The Experimental Design and Research of Coaly Similar Materials Based on Uniform Design Method

2013 ◽  
Vol 850-851 ◽  
pp. 233-236
Author(s):  
Bo Wang
Keyword(s):  
Experimental Design ◽  
Design Method ◽  
Uniform Design ◽  
Raw Material ◽  
Similar Material ◽  
Research Results ◽  
Advantages And Disadvantages ◽  
Uniform Dispersion ◽  
Similar Materials ◽  
Uniform Design Method

In order to better implement ratio production of coaly similar material, make use of research results of existing similar materials, consult domestic and foreign documents, and combined with the needs of their own experiment, determine the requirements for coaly similar material, propose a selective condition of similar raw materials, and according to the condition determining a selective content and range of similar raw material. Compared with the advantages and disadvantages of uniform design method and the orthogonal experiment design, put forward the corresponding experimental design, and its uniform dispersion was studied, the research show that the use of uniform design method that used in the ratio and manufacture of coaly similar material, which is very reasonable, its research results provide the basis and foundation for the future experimental research of similar material.

Research on Simulation Test of Coal Similar Material

2013 ◽  
Vol 850-851 ◽  
pp. 847-850 ◽  
Author(s):  
Lin Chao Dai
Keyword(s):  
Compressive Strength ◽  
Raw Materials ◽  
Similarity Theory ◽  
Design Method ◽  
Uniform Design ◽  
Physical And Mechanical Properties ◽  
Raw Material ◽  
Similar Material ◽  
Cement Ratio ◽  
Water Cement Ratio

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.

scholarly journals Optimization of the extraction and purification of Corydalis yanhusuo W.T. Wang based on the Q-marker uniform design method

BMC Chemistry ◽  
2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Yongping Zhang ◽  
Zuhua Wang ◽  
Jian Xu ◽  
Fangfang Yang ◽  
Chuanyang Dai ◽  
...  
Keyword(s):  
Design Method ◽  
Uniform Design ◽  
Extraction And Purification ◽  
Uniform Design Method

scholarly journals Effect of Mixed Commercial Cold Flow Improvers on Flow Properties of Biodiesel from Waste Cooking Oil

Processes ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1094
Author(s):  
Siyu Nie ◽  
Leichang Cao
Keyword(s):  
Design Method ◽  
Uniform Design ◽  
Waste Cooking Oil ◽  
Cold Filter Plugging Point ◽  
Depressing Effect ◽  
Obvious Effect ◽  
Cold Flow ◽  
Cooking Oil ◽  
Uniform Design Method ◽  
Solidifying Point

The uniform design method was used to screen the solidifying point depressing effects of 18 traditional diesel cold flow improvers on biodiesel derived from waste cooking oil. The cold flow improvers with good effects were selected for orthogonal optimization. Finally, the mixed cold flow improver (CFI) with the best depressing effect was selected to explore its depressing mechanism for biodiesel. The results show that the typical CFIs such as A132, A146, 10-320, 10-330, A-4, CS-1, AH-BSFH, Haote, T1804D, and HL21 all have a certain solidifying point depressing effect on biodiesel, while other cold flow improvers had no obvious effect. Amongst them, 10-330 (PMA polymer) and AH-BSFH (EVA polymer) had better solidifying point depressing effects over others, both of which reduced the solidifying point (SP) of biodiesel by 4 °C and the cold filter plugging point (CFPP) by 2 °C and 3 °C, respectively. From the orthogonal mixing experiment, it can be seen that the combination of 10-330 and AH-BSFH at a mass ratio of 1:8 had the best depressing effect, reducing the solidifying point and cold filter plugging point of biodiesel by 5 °C and 3 °C, respectively. Orthogonal analysis showed that when used in combination, AH-BSFH had a greater impact on the solidifying point, while the ratio of the combination had a greater impact on the cold filter plugging point.

Extracted from Actinidia Arguta of Wild Fructification Polyphenols Optimization Conditions

2014 ◽  
Vol 1082 ◽  
pp. 106-111
Author(s):  
Yu Hong Yang ◽  
Zong Li Kang ◽  
Rui Xin Guo ◽  
Hong Ling Wang ◽  
Zhuo Wang ◽  
...  
Keyword(s):  
Experimental Design ◽  
Design Method ◽  
Acetone Solution ◽  
Raw Material ◽  
Orthogonal Experimental Design ◽  
Single Factor ◽  
Liquid Ratio ◽  
Actinidia Arguta ◽  
Experimental Design Method ◽  
Solid Liquid

We had studied using single factor and orthogonal experimental design method for extracted from actinidia arguta of wild fructification polyphenols conditions optimization, as actinidia arguta of wild raw material. The results showed that: extracted from actinidia arguta of wild fructification polyphenols optimization the best conditions is acetone solution of 30 percent, according to the solid-liquid ratio of 1:9, at 35°C, the extraction 30 min best, the amount of polyphenols extracted 763.8 mg / L.

