Electrostatic-Structure Couple Field Analysis in Electrode Plate Design of Electrostatic Membrane Reflector with Composite Properties of Membrane Material

2012 ◽  
Vol 252 ◽  
pp. 241-244 ◽  
Author(s):  
Guang Feng Shi ◽  
Peng Zhang
Keyword(s):  
Parametric Design ◽  
Structure Design ◽  
Field Analysis ◽  
Membrane Material ◽  
Couple Field ◽  
Plate Design ◽  
Membrane Shape ◽  
Composite Properties ◽  
Plate Type ◽  
Electrode Plate

Electrode plate is a key component of membrane reflector which is light enough and deployable for launching into the space for large aperture telescope. But due to complexity of the control and structure design of electrostatic membrane reflector, it is difficult to begin the trial research. In this paper, firstly, the electrode plate type about the electrodes distribution is analyzed and designed. Then, ANSYS parametric design language is used to analyze the electrostatic-structure couple field in a numerical method and by which interval distances among the electrodes is determined. Finally, prototypes of the electrode plate and the electrostatic membrane reflector are manufactured. And the following work about the control and measurement of the stretched membrane shape shows the work in this paper is feasible and effective.

Temperature Field Analysis and Cooling Structure Design of Ironless Permanent Magnet Synchronous Linear Motor

2021 ◽  
Vol 14 ◽  
Author(s):  
Xiaoting Lu ◽  
Yang Li ◽  
Zailiang Chen
Keyword(s):  
Temperature Field ◽  
Permanent Magnet ◽  
Heat Loss ◽  
Linear Motor ◽  
Structure Design ◽  
Servo Control ◽  
Field Analysis ◽  
Temperature Fields ◽  
Water Cooling ◽  
Linear Motors

Objective: Ironless, permanent magnet, synchronous linear (IPMSL) motors are applied widely in precision servo control for the nonexistence of cogging forces and comparatively small fluctuations in thrust and speed. Method: The air and water cooling structures are designed by assuming the heat loss in the motor operations is the source for the distribution of the temperature field in the analysis under natural cooling. Conclusion: The temperature fields of the linear motor under the two cooling modes are compared and analyzed, which helps monitor the temperature of linear motors during development and operations.

scholarly journals Design of New Submerged Ozone Generator

2020 ◽  
Vol 194 ◽  
pp. 05011
Author(s):  
Hongxia Wang ◽  
Yun Long ◽  
Yuying Ji
Keyword(s):  
Technical Information ◽  
Reaction Chamber ◽  
Electrical Circuit ◽  
Structure Design ◽  
Ozone Generator ◽  
Plate Area ◽  
Reduce Energy Consumption ◽  
Electrical Circuit Model ◽  
Discharge Gap ◽  
Electrode Plate

In order to meet the demand of adjustable ozone concentration and reduce energy consumption, a new submerged ozone generator was designed. The nozzle, reaction chamber and electrode plate were studied and optimized. The mechanical structure design of the device was completed. The electrical circuit model was built by Matlab/Simulink, the design of power system is completed. The results show that the generation and reaction of ozone are completed in the treated water to effectively reduce the temperature of the reaction chamber. Moreover, by adjusting the parameters of discharge gap and cathode plate area, ozone can be adjusted as requirement to meet the purification requirements of different water bodies. It provides the technical information and data support for further experimental research and application of the new submerged ozone generator.

Research of Complex Plate-Type Cam Processing Based on MasterCAM

2011 ◽  
Vol 421 ◽  
pp. 625-629
Author(s):  
Ling Liu ◽  
Li Zhang
Keyword(s):  
Tool Path ◽  
High Efficiency ◽  
Parametric Design ◽  
Automatic Generation ◽  
Control Device ◽  
Cnc Machining ◽  
Production Costs ◽  
Scale Production ◽  
Plate Type ◽  
Lower Production

Because of cam transmited the specificity of force and motion,they are widely used in various machinery campaigns equipment and automatic control device in order to implement the movement of all kinds laws.This article introduced the research status and prospect of plate-type cam.MasterCAM served as a platform,to use their CAD capabilities and a mathematic analytic method to complete the parametric design of non-circular cam curve.Using the solid modeling completed the modeling function of cam.Using CAM functions of MasterCAM completed automatic generation of tool path,virtual simulation process and automatic generation of NC code.The design of the cam and CNC machining,high efficiency,sophisticated features that will help improve the manufacture of the cam quality,shorten product development cycles,lower production costs has a significant role for the formation of industrial scale production has great significance.

