Hydraulic Library User Manual - NUPET

Step 2: Set all fluid indices to the same value of 1Hydraulic Library 4.2User ManualThe best way to do this is to use the common parameters facility.1. Use Edit Select all.All the system components will be selected, unselect FP04-1 holding theSHIFT key and clicking on it.2. Use Parameters Common parameters.Figure 1.14 shows the Common parameters dialog box. This is a list ofcommon parameters for selected objects. They occur at least twice. Since thereare 3 hydraulic tanks and they all have pressures of 0 bar, this value isdisplayed. There are a number of submodels that have a parameter index ofhydraulic fluid. In FP02 the index of hydraulic fluid is set to 1 whereas in othersubmodels its value is 0. The value is displayed as ???. Similarly the primemover and rotary load both have a parameter (strictly speaking variable) withtitle shaft speed. Since the two values are different, ??? is displayed.Figure 1.14: Different values for common parameters3. Set the parameter index of hydraulic fluid to 1. This will change all theparameters in the system except FP01 (remember we selected Select all exceptFP01).Step 3:Run a simulation and plot some variablesYou will probably find the results very much the same as in example 1.Step 4:Organize a batch run to vary the air content1. In Parameter mode use Parameters Batch parameters.2. Drag and drop the air gas content from FP04-2 to the Batch control parametersetup dialog box.3. Set up the batch parameters as in Figure 1.15 so that the air content goes from0% to 10% in steps of 2%.4. Specify a batch run in the Run parameters dialog box and initiate the run.13