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Improving On The Reliability Of Hydraulic System By Vibration Response Analysis

Posted on:2008-03-26Degree:MasterType:Thesis
Country:ChinaCandidate:L L XuFull Text:PDF
GTID:2132360212983664Subject:Mechanical design and theory
Abstract/Summary:PDF Full Text Request
Hydraulic system is the important constituent structure of navigation, aerospace, ship, traffic and the engineering machine, and is a typical dynamic force supporting system, its working quality and reliability play an important role in the safe operating of the whole engineering structure system. The simulation technique has been widely approved to be a valuable method in design, analysis and improvement of the hydraulic system. Some dynamic simulation software of hydraulic system have been developed, but not widely been used because the hydraulic simulation software packages have no good operating interface, and is difficult to use except those professional users. From the view of the application of simulation system, reducing the modeling time, improving the communication between person and computer and graphic modeling technology have become research points of simulation technique.In this thesis, the mathematic modeling of hydraulic elements such as plunger pump pipeline valve accumulator and a typical aircraft hydraulic system have been established based on having studied all kinds of hydraulic systems and simulation software packages. The software packages of hydraulic elements, a hydraulic system and communication between elements and the hydraulic system have been programmed using object oriented programming (OOP) language. The software package has good communication interface, is easy operating, and has a updating connection.By dynamic property simulation of a typical hydraulic system, the flow, pressure, impedance, sound energy density and sound power at any cross section of the pipe system aroused by the noise of plunger pump propagating through pipes have been calculated, and related curves between above parameters and pump speed have been given, which approves the right and reliability of the software package.
Keywords/Search Tags:Hydraulic system, Pipe system, Graphic modeling, Software package, The Simulation
PDF Full Text Request
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