Control of a single-acting hydrulic & cylinder synchronizing circuit - Essay Example

Lab Double-acting Cylinder Circuit and synchronizing Hydraulic Cylinder Purpose: To investigate the principle behind the working of a double –acting cylinder circuit operated by four valves and to demonstrate how hydraulic cylinders can be synchronized.Background InformationSome machines operating with more than one cylinders demand that the cylinder strokes be absolutely synchronized for proper functioning of the machine. In this case, the load, lengths and line sizes, and friction of the machine and cylinder require to be identical for them to stroke at the simultaneously and at the same rate.

According to (Watson 445), the system friction changes constantly and hence, for successful synchronization, machine loading should be varied.The most precise technique to synchronize hydraulic cylinders is to use servo valves. Servos valves independently direct each cylinder with the help of electronic arrangement feedback and balance each actuators position with all others. Though expensive, this is the most accurate way to synchronize cylinders. According to (Watson 451), servo valves technique of synchronizing also work with cylinders that does not go to a home position.

In this experiment, air at high pressure is used to operate the valves. In addition, several weights and a lever used to measure the moment of a cylinder circuit about a fixed positionEquipments A four-way valveA lever arm support for operating the cylinder bracketsManually operated valveA pump to provide air at high pressureSeveral lab weights Cylinder brackets\Work CitedWatson, Ben. Modern Diesel Technology: Mobile Equipment Hydraulics : A Systems and Troubleshooting Approach. Clifton Park, N.Y.: Delmar Learning ;, 2011. Print.