Research on the Cutting Fluid Effect on Cutting Force and Surface Roughness in Rotor Milling

2012 ◽  
Vol 723 ◽  
pp. 50-55
Author(s):  
Jian Lu Wang ◽  
Liang Liang Wu ◽  
Jun Zhang ◽  
Wan Hua Zhao ◽  
Yi Fei Jiang ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Cutting Force ◽  
Design Method ◽  
Uniform Design ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Cutting Fluid ◽  
Cutting Depth ◽  
Multivariable Regression ◽  
Uniform Design Method

A series of milling experiments with and without cutting fluid, arranged by uniform design method, were carried out on rotor material. The influence of cutting fluid on cutting force and surface roughness was explored and compared for the two kinds of conditions. The associated model was established between cutting force & surface roughness and cutting parameters according to the linear multivariable regression method. The results show that the cutting force deceases with the increase of the cutting speed or with the decrease of the feed per tooth and the cutting depth. Cutting fluid has little effect on cutting force, and for surface roughness, the influence of cutting fluid is uncertain.

Uniform Design on the Forward Annular Shaped Charge of Torpedo Tandem Warhead

2014 ◽  
Vol 556-562 ◽  
pp. 1263-1266
Author(s):  
Lei FU ◽  
Wei Li Wang ◽  
Ying Zi Jiang ◽  
Xue Feng Huang ◽  
Jin Lv
Keyword(s):  
Penetration Depth ◽  
Design Method ◽  
Uniform Design ◽  
Shaped Charge ◽  
Opening Angle ◽  
Structure Parameters ◽  
Uniform Design Method ◽  
3D Software

By using LS-DYNA 3D software, the structure of forward annular shaped charge of torpedo tandem warhead is optimized in the simulation with uniform design method. During the simulation of annular shaped charge penetration into the plate underwater, the liner opening angle,liner thickness,charge height and charge angle are taken as factors, while the penetration depth is taken as index. The optimized structure parameters resulted form simulation can be used in the design of torpedo.

Study on Performance of Hot Pressed High Phosphorus-Boron Iron-Based Bit Matrix and Diamond Bit

2009 ◽  
Vol 416 ◽  
pp. 386-390
Author(s):  
Zhan Yang ◽  
Bing Suo Pan ◽  
Kai Hua Yang
Keyword(s):  
Regression Models ◽  
Design Method ◽  
Uniform Design ◽  
Rock Formations ◽  
Matrix Formula ◽  
Iron Based ◽  
Uniform Design Method ◽  
Bit Life ◽  
Diamond Bit ◽  
Matrix Hardness

Formula uniform design method was adopted to study the performance of iron-based matrix with high content of phosphorus and boron. Two forms of regression models on matrix hardness and wear resistance and the optimum matrix formulae were obtained respectively by regression analysis and constrained nonlinear programming using MATLAB. Regression analyses indicate that matrix hardness was mainly affected by the factor of Ni, Co and Fe; matrix hardness and brittleness increased with the increment of P-Fe alloy, but decreased with the increase of 663-Cu. These results can be used as a rough guide for design of highly adaptive diamond bits for different rock formations. After the indoor experiments, diamond bit based on 3# matrix formula was made to perform field drilling tests. The results were that the penetration rate was 1.91m/h and the average diamond bit life was 67.37m.

Optimization on Uniform Design for Preparing Monodisperse P(St/BA/AA) Microsphere by Dispersion Polymerization

2011 ◽  
Vol 225-226 ◽  
pp. 1167-1170
Author(s):  
Jin Xian Lin
Keyword(s):  
Dispersion Polymerization ◽  
Design Method ◽  
Uniform Design ◽  
Regression Equation ◽  
Polymerization Reaction ◽  
Regression Equations ◽  
Stabilizer Concentration ◽  
Mechanism Research ◽  
Predicted Values ◽  
Uniform Design Method

The uniform design method is used to arrange experiment of dispersion polymerization of styrene, butyl acrylate and acryl acid. The stepwise regression technique is adopted to analyze the results. The mathematical models are built by regression equations between the microsphere conversion rate, the size and its distribution. There are many influencing factors, such as, 3 monomer concentrations, stabilizer concentration, initiator concentration, ratio of alcohol and water, temperature established, and their reliabilities evaluated. Although the predicted values from regression equation different from the observed values (relative divergences less than 10%)，the regression equation can be used for designing particles and mechanism research. All above researches can be used for optimizing dispersion polymerization reaction conditions.

Wear Reliability Analysis Method Based on Random Process

2012 ◽  
Vol 155-156 ◽  
pp. 348-351
Author(s):  
Yu Tao Yan ◽  
Zhi Li Sun ◽  
Guang Wei Hu ◽  
Li Fang Liu
Keyword(s):  
Random Process ◽  
Reliability Analysis ◽  
Test Data ◽  
Design Method ◽  
Uniform Design ◽  
Surface Hardness ◽  
Analysis Method ◽  
Analysis Model ◽  
Function Fitting ◽  
Uniform Design Method

The random reliability analysis model for wear was established based on random process theory and wear research. The wear experiment scheme on load, sliding speed, surface hardness and bearing capacity of lubrication was instituted by the uniform design method, and carried out on a vertical universal friction/wear tester. The static wear predication model was established by the partial least squares based on test data. It is found that the wear extent obey to normal distribution by checkout of the probability paper and mathematic expectation function fitting and residuals distribution, the variance function fitting and residuals distribution based on the test data of random process. The reliability of definite working life was gained by calculating with established reliability model, and compared with test data, the analysis method is a valid method for wear reliability.

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