Static Modal Stiffness Sensitivity of the Frame under Full Vehicle Environment

2011 ◽  
Vol 308-310 ◽  
pp. 2374-2378
Author(s):  
Shu Hua Pan ◽  
Yu Dong Chen
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Individual Component ◽  
Element Model ◽  
Three Dimension ◽  
Frame Design ◽  
Full Vehicle ◽  
The Individual

Most of the component optimizations of trucks are limited to the individual component because of the complex coupling relations between components. Focusing on such difficult optimal problem, the conception of static modal stiffness was introduced and static modal stiffness sensitivity was defined. The method for computing static modal stiffness sensitivities was also developed. The proposed method was applied to the static modal stiffness sensitivities analysis of the frame of the truck under full vehicle environment. In the computations, a three dimension finite element model for full vehicle was established and the frame was divided into 13 superelements. The static modal stiffness sensitivities obtained can be used to improve the frame design.

Study on Load Stress of Lean Concrete Base in Asphalt Pavement

2012 ◽  
Vol 178-181 ◽  
pp. 1495-1498
Author(s):  
Li Jun Suo
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Asphalt Pavement ◽  
Element Model ◽  
Pavement Design ◽  
The Other ◽  
Three Dimension ◽  
Traffic Loading ◽  
Concrete Base

Load stress, which is caused by traffic loading, is important parameter used in the analysis of the new pavement design. In order to study the load stress of lean concrete base in the asphalt pavement, first of all, three–dimension finite element model of the asphalt pavement is established. The main objectives of the paper are investigated. One is calculation for load stress of lean concrete base, and the other is analysis for relationship between load stress of lean concrete base and parameters, such as thickness, modulus. The results show that load stress of lean concrete base decreases, decreases and increases with increase of base’s thickness, surface’s thickness and ratio of base’s modulus to foundation’s modulus respectively. So far as the traffic axle loading is concerned, it has a significant impact on load stress of lean concrete base, and it can be seen from results that when load is taken from 100kN to 220kN, load stress increases quickly with the increase of the traffic axle loading.

Mechanical Analysis of Porous Concrete Base in Asphalt Pavement

2012 ◽  
Vol 443-444 ◽  
pp. 751-756
Author(s):  
Li Jun Suo ◽  
Xia Guang Hu
Keyword(s):  
Finite Element ◽  
Thermal Stress ◽  
Finite Element Model ◽  
Design Method ◽  
Asphalt Pavement ◽  
Element Model ◽  
Three Dimension ◽  
Porous Concrete ◽  
Finite Element Software ◽  
Concrete Base

In China, it is fact that porous concrete base has been used in the construction of asphalt pavement in recent years because porous concrete base has good performance. However, Reasonable design method has not been put forward so far. Therefore, it is necessary to analyze load stress and thermal stress of asphalt pavement which includes porous concrete base in order to put forward theoretical basis for pavement design method. In the paper, three–dimension finite element model of asphalt pavement, which includes porous concrete base and asphalt surface, is created for the purpose of studying load stress and thermal stress of porous concrete base in asphalt pavement. Based on numerical method of three–dimension finite element model, finite element software, such as ANSYS, is employed to study load stress and thermal stress of porous concrete base in asphalt pavement. After that, the effect of different factors on stress is studied, and the factors include thickness of surface, thickness of base and ratio of base’s modulus to foundation’s modulus. Finally, calculation results for stress are compared with each other, and it shows that load stress of porous concrete base decreases with increase of base’s thickness, while thermal stress of porous concrete base increases with increase of base’s thickness. Load stress and thermal stress of porous concrete base decrease with increase of surface’s thickness. Load stress and thermal stress of porous concrete base increase with increase of ratio of base’s modulus to foundation’s modulus.

