Questions of energy transformation in dc electromagnetic mechanisms. [Electromagnetic energy to energy of mechanical vibrations]
Electromagnetic reciprocal-motion transducers (EMT) are being used ever more extensively in modern industry. In particular, rubble to break down bulkiness, slicer drives for coal combines, drilling equipment, etc. are produced on the basis of EMT. This paper is devoted to further refinement of energy conversion questions and their analysis. The energy coming from the supply source in the magnetization of the additionally sucked-in armature volume is determined by the magnetic energy density in the armature section at the pole level. A general expression is deduced for the electromagnetic force of the EMT that sets up the interrelation between the whole system magnetic energy and the coil flux-linkage. It is shown that expressions known earlier for the electromagnetic forces, obtained for the constant current electromagnet and the constant flux-linkage cases, are particular cases of the general expression that is valid without any additional constraints for the condition of the EMT working process.
- Research Organization:
- Institute of Mining, Siberian Branch, Novosibirsk
- OSTI ID:
- 5604529
- Journal Information:
- Sov. Min. Sci. (Engl. Transl.); (United States), Vol. 21:4
- Country of Publication:
- United States
- Language:
- English
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ELECTRICAL EQUIPMENT
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ENERGY EFFICIENCY
MINING EQUIPMENT
UNDERGROUND MINING
MECHANICAL VIBRATIONS
ARMATURES
CALCULATION METHODS
DIRECT CURRENT
ENERGY DENSITY
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