof rafter framing of a central nave ceiling in a church. The article showed an assessment of the current technical conditions, a description of the diagnostic tests performed and the results of the static strength analysis. Based on that information, the causes of this emergency state are described as the consequence of contractor’s errors during the execution and significant derogations from the construction design. Moreover, an implementation of a repair programme in order to restore the full value in use of the building is recommended.

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