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Air Suspension Systems for Passenger Car Chassis
Mračnová, Michaela ; Zháňal, Lubor (referee) ; Fojtášek, Jan (advisor)
The main goal of this bachelor’s thesis is to characterise pneumatic suspension systems. The introductory chapter chronicles the historical development of these systems. The thesis includes the description of the main components of pneumatic suspension systems and explains theirs functions. Furthermore, it describes the principle of the system operation and derivation of the equations expressing characteristic system properties. The last chapter presents the benefits of systems in terms of driving dynamics and comfort.
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Measuring the Manoeuvres of Public Transport Vehicles to Determine a Comfortable and Safe Ride
Hlavová, Vendula ; Petrás, Jan (referee) ; Tokař, Stanislav (advisor)
The comfort perceived by passengers during transport in public transport plays a vital role, and its improvement can lead to attracting more customers. For this reason, there is a constant effort to improve the comfort of the passenger. This thesis deals with the objective measurement of the maneuvers of MHD in Brno (tram, trolleybus, bus) with the XL Meter and together with the subjective evaluation of the standing and sitting figurant, determines the limit values of longitudinal and transverse acceleration for comfortable ride and dangerous ride, which can lead to accidents to passengers.
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Values, models and ideals of the youth
Čermáková, Markéta ; Koťa, Jaroslav (advisor) ; Poláčková, Věra (referee)
Values, models and ideals of the youth. Bachelor thesis. Prague: Faculty of Arts, Charles University in Prague, Department of Education, 2010, 59 pages. The aim of this bachelor thesis is to describe the circumstances of the impact of family, enviroment, media and society at values, models and ideals of youth. Klíčová
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Sample projects for operator panels
Urbánek, Matouš ; Šír, Michal (referee) ; Zezulka, František (advisor)
In this bachelor’s thesis will learn about the development of exemplary projects that are designed with fixed functionality for operator panels SIEMENS (BASIC, COMFORT, RT). For this task, I have a development environment TIA portal that brings together many software tools and programs. With which allowed me to create code for specific hardware, and communication with him, or in simulation mode to test the behavior of the application in a real environment. Code, on the PLC is required for the platform (PLC) S7-1200. It is modern and provides flexibility in making out our needs in automatik. The task is engaged, firstly synchronization solution PLC and HMI operator panel. Secondly resipes in these panels.
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Control System of Building using Modelling and Simulation
Mohamad, Mohamad Kheir ; Ostrý, Milan (referee) ; Masaryk, Michal (referee) ; Štětina, Josef (advisor)
Udržovaní vnitřních klimatických podmínek tak, aby byly v souladu s tepelným komfortem lidí, je klíčovou otázkou pro řízení systémů vytápění, větrání a klimatizace (HVAC systémy). Počítačové modelování nabízí virtuální prostředí pro simulaci vnitřních i vnějších podmínek a s jeho pomocí je možné navrhnout řešení pro řízení technických zařízení budov. Tento proces vyžaduje pochopení těchto prostředí z fyzikálního a matematického hlediska tak, aby bylo možné fyzikální procesy daných prostředí prezentovat pomocí vztahů a rovnic odrážejících jejích různé parametry. Simulační proces dále nabízí možnost popsat interakci mezi těmito modely a jejich chování v čase, dává výchozí reprezentace těchto prostředí, a umožňuje pochopení jejich chování před přenosem těchto modelů do reálných aplikací. Simulace umožnuje respektovat, a ovlivňovat jejích chování přes kontrolu navržených modelů. MATLAB/SIMULINK software má pokročilé schopnosti pro simulace systémů HVAC, a to vytvořením širokého pracovního prostředí pro designéry v závislosti na vývoji matematických modelů a jejích simulace pomocí SIMULINK, aby výsledky mohly být slučitelné s požadovanými výstupy. Tato dizertační práce se zaměřuje na proces modelování vnitřního prostředí v budovách, aby bylo možné pochopit chování klíčových parametrů, které mají vliv na tepelnou pohodu obyvatel či uživatelů, matematické modely vnitřního prostředí posluchárny byly navržené speciálně pro tři základní parametry: koncentrace oxidu uhličitého, teplota vzduchu a relativní vlhkost. Změny chování těchto parametrů v průběhu času jsou simulovány a poté strategie kontroly návrhu těchto parametrů může je udržet ve vhodných rozmezích komfortních pro obyvatele či uživatele, i když změny venkovního klimatu, tepelné a hmotnostní zatíží interiér. Pomocí matematických metod, některé optimalizační metody byly navrženy za účelem snížení spotřeby energie bez vlivu na mezní hodnoty těchto parametrů. Proces validace modelu se provádí porovnáním výsledků s reálnými výstupy monitoringu Honeywell Enterprise Buildings Integrator systémem (EBI) nainstalován v areálu univerzity.
