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Reliability-based structural optimization
Slowik, Ondřej ; Pukl, Radomír (referee) ; Novák, Drahomír (advisor)
This thesis presents the reader the importance of optimization and probabilistic assessment of structures for civil engineering problems. Chapter 2 further investigates the combination between previously proposed optimization techniques and probabilistic assessment in the form of optimization constraints. Academic software has been developed for the purposes of demonstrating the effectiveness of the suggested methods and their statistical testing. 3th chapter summarizes the results of testing previously described optimization method (called Aimed Multilevel Sampling), including a comparison with other optimization techniques. In the final part of the thesis, described procedures have been demonstrated on the selected optimization and reliability problems. The methods described in text represents engineering approach to optimization problems and aims to introduce a simple and transparent optimization algorithm, which could serve to the practical engineering purposes.
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Reliability-based structural optimization
Slowik, Ondřej ; Červenka,, Jan (referee) ; Lepš, Matěj (referee) ; Novák, Drahomír (advisor)
Presented PhD thesis deals with reliability-based optimization of structures and problems related to automatization of various algorithms of solution for various reliability-based optimization task definitions. The text presents a general definition of the reliability-based optimization problem, followed by a description of state of the art within the broad field of reliability-based optimization as well as the current state of the art of selected methodology utilized or developed by the author during his work in order to meet objectives of his dissertation. The theoretical part of the thesis is supplemented by a description of developed software tools and by examples of described methodology applications during a solution of practical problems of nonlinear numerical models reliability-based optimization and problems of inverse analysis.
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Optimization of Routes for Travel Agencies
Hal, Marek ; Kučera, Petr (advisor) ; Klára, Klára (referee)
This diploma thesis deals with an issue of tour-routes and an optimization of routes for travel agencies, namely the Rialto travel agency from the city Přerov. Two tours, offered by this travel agency, are optimized and three optimization methods are used - the nearest neighbour metho, the Vogel approximation Method and the savings method.
The first part of this thesis describes the theoretical issue of topic - the legislation concerning the travel agencies, transportation logistics, the usage of operations research in transport logistics and travelling salesman problem issue and methods used to solve the travelling salesman problem. In the second part the Rialto travel agency is briefly described, then the tours are described and these tours are optimized.
The last part contents the analysis of obtained results, the results are evaluated and suggestions considering the economic, temporal and legislative (rest and working hours of drivers) aspects are made.
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Optimization of Transportation Routes between a Chosen Company and Its Clients
Ďurďa, Jakub ; Kučera, Petr (advisor) ; Petr, Petr (referee)
This thesis deals with the adjustment of the current distribution routes of the company CHEMIE STAR Ltd. and at the same time with a creating of new distribution routes with the aim of economic savings, which is achieved through a reduction in the length of routes and the time required for the routes. In the introductory theoretical part of the work the logistics is defined, its functions, importance and influence on the enterprise. And this part also provides an overview of methods dealing with the traveling salesman problem. In the practical part the optimization of the input data into the model at the current routes is performed, where there is always selected the cheapest route between the two nodes using unit costs. Subsequently, the methods solving the traveling salesman problem are applied, namely the method of the Nearest neighbor, Vogel approximation method and Clark-Wright method. The layout of the new routes, which is limited in capacity by car and the purchasers requirements, is done using Mayer method and Sweep algorithm and with the subsequent application of the method solving the problem of traveling salesman problem. In the chapter evaluation of the results and recommendation all obtained outcomes are compared and interpreted.
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Optimalization of Routes for Travel Agencies
Sieberová, Tereza ; Kučera, Petr (advisor) ; Mudrychová, Kristýna (referee)
This Bachelor thesis Optimization of Routes for Travel Agencies deals with the solution of a circular transport system problem, based on the information from a travel agency. The first part of the thesis is dedicated to a literary recherche about this issue, and basic concepts and individual methods, which can be used for optimization of routes, are explained here. The second part briefly describes a travel agency and a selected tour, which is then optimized through selected methods, in order to find a route, which ensures the lowest costs. The end of the work deals with evaluation of the result and suggesting more convenient solution of the trip.
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Optimization of Routes for Public Transport
Neumarová, Andrea ; Kučera, Petr (advisor) ; Fejfar, Jiří (referee)
This bachelor thesis, Optimization of Routes for Travel Agencies, deals mainly with traveling agency problem and its optimization for a specific travel agency. For the purposes of this research, the author has chosen routes from Václav Haver International Airport to several hotels from Prag area - Andel's Hotel Prague, Art Deco Imperial Hotel, EA Hotel Jasmín, Hotel Fortuna Rhea, InterContinental Prague, Orea Hotel Pyramida Praha, Panorama hotel Prague. The main object is to examine which of the selected tours are economically optimized (by costs).
The theoretical chapter is focused to the distribution tasks as well as methods, whose application leads to the optimization of the routes.
The practical chapter includes the modificated nearest neighbor method, and the Vogel approximation method. To illustrate the application of heuristic methods the calculation is carried out by savings method, too. In conclusion, the obtained results are evaluated and suggestions made for a more economic solutions of the routes examined
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Optimalization of Routes for Travel Agencies
Král, Filip ; Kučera, Petr (advisor) ; Mudrychová, Kristýna (referee)
The bachelor´s work devotes to solving travelling salesman problem for transport company Gumdrop s. r. o., which organizes tours to Croatia and Italy.
There is a literacy research in the first part of bachelor´s work, which is focused to explanation of approximations methods. There is a short introduction of transport company in the beginning of the second part. Two foreign travelling salesman problems and one gathering route in the Czech Republic were solved for this company.
The ending part interprets results, which were presented in transport company. There is their reaction also.
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Optimization of Routes for Delivery Services Firms
Jindra, Tomáš ; Kučera, Petr (advisor) ; Pavlíčková, Petra (referee)
This bachelor´s thesis deals with the optimization of routes for delivery services firms. The thesis consist of a theoretical and a practical part. The theoretical part explains the concepts of logistics, logistics chain and travelling salesman problem with optimization methods used in the practical part. In the practical part three routes for delivery service firm Zásilkovna.cz are optimized by the nearest neighbour method, Vogel approximation method and savings method. In the end the results are compared in the lenght of routes and financial savings.
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Optimization of Transportation Routes between a Chosen Company and Its Clients
Mazánek, Tomáš ; Kučera, Petr (advisor) ; Petr, Petr (referee)
The subject of this diploma thesis titled "Optimization of Transportation Routes between a Chosen Company and Its Clients" is the logistic routes optimization of the selected company, which is in thesis case company MITRANS - HK s.r.o. From company routes portfolio all circle routes are selected, which are lately solved by different methods, which are used for traveling salesman problem. Then the provided results are evaluated and compared between themselves and between real used routes variants. The thesis also handle the economic efficiency of optimization, which is presented on solved routes.
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Optimization of delivery precincts routes
Suchý, Pavel ; Kučera, Petr (advisor) ; Houška, Milan (referee)
The aim is to optimize the selected route for the given Czech Post Office.
For the purpose of optimization approximation methods - focusing primarily to minimize the total distance and costs of their own transportation were used.
According to the amount of input data, which was avalaible, the optimation model cases (examples) in the system of contracting authority were evalueted.
The success of each method was compared, and the software solution was done.
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