Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 6 of 6 for “"Hydraulic machines"”.
-
Predicting lubrication performance between the slipper and swashplate in axial piston hydraulic machines
… interfaces within swashplate type axial piston machines represents the most complex and difficult part of the design process. The sliding interfaces are subject to significant normal loads which must be supported while simultaneously preventing component wear to ensure long lasting operation. …
-
Advanced Control Strategies for Mobile Hydraulic Applications
<p>Mobile hydraulic machines are affected by numerous undesired dynamics, mainly discontinuous motion and vibrations. Over the years, many methods have been developed to limit the extent of those undesired dynamics and improve controllability and safety of operation of the machine. However, in most …
-
Kinematic and dynamic calibration of hydraulically actuated manipulators
… mining, and forestry make use of heavy-duty hydraulic machinery with manipulators usually controlled manually by expert human operators. The hand controls that operate most articulated machines today do not take advantage of recent developments in robotics and control technology. There are …
-
Numerical and experimental investigation of flow in horizontal axis Pelton turbines
… were carried out at the Laboratory of Hydraulic Machines within the National Technical University of Athens (NTUA). The first phase experimental testing has found that the addition of the inserts have an overall effect on efficiency of no more than 0.5%, for single and twin jet …
-
The Turgo impulse turbine : a CFD based approach to the design improvement with experimental validation
… with these changes to ensure minimal loss in hydraulic efficiency. The manufacturing process was also researched and Design for Manufacture and Assembly (DFMA) was applied to the strengthened design identifying two optimised designs (LE4 and LE1) which will be tested before and after …
-
Disc friction loss in centrifugal pumps and hydraulic turbines
… na výzkum proudění v mezidiskových spárách hydraulických strojů s důrazem na čerpadla s nízkými specifickými otáčkami. Navzdory tomu, že tekutina v mezidiskových prostorách čerpadel zaujímá velmi malý objem, může výrazně ovlivnit proudění v celém stroji. To má následně vliv na provoz, …