MATLAB SIMSCAPE 3 Operation & User’s Manual

Best Practices “Grounding Rules” on page 1-35 “Example of Using a Parasitic Resistance to Avoid Numerical Simulation Issues” on page 1-39 Editing Mode “Example of Saving a Model in Restricted Mode” on page 5-12 “Simulating and Fine-Tuning a Model in Restricted Mode” on page 5-14 “Adding and Deleting Simulink Blocks in Restricted Mode” on page 5-17 “Performing an Operation Disallowed in Restricted Mode” on page 5-19 A-2 ...

For more information about Simulink linearization, see “Linearizing Models” in the Simulink documentation. Note If your model has continuous states, use linmod. (Continuous states are the Simscape default.) If your model has mixed continuous and discrete states, or purely discrete states, use dlinmod. Linearizing a model with the local solver enabled (in the Solver Configuration block) is not supported. Linearizing with Default State and Input. You can call linmod without specifying state or input. Enter linmod('modelname') at the command line. With this form o ...

Also note that Simulation time is specified to be between 0 and 10 seconds. You can adjust this setting later, if needed. Click OK to close the Configuration Parameters dialog box. 2 Save the model. Running the Simulation After you’ve put together a block diagram and specified the initial settings for your model, you can run the simulation. 1 The input signal for the force is provided by the Signal Builder block. The signal profile is shown in the illustration below. It starts with a value of 0, then at 4 seconds there is a step change to 1, and then it changes ba ...

Physical Unit Abbreviations Defined by Default in the Simscape Unit Registry (Continued) Quantity Abbreviation Unit Length m cm mm km um in ft mi yd Meter Centimeter Millimeter Kilometer Micrometer Inch Foot Mile Yard Magnetic flux Wb Weber Magnetic flux density T G Tesla Gauss Mass kg g mg lbm oz slug Kilogram Gram Milligram Pound mass Ounce Slug Pressure Pa bar atm psi Pascal Bar Atmosphere Pound/inch^2 Power W HP Watt Horsepower 4-6 ...

Using the Physical Signal Ports The following rules apply to Physical Signal ports: • You can connect Physical Signal ports to other Physical Signal ports with regular connection lines, similar to Simulink signal connections. These connection lines carry physical signals between Simscape blocks. • You can connect Physical Signal ports to Simulink ports through special converter blocks. Use the Simulink-PS Converter block to connect Simulink outports to Physical Signal inports. Use the PS-Simulink Converter block to connect Physical Signal outports to Simulink in ...

New models are always created in Full mode. You can then either save the model in Full mode, or switch to Restricted mode and save the model in Restricted mode. 5-5 ...

3 Select the desired option from the Explicit solver used in model containing Physical Networks blocks drop-down list: • warning — Makes the system issue a warning upon simulation if the model uses an explicit solver. This is the default option, designed to alert you to a potential issue if you use the default solver. • error — Makes the system issue an error upon simulation if the model uses an explicit solver. If your model is stiff, and the use of explicit solvers undesirable, you may choose to select this option to avoid troubleshooting errors in the future. � ...