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Navigation: Modeling Tutorial > Bond Graphs > Standard Elements > Resistance |
  
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A resistance, R, dissipates free energy. This energy of any arbitrary domain is transported irreversibly to the thermal domain. This means the power towards a resistance is always positive. In the table below the effort and flow description of the resistance is shown. Examples of a resistance are a mechanical damper and an electrical resistor.
R-element |
bond graph element |
equation |
effort-in causality |
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f = (1/R) e |
effort-out causality |
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e = R f |
The direction of effort and flow is not restricted for a resistance and there is no preferred form for the equation. In other words: the R-element has a indifferent causality.
