Modified nodal analysis

Understand the Modified nodal analysis relationship used by Equation contract.

Where to find it

Equation contract → equations

How to use it

Compare the terms, signs and units with your intended physical assumptions before choosing model inputs.

Result

Equation: \mathbf C(\mathbf p)\dot{\mathbf x}+\mathbf g(\mathbf x,\mathbf p,\mathbf u,t)=\mathbf 0.

Troubleshooting

The equation describes the model assumptions; it is not a separate editable boundary condition. Check the parent physics page for setup and limitations.