The Comparison of Portal Frame Design by Penalty Function Optimization and Traditional Method

2012 ◽  
Vol 452-453 ◽  
pp. 348-353
Author(s):  
Xian Gen Lin ◽  
Yong Xu
Keyword(s):  
Penalty Function ◽  
Traditional Method ◽  
Optimization Design ◽  
Function Optimization ◽  
Frame Design ◽  
Engineering Statistics ◽  
Portal Frame ◽  
Practical Engineering ◽  
Tapered Members ◽  
Selection Of

The comparison of portal frame design by penalty function optimization and traditional method aim at 30m span portal frame with tapered members was made. It was found that the essence of optimization design was to research the reasonable distributing of sections, through the interaction between capacity and key section parameters the optimization design were realized. Now the idea of green and less energy is fashionable, then optimization design is very significant in practical engineering. According to engineering statistics the optimization design can reduce 15%~30% of material quantity. In this article the selection of parameters during optimization design was expounded.

Optimization Design on 500kV Substation Overhead Concrete Platform

2013 ◽  
Vol 849 ◽  
pp. 422-426
Author(s):  
Xiao Qi ◽  
Xiao Guang Wei ◽  
Ya Nan Li
Keyword(s):  
Mathematical Model ◽  
Cost Saving ◽  
Bearing Capacity ◽  
Penalty Function ◽  
Optimization Design ◽  
Goal Function ◽  
Optimization Method ◽  
Function Optimization ◽  
Frame Structure ◽  
The Cost

To achieve the optimization of 500 kV substation overhead concrete platform, regarding cost minimum of the frame structure as the optimization goal function, according to the conditions and the bearing capacity, using penalty function optimization method to design the frame structure concrete platform and establish its mathematical model, so as to make the concrete platform meet with the cost saving demands under the premise of structure safety.

Competition of Verb Aspects and Its Resolution as a Creative Act (Based on the Material of Aspects Variants in the Texts by F. M. Dostoevsky)

2020 ◽  
Vol 81 (2) ◽  
pp. 56-63
Author(s):  
S. A. Karpukhin
Keyword(s):  
Traditional Method ◽  
Contextual Analysis ◽  
Verb Aspect ◽  
Component Theory ◽  
Two Component ◽  
Artistic Interpretation ◽  
New Perspective ◽  
First Time ◽  
Selection Of ◽  
Aspectual Meaning

The article considers the competition of verbal aspects from a new perspective. Instead of employing the traditional method of demonstrating this phenomenon — an empirical replacement of the aspect of a verb in a phrase with the opposite — the author examines Dostoevsky’s choice between the variants found in different manuscripts of the same text. For the first time, based on a two-component theory of the semantic invariant of a verb type, the aspectual meaning of the selection of a verb aspect is revealed and, as a result of contextual analysis, an artistic interpretation of the selected type is proposed.

Analysis of the Permanent Magnet Guideway of High Temperature Superconducting Maglev

2013 ◽  
Vol 745-746 ◽  
pp. 197-202 ◽  
Author(s):  
Chang Qing Ye ◽  
Zi Gang Deng ◽  
Jia Su Wang
Keyword(s):  
High Temperature ◽  
Permanent Magnet ◽  
High Speed ◽  
Optimization Design ◽  
Optimization Methods ◽  
High Temperature Superconducting ◽  
Practical Engineering ◽  
Hts Maglev ◽  
Ndfeb Permanent Magnet ◽  
The Cost

t was theoretically and experimentally proved that High Temperature Superconducting (HTS) Maglev had huge potential employment in rail transportation and high speed launch system. This had attracted great research interests in practical engineering. The optimization design was one of the most important works in the application of the HTS Maglev. As the NdFeB permanent magnet and HTS materials prices increased constantly, the design optimization of the permanent guideway (PMG) of HTS maglev became one of the indispensable works to decrease the cost of the application. This paper first reviewed four types of PMGs used by the HTS Maglev, then disucssed their structures and magnetic fields. Finally, the optimization methods of these four PMGs were compared. It was suggested that with better optimization methods, the levitation performance within a limit cost got better. That would be helpful to the future numerical optimization of the PMG of the HTS maglev.

Improved Wavelet Threshold Denoising Method

2014 ◽  
Vol 602-605 ◽  
pp. 3177-3180
Author(s):  
Wei Ping Cui ◽  
Li Juan Du
Keyword(s):  
Traditional Method ◽  
Wavelet Denoising ◽  
Threshold Function ◽  
Signal Denoising ◽  
Improved Method ◽  
Denoising Method ◽  
Comparison And Analysis ◽  
Selection Of

In this paper, through comparison and analysis of various wavelet denoising methods, a new threshold function is constructed, and the selection of threshold is improved. Signal denoising simulation is made by the software MATLAB, the results show that the improved method is superior to the traditional method, and obtain a better denoising effect.

scholarly journals Optimized Soft Frame Design of Traditional Printing and Dyeing Process in Xiangxi Based on Pattern Mining and Edge-Driven Scene Understanding

2021 ◽  
Author(s):  
Hong Xiao
Keyword(s):  
Optimization Design ◽  
Pattern Mining ◽  
Scene Understanding ◽  
Spiritual Needs ◽  
Arts And Crafts ◽  
Frame Design ◽  
Traditional Art ◽  
Dyeing Process ◽  
Working People ◽  
The Impact

