Transient Phenomena Caused by Directional Control Valve in a Hydraulic Pipeline
نویسندگان
چکیده
منابع مشابه
Exponential Tracking Control of a Hydraulic Proportional Directional Valve and Cylinder via Integrator Backstepping∗
Hydraulic systems are widely used in manufacturing processes and transportation systems where energy intensive operations are performed and machine control is vital. A variety of ßow control products exist including manual directional control valves, proportional directional control valves, and servo-valves. The selection of a control valve actuation strategy is dependent on the system respon...
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Consider a pipeline with time dependent delivery volumes at various load points. Such a system can be controlled by changing with time the pressure setpoints at stations to manipulate flow and linepack. We present an algorithm that computes an optimum set of time-varying setpoint values (out to a user-specified simulation horizon) simultaneously for all stations. These setpoint values are compu...
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In the research presented in this paper, a failure analysis were carried out to identify causes of an incident, which had taken place after an operation to repair a leak in an interstate natural gas pipeline. In this operation, a partial encirclement reinforcement (patch) was welded to the carrier pipe according to an available hot taping procedure, while gas was flowing in the pipeline. The fa...
متن کاملAnalysis of Failure Caused by In-service Welding in anX52 Gas Pipeline
In the research presented in this paper, a failure analysis were carried out to identify causes of an incident, which had taken place after an operation to repair a leak in an interstate natural gas pipeline. In this operation, a partial encirclement reinforcement (patch) was welded to the carrier pipe according to an available hot taping procedure, while gas was flowing in the pipeline. The fa...
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ژورنال
عنوان ژورنال: Bulletin of JSME
سال: 1973
ISSN: 0021-3764,1881-1426
DOI: 10.1299/jsme1958.16.1911