Structure design of weight-on-bit self-adjusting PDC bit based on stress field analysis and experiment evaluation

2021 ◽  
Vol 196 ◽  
pp. 107692
Author(s):  
Huaigang Hu ◽  
Zhichuan Guan ◽  
Bo Zhang ◽  
Yuqiang Xu ◽  
Yongwang Liu ◽  
...  
Keyword(s):  
Stress Field ◽  
Structure Design ◽  
Field Analysis ◽  
Pdc Bit ◽  
Weight On Bit ◽  
Stress Field Analysis

scholarly journals Numerical Optimization Simulation of Synchronous Four-Wing Rotor

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5353
Author(s):  
Kongshuo Wang ◽  
Haichao Liu ◽  
Tianhao Chang ◽  
Deshang Han ◽  
Yiren Pan ◽  
...  
Keyword(s):  
Parametric Design ◽  
Fitness Function ◽  
Pso Algorithm ◽  
Practical Experience ◽  
Structure Design ◽  
Before And After ◽  
Optimization Simulation ◽  
Distribution Index ◽  
New Ideas ◽  
Rotor Structure

The mixer is the most widely used batch mixing equipment in the rubber industry. The rotor is a core component and has a great impact on the mixing effect of the equipment. The current rotor structure design is done empirically, being tightly dependent on practical experience. This paper proposes a method for optimizing the rotor structure by using optimization algorithms combined with numerical simulation technology. Using MATLAB software, a parametric design program for synchronous rotors and a set of optimization programs for the particle swarm optimization (PSO) algorithm were written. The global distribution index was used as the fitness function to optimize the synchronous rotor configuration. A comparative analysis of the rotors before and after optimization shows that the optimization process is feasible, and the results are reliable. This provides new ideas for the design and development of mixer rotors.

Flow Field Analysis of PVC Polymerizer

2014 ◽  
Vol 884-885 ◽  
pp. 68-72
Author(s):  
Hui Di Hao ◽  
Tian Qi Cheng ◽  
Yong Fang Zhang ◽  
Na Zhu ◽  
Jian Yong Lei ◽  
...  
Keyword(s):  
Flow Field ◽  
Design Method ◽  
Suspension Polymerization ◽  
Calculation Model ◽  
Structure Design ◽  
Raw Material ◽  
Field Analysis ◽  
Stirred Tank ◽  
Chemical Production ◽  
Complex Flow

Stirred tank reactor is one of the three typical chemical machinery equipments and widely used in petroleum, chemical, pharmaceutical and other industrial fields .It is the basis of understanding the flow of fluid in stirred tank for optimizing design of reactor. This paper aims at the process of suspension polymerization of polyvinyl chloride (PVC) which is an important raw material of chemical production, and uses conventional design method to design the PVC stirred tank of 50m3 from the structure design. According to the fluid dynamics theory, standard K-E turbulent calculation model is established under the function of impeller, the corresponding boundary conditions are listed, and the grid is carried out successfully. And finally the FLOTRAN CFD software is used to simulate the complex flow field and flow pattern according to the multiple reference frame method.

Temperature Field Analysis for Freezing Sealing Structure of Sodium Gate Valve in China Experiment Fast Reactor (CEFR)

2013 ◽  
Author(s):  
Lina Hu ◽  
Huajin Yu ◽  
Mingyu Lv
Keyword(s):  
Temperature Field ◽  
Fast Reactor ◽  
Nuclear Power ◽  
Large Scale ◽  
Gate Valve ◽  
Structure Design ◽  
Field Analysis ◽  
Power Station ◽  
Experimental Relation ◽  
Simulation Results

In order to achieve the localization of the large-scale sodium gate valve in fast reactor nuclear power station, this paper use fluid software FLUEN, using two different methods, analysis temperature field of sodium gate valve freezing sealing structure of CEFR. The first method is to establish air model; the second method is to making use of experimental relation to calculate surface coefficient of heat transfer to simulate temperature field of freezing sealing structure of sodium gate valve in CEFR. Compared with measuring results on-site, simulation results of the first method have error within 10%. Therefore, it is feasible that simulating temperature field of freezing sealing structure with this method. That will promote structure design of freezing sealing of sodium gate valve for large fast rector power plant.

scholarly journals AERODYNAMIC CHARACTERISTIC OF THE ACTIVE COMPLIANT TRAILING EDGE CONCEPT

2016 ◽  
Vol 42 ◽  
pp. 1660173
Author(s):  
RUI NIE ◽  
JINHAO QIU ◽  
HONGLI JI ◽  
DAWEI LI
Keyword(s):  
Flow Separation ◽  
Aerodynamic Characteristic ◽  
High Strength ◽  
Aerodynamic Characteristics ◽  
Structure Design ◽  
Field Analysis ◽  
Design Parameters ◽  
Morphing Wing ◽  
Trailing Edge ◽  
Noise Characteristics

This paper introduces a novel Morphing Wing structure known as the Active Compliant Trailing Edge (ACTE). ACTE structures are designed using the concept of “distributed compliance” and wing skins of ACTE are fabricated from high-strength fiberglass composites laminates. Through the relative sliding between upper and lower wing skins which are connected by a linear guide pairs, the wing is able to achieve a large continuous deformation. In order to present an investigation about aerodynamics and noise characteristics of ACTE, a series of 2D airfoil analyses are established. The aerodynamic characteristics between ACTE and conventional deflection airfoil are analyzed and compared, and the impacts of different ACTE structure design parameters on aerodynamic characteristics are discussed. The airfoils mentioned above include two types (NACA0012 and NACA64A005.92). The computing results demonstrate that: compared with the conventional plane flap airfoil, the morphing wing using ACTE structures has the capability to improve aerodynamic characteristic and flow separation characteristic. In order to study the noise level of ACTE, flow field analysis using LES model is done to provide noise source data, and then the FW-H method is used to get the far field noise levels. The simulation results show that: compared with the conventional flap/aileron airfoil, the ACTE configuration is better to suppress the flow separation and lower the overall sound pressure level.

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