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Item Information   Holdings       More by this author     Foti, Angelo J.     Subjects     Fluid power technology     Pneumatics     Hydraulics     Machine design     Digital computer simulation     MSE Project.     Browse Catalog     by author:      Foti, Angelo J.       by title:      Design and simulatio...         MARC Display

Design and simulation of a pneumatic/hydraulic impulse-fatigue test circuit / by Angelo J. Foti. by Foti, Angelo J. Subjects Fluid power technology   Pneumatics   Hydraulics   Machine design   Digital computer simulation   MSE Project. Description:  156 leaves : ill. ; 29 cm. Contents:  Advisor: Dr. John Lumkes, Jr. Committee members: Michael Swedish, Thomas Wanke. Introduction and background -- Literature review -- Methodology -- Design specifications -- Circuit specifications -- Operation of circuit -- Discussion and results -- Conclusions -- Recommendations -- References -- Bibliography -- Appendix A) Circuit Model B) Air Over Oil Liquid Pump Information C) Check Valve Information D) Accumulator Information E) D633 Direct-Drive Servovalve Information F) Circuit and General Information. The main purpose of this MSE Graduate Capstone Project is to design and simulate a pneumatic/hydraulic test stand circuit in which the output conforms to the American National Standards Institute (ANSI) and National Fluid Power Association (NFPA) recommended standard T2.6.1 R2-2001. The reason this project was undertaken was to determine if a pneumatic power source, could be used as the main driving force to test hydraulic components. Therefore the author is using an air over oil liquid pump to convert the air pressure (input) to oil pressure (output) thus feeding the circuit. This would be beneficial for companies involved in the fluid power industry since testing of their components would be easily facilitated by connecting the test circuit to an air-line and a 120V power source. This would allow test stand portability since the pneumatic and electrical power sources needed are readily available in most organizations. This project will describe the necessary components used in the circuit, their mathematical models and assumptions the author made. The mathematical models of each component will be represented by block diagrams and subsequently simulated on Simulink software. The validation method employed will be to use Simulink software to simulate the test circuit (non-linear) thus determining if the output conforms to the specified criterial represented in ANSI/(NFPA) T2.6.1 R2-2001. Results from the calculations, mathematically modeling and test circuit simulation conclude that the final output does conform to NFPA standards. The test circuit can test components at using an input air-pressure of 105 psi at test pressures ranging from 3,000 to 3,400 psi and test volumes up to 80 in3 (44.33 oz.). At these maximum test values the cyclic frequency reaches 3.33 Hz and the accumulator is active approximately four times as long as that of the pump.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .F68 2005 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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