Abstract Traditional folk crafts are handicrafts and corresponding activities created by Chinese working people in all ages to meet their material and spiritual needs by using various material materials and handicrafts. It reflects the general characteristics of Arts and crafts, but also shows the distinctive personality of national culture. The folk printing and dyeing process of Miao Nationality in Xiangxi and Southeast Guizhou has this characteristic, which once brought a lot of convenience to people's life and became an important part of people's life at that time. However, under the impact of economic globalization, the diversity of human culture and the intangible cultural heritage of all ethnic groups are facing serious challenges. With the development of economy, the traditional manual printing and dyeing technology is gradually replaced by modern printing and dyeing technology, and its position in textile printing and dyeing is greatly reduced. However, it can not be ignored that the manual printing and dyeing process is still full of vitality, which is welcomed and loved by the public in the optimization design of fashion textiles. Traditional art carries a lot of spiritual things in its material form, so it has high aesthetic value, cultural value and profound spiritual connotation. Therefore, the optimization design of traditional printing and dyeing process framework in Xiangxi is worth studying. In this paper, using big data pattern mining algorithm and scene understanding algorithm, a framework optimization system of traditional printing and dyeing process in Xiangxi is constructed.

scholarly journals Min-Max Predictive Control of a Five-Phase Induction Machine

Energies ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3713
Author(s):  
Daniel R. Ramirez ◽  
Cristina Martin ◽  
Agnieszka Kowal G. ◽  
Manuel R. Arahal
Keyword(s):  
Fuzzy Logic ◽  
Predictive Control ◽  
Loss Function ◽  
Traditional Method ◽  
Induction Machine ◽  
Decision Function ◽  
Current Control ◽  
Stator Current ◽  
First Time ◽  
Selection Of

In this paper, a fuzzy-logic based operator is used instead of a traditional cost function for the predictive stator current control of a five-phase induction machine (IM). The min-max operator is explored for the first time as an alternative to the traditional loss function. With this proposal, the selection of voltage vectors does not need weighting factors that are normally used within the loss function and require a cumbersome procedure to tune. In order to cope with conflicting criteria, the proposal uses a decision function that compares predicted errors in the torque producing subspace and in the x-y subspace. Simulations and experimental results are provided, showing how the proposal compares with the traditional method of fixed tuning for predictive stator current control.

Experiment on the Hysteretic Behaviors of Light-Weight Steel Portal Frame with Tapered Members

2011 ◽  
Vol 368-373 ◽  
pp. 206-210
Author(s):  
Qi Cai Li ◽  
Zhen Shan Wang ◽  
Ming Zhou Su ◽  
Xue Chao Shao ◽  
Lin Shen
Keyword(s):  
Energy Consumption ◽  
Bearing Capacity ◽  
Stiffness Degradation ◽  
Seismic Load ◽  
Seismic Action ◽  
Light Weight ◽  
Loading Test ◽  
Skeleton Curve ◽  
Portal Frame ◽  
Tapered Members

In order to study the seismic behavior of steel portal frame structures, Cyclic loading test on a 1:3-scaled model of single-story single-bay steel portal frame with tapered members has been carried out. Based on test results, hysteretic curve, skeleton curve, stiffness degradation and transverse displacement of the structure are obtained. Meanwhile, the seismic performances of the structure are analyzed from aspects of ductility, energy consumption, stiffness degradation, bearing capacity, etc. It is concluded that ductility and energy consumption capacity of this structure are poor; because of its light weight, the structure attracts little seismic load; when portal frame structure designed according to current Chinese design codes suffers from small seismic action, it has enough seismic bearing capacity.

Application of Taguchi Method to Optimization of Cutting Force and Temperature during Turning of Difficult to Cut Materials

2016 ◽  
Vol 686 ◽  
pp. 114-118 ◽  
Author(s):  
Grzegorz Struzikiewicz ◽  
Wojciech Zębala ◽  
Ksenia Rumian
Keyword(s):  
Taguchi Method ◽  
Cutting Force ◽  
Desirability Function ◽  
Optimal Solution ◽  
Regression Function ◽  
Function Optimization ◽  
Close Proximity ◽  
Optimal Setting ◽  
Steel Turning ◽  
Selection Of

The paper presents an analysis of the selection of the regression function in the optimization of steel turning using Taguchi method. The study attempts to investigate cutting force and temperature during turning of steel. Taguchi L16 (4) 2 orthogonal array has been applied for experimental design. S/N ratio and ANOVA analyses were performed to identify significant parameters influencing cutting force and temperature. Mathematical models for both response parameters i.e. cutting force and temperature roughness were obtained through regression analysis. The confirmation experiments carried out at optimal combination of parameters given by Taguchi’s analysis. The optimal solution provided by desirability function optimization was compared with the optimal setting of parameters given by Taguchi analysis. The optimization results provided by both techniques are in close proximity.

Superior Research for Selection of Bracing Structure of Deep Pit Foundation Based on Fussy Theory

2013 ◽  
Vol 838-841 ◽  
pp. 214-218
Author(s):  
Dong Li
Keyword(s):  
General Model ◽  
Engineering Application ◽  
Hard Work ◽  
Deep Foundation ◽  
Scientific Methods ◽  
Deep Pit ◽  
Practical Engineering ◽  
Fuzzy Math ◽  
Selection Of

Before the construction of the deep pit foundation, we must choose a project. Although there aren't many projects to be chosen as usual, we often feel that it's a very complex and hard work. Actually there is no a mature and general model to use. In this paper, the author attempted to use the theory of fuzzy math to establish a former to select the best project, meanwhile provided two ways to solve how to quantify the qualitative targets and how to determine the weights of the targets. Finally they were confirmed to be useful and successful by a practical engineering application. It is worthily to popularize these scientific methods in construction and management in deep foundation pits.

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