Power Transmission, Transformation, and Conversion

  • Karl A. SeelerEmail author


A “simple machine,” such as a lever, transforms the magnitudes of the forces and velocities at its points of action but does not change the mechanical power, product of force and velocity. Modern machinery both transforms power and converts power from one type to another. Linear graphs of energetic models of machinery include interfaces which both couple and separate the subsystems. The interfaces consist of two branches, one for each subsystem. There is no direct action or flow of the through variable over the interface into the other subsystem. Hybrid systems are systems which contain subsystems of different types. Electric and hydraulic motors, generators, and pumps are hybrid systems. The linear graph method couples similar and dissimilar subsystems using interfaces, which differ only in the equations that describe their effect.


Power Flow Transformer Equation Spur Gear Linear Graph Fluid Coupling 
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Supplementary material

References and Suggested Reading

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Mechanical Engineering DepartmentLafayette CollegeEastonUSA

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