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Simulation Research on Hydraulic System of Marine Steering Gear

Author: DongHaoRan
Tutor: LinShaoFen
School: Jimei University
Course: Marine Engineering
Keywords: Shipping Servo Hydraulic system Simulation EASY5 ADAMS
CLC: U664.41
Type: Master's thesis
Year: 2009
Downloads: 360
Quote: 2
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Abstract


Steering gear as ship heading control equipment, and its performance is good or bad has an important impact on the safety of ship navigation. Hydraulic steering gear in the most widely used on the ship. Traditional steering gear system performance test before the first trials of the ship, or in the dock after repair, high cost, long cycle. Ship steering gear hydraulic system entities within the Institute of Laboratory objects simulation technology into the ship steering gear hydraulic system through the establishment of one of the simulation model of machine liquid, and aims to reduce the cost of the performance test of the hydraulic steering gear system, the system performance prediction and optimization of great significance to the study of complex systems simulation. Adoption the hydraulic integration as well as computer technology combined hydraulic system simulation of hydraulic technology trends. In this paper, a simulation software EASY5 and ADAMS ship steering gear hydraulic system co-simulation research ship steering gear hydraulic system and mechanical performance, real-time dynamic simulation of the system power and movement to achieve real-time interaction through data transmission, and test small compared to the error rate can intuitively predict the performance of the steering gear. This thesis include: an in-depth understanding of the composition and functions of the ship steering gear hydraulic system on the basis of, respectively, by the software EASY5 and software ADAMS platform to create a system of hydraulic components and mechanical components of the simulation model, system simulation model through parameter setting basic functions. Bidirectional variable pump model is created with the combination of the variable displacement pump and the three way valve in EASY5 analog Rudder cylinder double acting hydraulic cylinder with a single rod, while the corresponding elements plus control, and ultimately in the hydraulic The aspects of the function. Software CAXA three-dimensional model of the actual size of the establishment of the steering gear servos entity structure model is then imported into the ADAMS. 2 combined with the actual performance of the servo, and the simulation software EASY5 and ADAMS modeling their respective advantages and successfully achieve their joint simulation and real-time transmission of data between the hydraulic and mechanical systems, hydrodynamic and mechanical structures between the kinematics, dynamics organic links. 3 to complete the joint simulation of ship steering gear hydraulic system, combined with the the actual servo performance test to compare simulation results, the simulation results with test results coincide, thus validating the modeling is accurate. By doing Servo no-load and load test, the measured parameter to be set, such as: the rotational speed of the pump per revolution, as well as a safety valve opening pressure, etc., the function of test pressure is converted into a force on the loading cylinder, up to achieve a simulation module in ADAMS, Finally, the test results were compared to verify the correctness of the simulation modeling. The papers of the ship steering gear machine joint fluid simulation model, and by the validation of the test results, the simulation results can provide new avenues of research for ship steering gear hydraulic system performance simulation test done on the computer, the research method can be extended to the the other engineering hydraulic system simulation study.

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CLC: > Transportation > Waterway transport > Marine Engineering > Ship machinery > Deck machinery > Steering gear
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