Study on Aerodynamic Properties of Impact Plate

2012 ◽  
Vol 157-158 ◽  
pp. 970-975
Author(s):  
Xiao Wei An ◽  
Shu Ping Zheng ◽  
Yu Jie Ji
Keyword(s):  
Finite Element ◽  
Flow Field ◽  
Finite Element Model ◽  
Flow Velocity ◽  
Element Model ◽  
External Flow ◽  
Aerodynamic Properties ◽  
Flow Pressure ◽  
Impact Plate ◽  
Distribution Of Flow

An aero dynamical finite element model on rotary hammering test stand was established in this paper. The external flow field of the model was analyzed by CFD module of ANASYS-FLOTRAN. The distribution of flow velocity and that of flow pressure were obtained, which were analyzed to provide theoretical references for optimum design of impact plate.

Simulation and Evaluation of Wind-Induced Displacements of the Giant Airship in its Outbound Process

2012 ◽  
Vol 268-270 ◽  
pp. 1109-1113
Author(s):  
Gai Juan Wang ◽  
Yuan Ying Qiu ◽  
Xin Wen Zhao
Keyword(s):  
Fluid Dynamics ◽  
Finite Element ◽  
Flow Field ◽  
Finite Element Model ◽  
Three Dimensional ◽  
Element Model ◽  
Wind Pressure ◽  
Three Dimensional Flow ◽  
Dimensional Flow ◽  
Simulation And Evaluation

Aiming at an outbound process of the airship driven by the hydraulic rod and cables, a simulation of the wind-induced displacement for the airframe is conducted. First of all, a spatial three-dimensional flow field including the boathouse and airframe is calculated using fluid dynamics, and a wind pressure distributed on the airframe is equivalent to the forces and moments exerted on the airship head in three directions. Then, a finite element model of the airship structure is modeled and a simulation of the wind-induced displacements for the giant airship is conducted. Finally, a collision possibility between the airship and boathouse is evaluated, which lays a foundation for designing the boathouse structure that meets outbound conditions for the airship.

3-D Flow Field Simulation for Extruding Part of Mixing-Extruding Machine

2010 ◽  
Vol 44-47 ◽  
pp. 122-126
Author(s):  
Chuan Sheng Wang ◽  
Shan Hu Li ◽  
Ping Fu ◽  
Chun Lei Lü
Keyword(s):  
Finite Element ◽  
Flow Field ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Element Model ◽  
Double Cone ◽  
Flow Field Simulation ◽  
Single Screw ◽  
Field Simulation ◽  
Element Simulation

The physical, mathematical and finite element model of the extruding part of mixing-extruding machine was established to carry on the finite element simulation of the extrusion part flow field. Results showed that the double cone screw have better mixing and feeding properties than single screw.

Finite Element Simulation of Tire-Rim Interface

1989 ◽  
Vol 17 (4) ◽  
pp. 305-325 ◽  
Author(s):  
N. T. Tseng ◽  
R. G. Pelle ◽  
J. P. Chang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Finite Element Simulation ◽  
Contact Pressure ◽  
Element Model ◽  
Experimental Measurements ◽  
Inflation Pressure ◽  
Interference Fit ◽  
Element Simulation ◽  
Rubber Composite

Abstract A finite element model was developed to simulate the tire-rim interface. Elastomers were modeled by nonlinear incompressible elements, whereas plies were simulated by cord-rubber composite elements. Gap elements were used to simulate the opening between tire and rim at zero inflation pressure. This opening closed when the inflation pressure was increased gradually. The predicted distribution of contact pressure at the tire-rim interface agreed very well with the available experimental measurements. Several variations of the tire-rim interference fit were analyzed.

Torsional Analysis of a Steel Cord-Rubber Tire Belt Structure

1996 ◽  
Vol 24 (4) ◽  
pp. 339-348 ◽  
Author(s):  
R. M. V. Pidaparti
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Composite Structures ◽  
Three Dimensional ◽  
Element Model ◽  
Torsional Stiffness ◽  
Element Analysis ◽  
Rubber Belt ◽  
Steel Cord ◽  
Torsional Analysis

Abstract A three-dimensional (3D) beam finite element model was developed to investigate the torsional stiffness of a twisted steel-reinforced cord-rubber belt structure. The present 3D beam element takes into account the coupled extension, bending, and twisting deformations characteristic of the complex behavior of cord-rubber composite structures. The extension-twisting coupling due to the twisted nature of the cords was also considered in the finite element model. The results of torsional stiffness obtained from the finite element analysis for twisted cords and the two-ply steel cord-rubber belt structure are compared to the experimental data and other alternate solutions available in the literature. The effects of cord orientation, anisotropy, and rubber core surrounding the twisted cords on the torsional stiffness properties are presented and discussed.

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