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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Sychronization of Rotating Mechanical Vibrators in the Prefabrication of Concrete
Author(s): Claus Hanke and Steen Stentsoe
Publication: Journal Proceedings
Appears on pages(s): 1283-1304
Keywords: compacting; fresh concretes; mechanical drives;precast concrete;
prefabrication; vibration (consolidation); vibrators (machinery).
Abstract:In a number of cases large scale vibration of fresh concrete requires that more than one mechanical vibrator is built in the vibrator construction. Detailed theoretical analysis has been done on the self-synchronization mechanisms of two coupled rotating mechanical vibrators of the eccentricity type. The coupling power transferred from one vibrator to the other plays an important role. As a main result /W/*/I has to be as large as possible (M = total mass of vibrator, 2/= distance between the shafts of the vibrator motors, I = dynamic moment of inertia of vibrator). Model experiments are done on two of the cases in the theoretical treatment. Results are in good agreement with theory.
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