Hydraulic Energy dissipators are devices to protect downstream areas of basin from erosion by reducing the velocity of flow up to an acceptable limit. The stilling basins are transition structures fabricated to dissipate excess energy confined by flow with high velocity at the outlet of conduit or tunnel so that the flow beyond the basin does not threaten the firmness of bed and banks of downst...

To design hydraulic structures, predicting the discharge of flood is necessary, the main cause lies in failure that may occur in downstream. Most hydraulic structures were destructed because of the lack of resistance against floods with flow rate more than design flood, so selecting design flood is one of important decisions should be made as an effective factor accompany with other hydrologic ...

By analyzing and summarizing the process and requirements of cross beam installation, an underwater three-direction positioning equipment is developed. Through three sets of hydraulic cylinders and MGE sliders combining hydraulic synchronizing lifting technique and computer communication technology, precise automatic positioning is achieved. The equipment can be used in positioning other simila...

Abstract Existing hydraulic structures may show damage with increasing age and operation, so structural verification is crucial. In case of deficits, repair measures must be planned, their effectiveness demonstrated. The advent improved analysis methods subsequent standardization processes facilitate the existing to ensure sufficient reliability infrastructure. Among inland navigation structure...

This paper presents two nonlinear model-based control designs for a hydraulic system that consists of two mechanically coupled hydraulic cylinders actuated each by a separate servo-valve. Based on a physically-oriented nonlinear mathematical model of the test rig, a further model simplification results in a completely controllable MIMO system. Two different control structures are discussed and ...