A Tank Experimental Research on a Horizontal Wave Flow Turbine Generating Device

2014 ◽  
Vol 953-954 ◽  
pp. 1429-1434
Author(s):  
Ka Tian ◽  
Shi Ming Wang ◽  
Chao Lv
Keyword(s):  
Simple Structure ◽  
Reference Method ◽  
Wave Flow ◽  
Ocean Energy ◽  
Steering Mechanism ◽  
Engineering Problems ◽  
Tank Experiment ◽  
Horizontal Wave ◽  
New Type ◽  
Rotational Direction

Used a new type horizontal wave flow turbine ocean energy device as a prototype for the tank experiment, theoretically analyzed the fluid dynamics and energy capacitation of its key component turbine. Through analyzing the data of the tank experimental of the key component turbine, we found the feasibility of this kind of power device. Besides, the experiment proved a particular characteristics of the turbine of maintaining the same rotational direction whatever the directions of the incoming flow of this kind of turbine. The feature of the turbine can eliminate the complicated steering mechanism, which helped the whole device with the advantage of simple structure. The tank experiment not only provided a practical foundation for optimizing the generating device, but also gave a reference method to solve the similar engineering problems.

Design for New Type Tobacco Sewing Machine Head

2014 ◽  
Vol 687-691 ◽  
pp. 300-303
Author(s):  
Li Zhang ◽  
Ting You Wang ◽  
Hong Bin Liu
Keyword(s):  
Simple Structure ◽  
Leaf Damage ◽  
Analytic Method ◽  
Sewing Machine ◽  
Tobacco Leaf ◽  
Existing Problems ◽  
Damage Rate ◽  
New Type ◽  
Drawing Method ◽  
New Machine

In order to reducing the worker's labor intensity in tobacco sewing, a new machine adoption with single thread sewing technology was developed. Through analyzing the existing problems in sewing machine and the tobacco damage situation, using drawing method, analytic method and other methods, the shape of the sewing component, hook line components and other mating parts were designed. The results show that the machine has the advantages of simple structure, controllable sewing speed, adjustable leaf thickness and quantity. And the tobacco leaf damage rate is low. The comprehensive efficiency in tobacco leaf knitting with this machine is four times higher than that with hand knitting. Its application prospect is considerable.

The Finite Element Analysis of a Heavy Semi-Trailer Frame Based on ANSYS

2014 ◽  
Vol 644-650 ◽  
pp. 455-458
Author(s):  
Yao Ye ◽  
Yong Hai Wu
Keyword(s):  
Finite Element ◽  
Geometric Model ◽  
Reference Method ◽  
Element Model ◽  
Element Analysis ◽  
Emergency Braking ◽  
The Finite Element Analysis ◽  
New Type ◽  
Stress And Deformation ◽  
3D Geometric Model

Frame has important effects on the performance of the whole of heavy semi-trailer. A heavy semi-trailer frame is analyzed and researched on in the finite-element way in this article. The frame of 3D geometric model is established by using Pro/E. And it was imported into the Hypermesh to establish frame finite element model. Frame are calculated by using ANSYS solver in bending condition, emergency braking conditions and rapid turn conditions of stress and deformation conditions. The computational tools and methods we used provide the new type of frame and development with a reference method to refer to in this paper.

Research on Device of Hydraulic Pushing

2012 ◽  
Vol 580 ◽  
pp. 260-262
Author(s):  
Kai Liu ◽  
Hai Ying Zhou ◽  
Ming Jiang
Keyword(s):  
Simple Structure ◽  
High Efficiency ◽  
Steel Rail ◽  
New Device ◽  
Action Point ◽  
Hydraulic Equipment ◽  
Optimizing Design ◽  
New Type ◽  
Pulling Force ◽  
Clamping Device

The new device of hydraulic pushing device achieves enclasping of clamping device and steel rail locking effect by the wedge clamping on the both side of the steel rail, so as to provide thrust and pulling force action point for the cylinder of hydraulic equipment. Compare with other devices, the new type of device has more advantages like : simple structure, reliable clamp, easy erection and high efficiency. To further optimize the mechanical clamping device, the pressure and the friction coefficient of the wedge. the shell and the rail were analyzed emphatically. Combining experimental data and the reasonable angle of wedge and optimizing design direction was applied.

Design of Multi-Mode PID Controller and Application in Time-Delay Process

2014 ◽  
Vol 511-512 ◽  
pp. 637-642
Author(s):  
Yu Mei Chen ◽  
Fei Tan ◽  
Tao Fan
Keyword(s):  
Time Delay ◽  
Transient Response ◽  
Intelligent Control ◽  
Pid Controller ◽  
Control Algorithm ◽  
Simple Structure ◽  
Excitation Control ◽  
New Type ◽  
Simulation Results ◽  
Multi Mode

Through brief analysis of characteristics of conventional control, a new type of multi-mode intelligent control algorithm based on error information is put forward. The algorithm consists of proportional acceleration control for rapidity of transient response, differential deceleration control for stationarity of transient response and steady state excitation control for accuracy of steady response. The control algorithm is applied to time-delay process, compared with other algorithms. Simulation results show its good performance with MATLAB language. The algorithm has simple structure, good generality and easy adjustment.

