Design and Optimization of Expert Database System for Cast and Roll Production of Copper Tubes

2011 ◽  
Vol 418-420 ◽  
pp. 1939-1943
Author(s):  
Yan Min Meng ◽  
Jin Song Liu

To solve the problems of change design and massive work and low efficiency during Cast & Roll processes design, an expert database system for Cast & Roll process design of copper tubes has been developed. Knowledge reasoning, Artificial Neural Networks (ANN), Genetic Algorithm (GA), Numerical Simulation, Uniform Design, CAD Parameterization Design, database and Intranet have been integrated into the system for process design and parameter optimization, which can exert the advantage of each technology. The design method has been proved to be successful.

2009 ◽  
Vol 50 (8) ◽  
pp. 1998-2004 ◽  
Author(s):  
Hideki Kakimoto ◽  
Yoichi Takashi ◽  
Hideki Takamori ◽  
Tatsuya Tanaka ◽  
Yutaka Imaida

BMC Chemistry ◽  
2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Yongping Zhang ◽  
Zuhua Wang ◽  
Jian Xu ◽  
Fangfang Yang ◽  
Chuanyang Dai ◽  
...  

2014 ◽  
Vol 1008-1009 ◽  
pp. 850-860 ◽  
Author(s):  
Zhou Wei Zhang ◽  
Jia Xing Xue ◽  
Ya Hong Wang

A calculation method for counter-current type coil-wound heat exchanger is presented for heat exchange process. The numerical simulation method is applied to determine the basic physical parameters of wound bundles. By controlling the inlet fluid velocity varying in coil-wound heat exchanger to program and calculate the iterative process. The calculation data is analyzed by comparison of numerical result and the unit three dimensional pipe bundle model was built. Studies show that the introduction of numerical simulation can simplify the pipe winding process and accelerate the calculation and design of overall configuration in coil-wound heat exchanger. This method can be applied to the physical modeling and heat transfer calculation of pipe bundles in coil wound heat exchanger, program to calculate the complex heat transfer changing with velocity and other parameters, and optimize the overall design and calculation of spiral bundles.


2013 ◽  
Vol 850-851 ◽  
pp. 847-850 ◽  
Author(s):  
Lin Chao Dai

In order to study the coal and gas outburst similar simulation experiment, coal similar material was made up based on the similarity theory. Based on the previous similar material study, the cement, sand, water, activated carbon and coal powder was selected as the raw material of similar material. Meanwhile similar material matching program with 5 factors and 6 levels was designed by using Uniform Design Method. And the physical and mechanical properties of the similar material compressive strength was measured under different proportions circumstances. The relationship between similar material and the raw materials was analyzed. The results show that choosing different materials can compound different similar materials with different requirements. And the water-cement ratio plays a decisive influence on the compressive strength of similar material. The compressive strength of similar material decreases linearly when the water-cement ratio increases.


2015 ◽  
Vol 9 (1) ◽  
pp. 58-64 ◽  
Author(s):  
Kuiyang Wang ◽  
Jinhua Tang ◽  
Guoqing Li

In order to optimize the design method and improve the performance of hydraulic retarder, the numerical simulation of multi-field coupling of heat, fluid and solid is carried out to hydraulic retarder, based on the numerical computation and algorithm of heat-fluid coupling and fluid-solid coupling. The computation models of heat-fluid coupling and fluid-solid coupling of hydraulic retarder are created. The three dimensional model of hydraulic retarder is established based on CATIA software, and the whole flow passage model of hydraulic retarder is extracted on the basis of the three dimensional model established. Based on the CFD calculation and the finite element numerical simulation, the temperature field, stress field, deformation and stress state are analysised to hydraulic retarder in the state of whole filling when the rotate speed is 1600 r/min. In consideration of rotating centrifugal force, thermal stress and air exciting vibration force of blade surface, by using the sequential coupling method, the flow field characteristics of hydraulic retarder and dynamic characteristics of blade structure are analysised and researched based on multi-field coupling of heat, fluid and solid. These provide the theoretical foundation and references for parametric design of hydraulic retarder.


2009 ◽  
Vol 50 (579) ◽  
pp. 343-348 ◽  
Author(s):  
Hideki KAKIMOTO ◽  
Takefumi ARIKAWA ◽  
Yoichi TAKAHASHI ◽  
Tatsuya TANAKA ◽  
Yutaka IMAIDA

2013 ◽  
Vol 33 (3) ◽  
pp. 993-999 ◽  
Author(s):  
Zhijun Zhou ◽  
Zhuo You ◽  
Zhihua Wang ◽  
Xin Hu ◽  
Junhu Zhou ◽  
...  

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