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Improvement of company processes to assure safety of products
Zvolánková, Kateřina ; Jankových, Róbert (referee) ; Prostredník, Daniel (advisor)
The diploma thesis devotes to the process of ensuring functional safety of products in Bosch Rexroth Brno, which deals with industrial hydraulic systems. The first part introduces the basic legislative regulations concerning product safety and describes selected standards relevant to this thesis. The second part focuses on Bosch Rexroth and the current state in the field of ensuring functional safety of their products. It also includes a description of the functional safety solution of a specific project – a hydraulic try-out press. At the end of the thesis, improvements to the process of ensuring functional safety in response to the identified shortcomings are proposed.
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Methodology Development and Validation of Software for Safety-Related Parts of Control Systems in Theater Technique
Drlík, Michal ; Suchánek, Rostislav (referee) ; Sinay, Juraj (referee) ; Blecha, Petr (advisor)
This thesis describes what the theatre is and what types of machinery can be found there. Then the issue of stage technical machinery is presented into the czech context, respectively into the Europian legislation with the emphasis on the technical norms usage, which are necessary to fulfil in order to reach this aim. In the next part of the thesis is made the analysis of control systems, which are used in the stage technics with the emphasis on the functionality of these control systems, since this functionality determines number and range of possible danger and dangerous events, later on. These dangerous situations are named and specified in detail, thereby their existence, importance and necessity of solution is being emphasized. There is also a possible solution outlined that these dangerous events can be solved in many cases by using of these programmable systems relating to the safety, thereby safety functions realized by these functions. Then the single steps are described into V-model with appropriate documents of these V-model steps. Outcome of this thesis will be suggested model of method and its development and software validation for programmable and control systems in theatre technology.
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Self-Testing of Microcontrollers
Denk, Filip ; Šimek, Václav (referee) ; Strnadel, Josef (advisor)
This Master's thesis deals with functional safety of electronic systems. Specifically, it focuses on self-testing of the microprocessor and its peripherals at the software level. The main aim of the thesis is to design and implement a set of functions written in programming language C or assembly language, which automatically test the selected areas of the microcontroller. Resources and methods used in the implemented solution also aim to meet the requirements according to the safety standard IEC 60730-1, Annex H, Software Class B. The microcontroller NXP LPC55S69 was chosen as a hardware platform. It consists of two ARM Cortex-M33 cores. As a result, the example application is provided, which uses implemented test functions at the run-time. Example application also contains a graphical user interface with fault injection ability.
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Design of test stand for servodrive loading
Gricman, Roman ; Pavlík, Jan (referee) ; Huzlík, Rostislav (advisor)
This master’s thesis is focused on a design of test stand for servodrives loading. The theoretical part analyses state of art of load testing systems and describes main parts of workplaces. In the practical part is design of mechanical construction of workplace and electrical parts of machine. Master’s thesis also includes verification of properties of mechanical assembly and safety functionality verification.
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Safety of pneumatic press model
Nešpor, Tomáš ; Foukal, Roman (referee) ; Štohl, Radek (advisor)
This thesis is concerning functional safety of machinery, concretely safeguard of model of pneumatic press. In the document is briefly introduced norm, which determines safety standards during designing of safe machine. In the next part is mentioned risk assessment written as technical report. In risk assessment are identified possible risks that could appear during working on machine. Furthermore there are listed safety precautions ensuing from assessed risks, list of elements which has been used to safety control of pneumatic press and evaluation of risks according to EN ISO 13849-1 norm. In the part Programming of the device (Programování zařízení) is configuration manual of the device and description of control programme. The description of visualization in FactoryTalk programme is at the end of this thesis.
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CIP Safety
Šindelek, Milan ; Stibor, Karel (referee) ; Štohl, Radek (advisor)
This master’s thesis deals with the security machinery using available technologies. It contains a description to assess and reduce the risk of machine design of security measures and their application. In each section are provides descriptions of the standards, using the CIP Safety communication technology, design and implementation security measures of machine at two demonstration learning tasks.
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Functional safety of pressure transmitters of BD SENSORS company
Šimoník, Martin ; Hlinka,, Jiří (referee) ; Fuchs,, Pavel (advisor)
This master thesis examines the functional safety of the pressure sensor XMP i which is produced by BD SENSORS Company. The aim of this thesis is the demonstration of compliance of the pressure sensor XMP I with functional safety integrity level SIL3 requirements. The thesis is divided into three parts. The first part deals with the concept of functional safety, defines the basic concepts of functional safety, compares the approaches of functional safety according to selected standards and provides a general procedure for the functional safety determination. The second part deal with technical systems reliability defines reliability indicators and describes selected types of reliability analysis used in practice, especially the FMEA/FMECA analysis. Third part deals with the reliability analysis of the sensor XMP i and with evaluation of results.
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Evaluation of present technologies in ensuring functional safety of machinery
Smetana, Štěpán ; Tůma, Zdeněk (referee) ; Zahálka, Jiří (advisor)
This bachelor’s thesis is concerning functional safety as a whole. The first part of the paper will provide a description of what we can imagine under the term of functional safety and why we should pay attention to it. The document also includes introduction of safety components used in a frame of functional safety and its brief description. You can find here methodical approach to calculation of performance level PL and safety integrity level SIL, this calculation is shown on an example of an emergency stop function.
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Evaluation of present technologies in ensuring functional safety of machinery
Koten, Jakub ; Blecha, Radim (referee) ; Zahálka, Jiří (advisor)
This bachelor’s thesis deals with the evaluation of present technologies in ensuring functional safety of machinery. The first part devotes to the technical standards, which are related to this issue. It explains the most common terms occurring in these standards and the description of the basic principles for the design and ensuring the functional safety of machinery. The second part presents the elements ensuring functional safety. These are the input elements that monitor a device and its surroundings. Logical elements which, under specified conditions assess inputs and send output elements impulses to respond. Then there is the chapter showing on the example the design and verification of the performance level and safety integrity level.
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Safety analyse of steam turbine with accessories
Soukeník, Martin ; Turbomachinery), (Siemens (referee) ; Němec, Zdeněk (advisor)
This bachelor thesis deals by analysis functional safety protections of steam turbine. Safety functions are sorted to the relevant integrity level, is made calculation of average probability of failure and validated safety factor of safety instrumented system according to ČSN EN 61511 and ČSN EN 61508. Is made probability of failure emergency oil pump start-up calculation during shutdown of turbo set.
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