Fast calculation method for computer-generated cylindrical holograms based on the three-dimensional Fourier spectrum

2013 ◽  
Vol 38 (23) ◽  
pp. 5172 ◽  
Author(s):  
Yusuke Sando ◽  
Daisuke Barada ◽  
Boaz Jessie Jackin ◽  
Toyohiko Yatagai
Keyword(s):  
Calculation Method ◽  
Fourier Spectrum ◽  
Three Dimensional ◽  
Fast Calculation

scholarly journals Proton impact ionization and a fast calculation method

2013 ◽  
Vol 118 (8) ◽  
pp. 5369-5378 ◽  
Author(s):  
Xiaohua Fang ◽  
Dirk Lummerzheim ◽  
Charles H. Jackman
Keyword(s):  
Calculation Method ◽  
Impact Ionization ◽  
Fast Calculation ◽  
Proton Impact

scholarly journals A Fast Calculation Method for Improving the Steering Arm of Mining Trucks with Macpherson Suspension

2021 ◽  
Vol 11 (18) ◽  
pp. 8614
Author(s):  
Jianwei Wu ◽  
Qidi Fu ◽  
Jianrun Zhang ◽  
Beibei Sun
Keyword(s):  
Calculation Method ◽  
Rolling Resistance ◽  
Economic Cost ◽  
Coupling Model ◽  
Resistance Coefficient ◽  
Extreme Conditions ◽  
Fast Calculation ◽  
Vehicle Velocity ◽  
Steering Mechanism ◽  
Improvement Scheme

The steering arm has recently been frequently broken in a kind of mining truck with Macpherson suspension. To accelerate replacing the broken parts and minimize the economic cost, a fast calculation method for improving the steering arm is proposed in this paper. In this method, the forces on the steering arm are calculated by quasi-static analysis under a low vehicle velocity. Dynamic characteristics of the tire and road are partly included by considering the ranges of the rolling resistance coefficient and friction coefficient from the empirical values, which determines the torque on the steering arm under extreme conditions. The rigid–flexible coupling model for the left steering mechanism in ANSYS Workbench is established and solved to obtain the distribution stress on the steering arm under extreme conditions. Then, the reliability of the simulation results based on this fast calculation method is verified by the experiment. After determining an improvement scheme considering the economic and time cost, the satisfactory strength is obtained. The results illustrate that the strength of the improved steering arm has nearly doubled. Finally, the effectiveness of the improved steering arm is demonstrated by the users’ feedback after it is manufactured, installed, and used.

Calculation method of belt material parameters for finite element tire model

2021 ◽  
pp. 095440702110422
Author(s):  
Lu Zhang ◽  
Shaohua Wang ◽  
Bing Li
Keyword(s):  
Finite Element ◽  
Calculation Method ◽  
Complex Structure ◽  
Three Dimensional ◽  
Anisotropic Elasticity ◽  
Dynamic Responses ◽  
Reinforced Composites ◽  
Tire Model ◽  
Material Parameters ◽  
Vehicle Dynamic Simulation

The radial tire belt is composed of multi-layered fiber-reinforced cords with a very complex structure. Restricted by the computing speed, the simplified finite element (FE) tire model with equivalent belt is usually applied in the vehicle dynamic simulation. However, it is always difficult to obtain the material parameters of the equivalent belt. In this paper, a calculation method of equivalent belt material parameters for the simplified FE tire model is proposed based on the three-dimensional (3-D) anisotropic elasticity of the cord reinforced composites. The simulation results of the static radial stiffness, modal characteristics, and dynamic responses for the simplified FE tire model with parameters obtained by the calculation method were compared with experiment results. The results show that the deviation between the experiment and simulation is acceptable, and the validity of the calculation method is verified.

Sign in / Sign up

Export Citation Format

Share Document