Study on Shearing Stress of Asphalt Surface on Lean Concrete Base

2012 ◽  
Vol 178-181 ◽  
pp. 1402-1405
Author(s):  
Li Jun Suo
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Asphalt Pavement ◽  
Element Model ◽  
The Other ◽  
Three Dimension ◽  
Shearing Stress ◽  
Concrete Base ◽  
Contraction Joint ◽  
Decrease Decrease

In order to study the shearing stress of asphalt surface on lean concrete base, first of all, three–dimension finite element model of the asphalt pavement is established. The main objectives of the paper are investigated. One is calculation for shearing stress of asphalt surface in transverse contraction joint of lean concrete base, and the other is analysis for relationship between load stress of asphalt surface and parameters, such as thickness, modulus. The results show that maximum shearing stress, which is caused by load, is evident in asphalt surface which is located in transverse contraction joint of lean concrete base of asphalt pavement. Maximum shearing stress decrease, decrease, decrease and increase respectively with increase of the surface’s modulus, the surface’s thickness, base’s thickness and ratio of base’s modulus to foundation’s modulus.

Analysis of the shape of the tibial tray in total knee arthroplasty using a three dimension finite element model

2002 ◽  
Vol 17 (7) ◽  
pp. 521-525 ◽  
Author(s):  
Shinya Miyoshi ◽  
Toshiaki Takahashi ◽  
Masahiro Ohtani ◽  
Hiroshi Yamamoto ◽  
Kanji Kameyama
Keyword(s):  
Finite Element ◽  
Total Knee Arthroplasty ◽  
Finite Element Model ◽  
Knee Arthroplasty ◽  
Element Model ◽  
Three Dimension ◽  
Tibial Tray ◽  
Total Knee

The Effects of Operational, Testing and Material Characterisations On the Change in Yield Strength From Plate to Pipe

2021 ◽  
Author(s):  
Jingsi Jiao ◽  
Cheng Lu ◽  
Valerie Linton ◽  
Frank Barbaro
Keyword(s):  
Mechanical Properties ◽  
Finite Element ◽  
Yield Strength ◽  
Finite Element Model ◽  
Mechanical Performance ◽  
Element Model ◽  
Critical Knowledge ◽  
Operational Testing ◽  
Wide Range ◽  
The Individual

Abstract The mechanical performance of the pipe sample has a direct influence on their application in real environments and a significant economic impact on manufacturers, especially when the pipe products do not meet required specifications. There is often a change in the yield strength from plate to pipe due to strain hardening and the Bauschinger effect. The current work sets out to provide a critical knowledge base for this change, with emphasizing the important influence of the plate mechanical properties on the pipe. So that the quality of pipe can be further ensured. In the work, firstly, the historical data of the pipe yield strength were collected and plotted together from a wide range of published sources to provide a broad quantitative insight, which provides a quantitative review on the parameters that govern the final pipe yield strength. Secondly, a Finite Element model of the pipe forming and mechanical evaluation was developed and then validated with available industrial testing results, in where the effects of operational and testing parameters on the pipe yield strength were analysed and discussed in detail. Finally, using the validated Finite Element model, a parametric study was conducted to dissect the individual role that each of the material parameters plays on changing the yield strength from plate to pipe. We found that the yield strength of the pipe can differ significantly. This work sheds lights on the desired plate mechanical properties to optimize the final pipe yield strength.

Full Vehicle Finite Element Model 4-Post Durability Analysis

2005 ◽  
Author(s):  
Yuan Zhang ◽  
Ted Stawiarski ◽  
Mani Subramanian ◽  
Don Yung ◽  
Akbar D. Farahani ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Full Vehicle ◽  
Durability Analysis

Finite Element Model Analysis on Five-Cylinder Marine Diesel’s Crankshaft Based on UG and ANSYS

2012 ◽  
Vol 538-541 ◽  
pp. 677-681
Author(s):  
Jun Luo ◽  
Jie Sun ◽  
Guang Jie Yuan
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Natural Frequency ◽  
Element Model ◽  
Model Analysis ◽  
Mode Shapes ◽  
Three Dimension ◽  
The Core ◽  
Core Components

Ship host is the heart of one ship, while the crankshaft is the core components of ship host. Created a three-dimension crankshaft’s modal through UG, then use FEM software ANSYS to simplified the characteristics details and constraints. Take the modal analysis of the crankshaft in order to gain the natural frequency and mode shapes).

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