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Study of Application Using Reliability Method in Pressure Vessel Design

Author: LuJiangLi
Tutor: DanYong
School: Northwestern University
Course: Chemical Process Equipment
Keywords: Reliability Probability distribution Stress - strength interference model Safety factor Pressure vessel
CLC: TH49
Type: Master's thesis
Year: 2007
Downloads: 401
Quote: 4
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Abstract


This paper is divided into seven chapters : The first chapter introduces the background of the research work , the importance of the content and the main work of the method and research . The second chapter introduces the basic concepts of reliability and the number of indicators . Chapter III details the the Reliability common probability distribution . The fourth chapter introduces the general formula of stress - intensity distribution of the interference theory and reliability , and are given several commonly used distribution reliability calculation . The fifth chapter describes the relationship between the factor of safety and reliability , and often used in the pressure vessel design safety factor . Chapter by engineering examples reliability design method applied to the design of the pressure vessel , and pressure vessel of conventional design and reliability design method were compared . Chapter VII of reliability design of pressure vessels , and gives a clear view . This paper describes a reliability design is a new approach , while pre- estimate of the reliability of the design objects , has been widely used in various fields of design . Reliability design objectives and design of concrete steps . Study reliability theory stress - strength interference model pressure vessel design . Use of existing national standards of safety factor and the coefficient of variation of the material linked to the standard value and the mean and standard deviation of the random variable . Assuming all random variables as the normal distribution, obtained corresponding to the safety factor with a certain reliability , the wall thickness of the pressure vessel design calculation formulas and reliability formula combination to design the pressure vessel . Finally, through a comparison of conventional design method for pressure vessel and reliability design method , draw the reliability of the design not only saves material , but the main thing is that it can quantitatively reflect the reliability of the container or failure probability .

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CLC: > Industrial Technology > Machinery and Instrument Industry > Gas compression and transportation machinery > Pressure vessel
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