Magnetic actuators in relays, solenoids, and valve positioners and electrostatic loudspeakers and microphones store electrical and mechanical energy and are inherently nonlinear. They are harder to understand than transformer or gyrator transducers such as hydraulic pistons or voice coil drives whic
Bond graph models for electromagnetic actuators
โ Scribed by Dean Karnopp
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 500 KB
- Volume
- 319
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
โฆ Synopsis
Rotary and linear electromechanical actuators are often used as the effecters for controlled systems and they often are important contributors to the dynamic response of the complete system. A generalized bond graph model for such actuators is developed which represents the three major types of forces or torques generated when coils, low reluctance elements and permanent magnets interact. A wide variety of actuators can be modeled by versions of the basic bond graph which is simpltjiable when some effects are negligible. The bond graph aids
in understanding algebraic manipulations necessary to put the constitutive laws into forms compatible with other elements of the system for simulation or analysis.
๐ SIMILAR VOLUMES
Pure circuit models of transducers have been used for many years with varying degrees of success. However, pure circuit models impose restrictions not all of which are predicated on laws of physics. These restrictions can produce transducer models which are nonphysical. Bond graph models ofSeer an a
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In this paper, the pole assignment problem is considered for linear systems modelled by bond graphs. A procedure for the .fbrmal determination of the controllability matrix is proposed. This matrix is used to transform the state and control matrices into a controllability,form. It allows us to j&mal