Question

I tried to solve this problem by using Simulink:

Here was my attempt using the state-space block in Simulink:

Unfortunately, I got this error:

please help me. this is pretty urgent!

Symbol Ks Value 9015 Suspension parameters spring stiffness coefficient damping coefficient tire stiffness coefficient Sprung mass Un-sprung mass Unit N/m Ns/m2031 N/m Kg Kg 41815 295 39 Lul ANALYTICAL SOLUTION (STATE SPACE MODEL) FOR LINEAR SUSPENSION SYSTEM dx1 dx2 dx3 Ks/ Ms Ks/ Ms Y=Cx + Du x4 Function Block Parameters: State-Space1 State Space State-space model: dx/dt Ax Bu Parameters A: [00 1 0:000 1;-31 231-77;231 1303 7 52] B: [0:0:0;41815] C: [100 0] D: Initial conditions: 0 Absolute tolerance: auto State Name: (e.g., 'position') Apply OK Cancel Help Diagnostic Viewer asearch untitled Simulation 2 11:19:28 PM May 9, 2019 Elapsed: 1:50 min Simulation 2 11:28:48 PM May 9, 2019 Elapsed: 1 sec Parameter 'D' in block 'untitled/State-Space' is incorrect The dimensions of D matrix are not consistent with B and C matrices. The number of columns in D matrix of a state-space system must be same as the number of columns in B matrix. Also, the number of rows in D matrix must be same as the number of rows in C matrix Component: Simulink Category: Block error X Parameter 'ים în block tuntitled/State-spa cel, is incorrect The dimensions of D matrix are not consistent with B and C matrices. The number of columns in D matrix of a state-space system must be same as the number of columns in B matrix. Also, the number of rows in D matrix must be same as the number of rows in C matrix. Component: Simulink | Category: Block error

Answer 1

Please use following settings

untitled2" . Simulink Block Parameters: State-Space State Space State-space model File Edit View Display Diagram Simulation Analysis Code Tools Help dx/dt - Ax Bu untitled Parameters A: 0 0 10:0001:-31 231 -77:231 1303 7 52 Quickly insert blocks by clicking in the diagram and typing part of the block name [0:0:0,41815] C: y Cx+Du State-Space 1000 Initial conditions: 0 Absolute tolerance: auto State Name: (e.g., 'position') 100% Ready Cancel Help OK Apply

Block Parameters: State-Space State Space State-space model: dx/dt - Ax + Bu y=Cx + Du Parameters А, [00 1 00 00 1;-31 231 -7 7;231 1303 7 52] [0:0:0:41815] C: [10 0 0] D: to] Initial conditions: Absolute tolerance auto State Name: (e.g., 'position') Cancel Help Apply OK

Just specify D field as [0], because D matrix is zero in the quextion

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