Temat: optimizing model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Current aspects of mathematical modelling of evaluating quality of agricultural products
Autorzy:: Lysa, O.
Powiązania:: https://bibliotekanauki.pl/articles/410740.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: target function
fuzzy restriction
vector-optimizing model
Opis:: The paper presents mathematical model of complex evaluation of the quality of production with optimizing indicators of crop growing. Multicriterion model is reduced to the problem of optimizing with the predetermined target function which considers almost all parameters of the prodution quality. The model takes into account limits of modifications of quality characteristics of production by introducing the indistinct description of the quality characteristics of productions. The model was developed on the example of evaluating quality of the barley grain.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 4; 59-62
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Optimization of the structural components of gearwheels of cylindrical reducing gears
Autorzy:: Vasyljeva, O.
Kuzio, I.
Powiązania:: https://bibliotekanauki.pl/articles/410803.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Oddział w Lublinie PAN
Tematy:: optimization
structural components of a tooth gearwheel
optimizing model
tooth gearwheel strength
gearwheel reliability
Opis:: For the first time the design equations for determining the structural components of cylindrical tooth gears of reduction units are improved allowing for the use of informational technologies (IT). On the basis of the equations obtained the optimizing mathematical model of the optimal synthesis of structural components of tooth gearwheels has been developed. For solving the optimizing model the Monte-Carlo method is applied. The structural parameters (quantities), obtained by the developed optimizing mathematical model, have optimal values with probability up to 0.95 under the conditions of necessary strength and production safety. The implementation of the optimization process is recommended at the design institutions for the design of the cylindrical reduction drives for different objects of mechanical engineering and into the educational process of higher technical educational institutions while studying theoretical matters, accompanied by the use of IT.
Źródło:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes; 2014, 3, 1; 127-132
2084-5715
Pojawia się w:: ECONTECHMOD : An International Quarterly Journal on Economics of Technology and Modelling Processes
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimization of parameters of heat exchangers vehicles
Optimizacia parametrov teploobmennyh apparatov transportnyh sredstv
Autorzy:: Melekhin, A
Powiązania:: https://bibliotekanauki.pl/articles/374855.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: optimizing
transport system
mathematical model
optymalizacja
system transportu
model matematyczny
Opis:: The relevance of the topic due to the decision of problems of the economy of resources in heating systems of vehicles. To solve this problem we have developed an integrated method of research, which allows to solve tasks on optimization of parameters of heat exchangers vehicles. This method decides multicriteria optimization problem with the program nonlinear optimization on the basis of software with the introduction of an array of temperatures obtained using thermography. The authors have developed a math-ematical model of process of heat exchange in heat exchange surfaces of apparatuses with the solution of multicriteria optimization problem and check its adequacy to the ex-perimental stand in the visualization of thermal fields, an optimal range of managed pa-rameters influencing the process of heat exchange with minimal metal consumption and the maximum heat output fin heat exchanger, the regularities of heat exchange process with getting generalizing dependencies distribution of temperature on the heat-release surface of the heat exchanger vehicles, defined convergence of the results of research in the calculation on the basis of theoretical dependencies and solving mathematical model.
Актуальность темы обусловлена решением задач ресурсоэнергосбе-режения в системах обогрева транспортных средств. Для решения данной проблемы разработан комплексный метод исследований который позволяет решать задачи оптимизации параметров теплообменных аппаратов транспортных средств. Данный метод решает многокритериальную задачу оптимизации с помощью програм-мы нелинейной оптимизации на базе программного комплекса с введением массива температур полученных с помощью тепловизионной съемки. Авторами разработана математическая модель процесса теплообмена на теплообменных поверхностях аппаратов с решением многокритериальной задачи оптимизации и проверкой ее адекватности на экспериментальном стенде при помощи визуализации тепловых полей, сформирован оптимальный диапазон управляемых параметров, влияющие на процесс теплообмена при минимуме металлоемкости и максимуме теплопроизводительности ребра теплообменного аппарата, определены закономерности процесса теплообмена с получением обобщающих зависимостей распределения температуры на теплоотдающей поверхности теплообменного аппарата транспортных средств, определена сходимость результатов исследований при расчете на основании теоретических зависимостей и решения математической модели.
Źródło:: Transport Problems; 2014, 9, 3; 107-115
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Optimizing control by robustly feasible model predictive control and application to drinkingwater distribution systems
Autorzy:: Tran, V. N.
Brdys, M. A.
Powiązania:: https://bibliotekanauki.pl/articles/91723.pdf
Data publikacji:: 2011
Wydawca:: Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:: optimizing
model predictive control
MPC
Robustly Feasible MPC
RFMPC
Drinking
Water Distribution Systems
DWDS
genetic algorithm
Opis:: The paper considers optimizing Model Predictive Control (MPC) for nonlinear plants with output constraints under uncertainties. Although the MPC technology can handle the constraints in the model by solving constraint model based optimization task, satisfying the plant output constraints under the model uncertainty still remains a challenge. The paper proposes Robustly Feasible MPC (RFMPC), which achieves feasibility of the outputs in the controlled plant. The RFMPC which is applied to control quantity in Drinking Water Distribution Systems (DWDS) is illustrated by application to the DWDS example. In the simulation exercise, Genetic Algorithm is selected as the optimization solver and the reduced search space methodology is applied in the implementation under MATLABEPANET environment.
Źródło:: Journal of Artificial Intelligence and Soft Computing Research; 2011, 1, 1; 43-57
2083-2567
2449-6499
Pojawia się w:: Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:: Biblioteka Nauki

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