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Sports car for people with disabilities
Lopušek, Dávid ; Růžička, Bronislav (referee) ; Brandejs, Jan (advisor)
The master thesis deals with the engineering design and realization of a sports electric vehicle for disabled people. The first part of thesis summarize competitive vehicles on market and also the necessary theoretical knowledge for the design phase. After analyzing the research and determine the resulting vehicle concept follows the draft design. In this section based on calculations was chosen the solutions and necessary components for a vehicle. The following section describes the structure of the vehicle in implementing selected components. In conclusion, the evaluation of the proposed solution.
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Design of representative car
Nevřela, Petr ; Paliatka, Peter (referee) ; Karásek, David (advisor)
My concept of a premium car conforms to all the requirements of the premium car segment. The car should at first sight look majestic. Strong styling is supplemented with luxury elements. The applied engine comprises contemporary technological transition to alternative engines. What makes this project more conceptual is taking advantage of advanced technology. This diploma project is not designed for any known car manufacturer. This method is demanding because the final concept cannot be associated with any known brand and at the same time offers maximum freedom of styling.
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Comfort and Safety
Ševčík, Pavel ; Mikulčík, Aleš (referee) ; Hájek, Vítězslav (advisor)
This bachelor’s thesis considers by safety and comfort systems in motor vehicles. Is concentrate to safety systems for example seat belts and tighteners, airbags and their separations and about direct units for activation safety systems. Next about system of active head rest and about safety transport of children in cars. Deal with comfort systems and shortly discuss about trend of safety systems. The last part of bachelor’s thesis considers of analyse and experimental measurement of dump sensor. Function of accelerometer ADXL150 is described and the practical measurement is made with including evaluation of measured results.
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Comparison of semi-active and conventional vehicles suspension systems in terms of driving comfort
Baroš, Eduard ; Blaťák, Ondřej (referee) ; Suchý, Jan (advisor)
The main object of this bachelor thesis is comparing characteristic properties of selected types of suspension affecting driving comfort of vehicles. The introduction briefly acquaints the history and purpose of the suspension. It describes the dynamics of vehicle suspension. It includes distribution, description of the construction and activity of the suspension elements, their use in conventional type of suspension and semi-active suspension system. Further classifies known suspension systems into categories and deeply analyses their properties. The result is a comparison focusing on driving comfort. The last chapter is dedicated to suspension developing trends in near future.
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Comfort of mothers during childbrith
HANZALOVÁ, Martina
This thesis for a bachelor's degree is dealing with the comforts of expectant mother in the process of delivery. A theoretical part is divided into three main chapters. The first chapter covers the delivery description and its classification. The second chapter deals with an inclusive nursing care for a mother-to-be in the process of delivery and a midwife's care during every particular labour phase. The last chapter describes all aspects which affect the delivery process. The exploratory part of this thesis is focused on the contentment of women in labour with the offer of comforts during their delivery. I have set two aims. The first aim was focused on the women awareness of pharmacological and non-pharmacological techniques which cope with the pain in the process of delivery. The second aim was focused on the women contentment with comfort offer in the labour ward and the treatment of nursing staff. I have chosen three research questions: Which possibilities of pharmacological and non-pharmacological techniques do the women know and use to ease the pain in the process of delivery? Which relaxation aids have been offered in the process of delivery? To what extent the woman has been satisfied with the ambience and the nursing staff treatment? I chose the method of qualitative research. I carried on a survey to get the detailed and comprehensive information. The whole research was transferred to two main categories and its subcategories. During investigations it emerged that most respondents found the information on the Internet, in professional literature, antenatal courses etc. Hydroanalgesia appeared to be the most known alternative to ease the pain in the form of shower or bath. As far as pharmacological possibility is concerned the respondents mentioned only epidural analgesia. The comforts category describes general comforts which the midwife offers to the expectant mothers in the process of delivery. Antenatal preparation was given to most respondents with the previous consent and they were offered drinks in the labour ward. Most respondents were also offered non-pharmacological techniques to ease the pain such as relief positions, gymnastics ball, massage, hydroanalgesia etc. No respondent was offered epidural analgesia, however, one respondent was relieved with the help of pharmacotherapy. The thesis also deals with the people present in childbirth and the influence of ambience. It was shown that most respondents had no reservations. The category which assesses the women contentment with the midwives attitude towards expectant mothers shows that most women were satisfied. The midwives were not only mental support but also they took care about their comfort and informed about the process of delivery. There was only one case when the woman was not satisfied and she would appreciate to get more information from the midwives. Unprofessional attitude of the midwives has an influence on the respondent assessment. The research shows that public health needs not only routine work but mainly human attitude and communication. Midwives should behave sympathetically, be assertive towards the women in labour and relieve the pain with the help of all available techniques in such a demanding situation as delivery is.
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