Discussion on the Design of a New Type Down-Hole BOP

2011 ◽  
Vol 84-85 ◽  
pp. 294-298
Author(s):  
Qi Ming Yang ◽  
Ying Fu ◽  
Cun Yong Guo
Keyword(s):  
Finite Element Analysis ◽  
Simple Structure ◽  
Development Prospect ◽  
Hole State ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Blowout Preventer ◽  
Drilling Operations ◽  
New Type ◽  
Working Principle

There was a new down-hole BOP that was designed to control blowout effectively in exploiting petroleum gas. The BOP was a new blowout preventer with a good development prospect which can not only automatically shut underground, but also control and automatically discharge shut up-hole state on the ground. Through introducing structure and working principle of the BOP, as well as the finite element analysis of some key components, there has been showed that the down-hole blowout preventer met the strength requirements and had relatively high security. The down-hole blowout preventer with a simple structure can not only work reliably but also complete the act of preventing blowout and unlocking many times to prevent blowout effectively and to improve drilling operations safety and efficiency. It will have a bright development prospect.

The Vertical Bearing Capacity Analysis of Screw Pile in Clay

2013 ◽  
Vol 788 ◽  
pp. 575-577
Author(s):  
Yu Cui ◽  
Jun Qiang Wu
Keyword(s):  
Bearing Capacity ◽  
Good Choice ◽  
Key Factors ◽  
Ocean Energy ◽  
Offshore Engineering ◽  
Screw Pile ◽  
New Type ◽  
Vertical Bearing ◽  
Energy Gains ◽  
Vertical Bearing Capacity

Recently,ocean energy, especially wind energy, gains attention from all over the world.In offshore engineering , the design and construction of foundation are key factors. As a new type of piles, screw pile has advantages of compressive capacity and uplift capacity.Therefore, screw pile is a good choice for offshore engineering foundation. In this paper , ABAQUS software analysed vertical bearing capacity of screw pile and steel pile with same diameter in clay .And the analysis result shows : the compressive resistance and uplift resistance of screw pile are 1104KN and 974.3KN, the same capacity of steel pile are only 332.3KN and 189.7KN.

Study on Balancing Technology of Hybrid CNC Grinding Machine

2006 ◽  
Vol 304-305 ◽  
pp. 445-449 ◽  
Author(s):  
Xiang Zhi Meng ◽  
Chun Shi Liu ◽  
X.Y. Guan ◽  
Guang Qi Cai
Keyword(s):  
Simple Structure ◽  
Optimal Parameter ◽  
Target Function ◽  
Distribution Law ◽  
Good Balance ◽  
Cnc Grinding ◽  
Optimization Calculation ◽  
New Type ◽  
Grinding Machine ◽  
Cnc Grinding Machine

Good balancing is very important to improve the moving performance of grinding machine. General balancing technology of grinders was analyzed. The structure features of a new type of hybrid CNC grinding machine were introduced. The necessity of obtaining good balance of the hybrid grinder was demonstrated. Based on simulation and calculation of the distribution law of potential energy over the grinder, a solution for obtaining partial balance of the machine was worked out. An optimal parameter value of the designed balance unit was reached through optimization calculation with optimal balancing effect as target function. The max actuating force of balanced machine accounts for only 13.7% of the force of un-balanced. The balancing unit is of features of simple structure and good balancing effect.

Configuration Design and Finite Element Analysis for Key Components of the New-Type Sprayer

2014 ◽  
Vol 701-702 ◽  
pp. 853-857
Author(s):  
Yuan Zhang ◽  
Kun Li ◽  
Qiang Wei ◽  
Bo Yang Meng
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Optimization ◽  
Power Transmission ◽  
Design Method ◽  
Rear Wheel ◽  
Element Analysis ◽  
Steering Mechanism ◽  
New Type ◽  
High Clearance

According to the three-wheeled high clearance sprayer on the current market, the traditional empirical design method can hardly be used for effective stress distribution calculation and structural optimization, so it leads to the unreasonable structural design. Based on the overall structure of the sprayer design, a new-type high clearance sprayer designed, It is mainly composed of the engine-powered diaphragm pump power transmission parts, the power steering of scalable universal joint, the rear wheel steering mechanism and other components. Meanwhile, the finite element analysis and structural optimization on the sprayer frame have been finished. Therefore, the results showed that the frame realized the lightweight on the premise of the demand of performance and stiffness, each mechanism’s matching performance of sprayer meets the design requirements, and this approach provides a beneficial investigation into the future sprayer design.

Numerical and Experiment Study on New Types of Magnus Blade

2014 ◽  
Vol 472 ◽  
pp. 271-275
Author(s):  
Ying Xue Yao ◽  
Xue Wen Wang ◽  
Jin Ming Wu
Keyword(s):  
Wind Turbine ◽  
Simple Structure ◽  
Low Cost ◽  
Fossil Energy ◽  
Low Wind Speed ◽  
2D Simulation ◽  
New Energy ◽  
New Type ◽  
Drag Ratio ◽  
Lift To Drag Ratio

Fossil energy is becoming less and less, as one of new energy, many countries pay more attention on wind energy. Magnus wind turbine has an advantage of simple structure, low cost. It can work well at a very low wind speed and the control system is very simple. As the cylinder blade of traditional Magnus wind turbine has a relatively low lift to drag ratio, This paper provide two new type blade of Magnus wind turbine and it can greatly improve lift to drag ratio of Magnus wind turbine. This paper will use CFD software Fluent, through 2D simulation, compare the lift to drag ratio of cylinder blades. At last, do experiments to compare the performance of these blades.

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