DYNAMIC AND STEADY-STATE ANALYSIS OF SPLIT SPOOL FLOW DIVIDER VALVE | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 57, Volume 15, 15th International Conference on Applied Mechanics and Mechanical Engineering., May 2012, Page 1-13 PDF (917.7 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2012.36987 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. Metwally; A. S. Abou El-Azm; I. El-Sherif | ||||
| Egyptian Armed Forces. | ||||
| Abstract | ||||
| ABSTRACT Flow divider valve is a critical hydraulic component for which it used to synchronize actuators motion in a predetermined ratio. The flow divider valve types divided into a gear type flow divider and a spool type flow divider valve in which the spool has a rigid connection between the two ports. As a special construction, here, a split type spool flow divider has been studied to investigate the effects of special features on the static and dynamic characteristics of the flow divider valve. The construction of a special type flow divider valve, split spool type, has a compensating spool/orifice mechanism to maintain equal pressure drops across the valve metering orifice regardless of the change in system load. This split spool flow divider valve thought to have a low inertia effect and enhanced valve response. In the present work, the static and dynamic characteristics of this special type flow divider valve, split spool valve, have been studied at different load pressures. Experimental test rig has been established to investigate the effect of system pressure on the static characteristic of the special flow divider valve. A mathematical model has been carried out to study static and dynamic characteristics of the flow divider valve; the model has been verified by direct comparisons with the experimental results. For the dynamic response of the split spool flow divider; with the increase of the supply flow rates at the same load pressure, split spool flow divider valve spools displacements will increase equally in both spools at the same given response time. The supply flow rate is equally divided between the two outlets ports of the split spool flow divider valve will reach the half of the supply flow rate at rate increased with the increase of the supply flow rate. The comparison between experimental and mathematical model has a good agreement for the studied system pressures up to 50 bars. It has been found that this special type flow divider, split spool type, has a low inertia effect and enhanced valve response at the studied load pressure regimes. | ||||
| Keywords | ||||
| Flow divider valve; split spool type; valve modeling; hydraulic valve static and dynamic characteristics | ||||
|
Statistics Article View: 136 PDF Download: 187 |
||||
