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A particular engineering design problem is to determine the equivalent static load for equipment subjected to base excitation random vibration. The goal is to determine peak response values. The resulting peak values may be used in a quasi-static analysis, or perhaps in a fatigue calculation.

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Mar 29, 2021The Ground Vibration Calculator uses a version of the FTA propagation equation for construction equipment to calculate vibration velocities: PPV structure = PPV measured x (D measured /D structure) n. The safe distances are calculated by algebraically rearranging the FTA equation to get the following algorithm for the log of the minimum safe distance, D min:

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A separate calculation is required for each deck of a multiple deck screen, although the same formula is utilized for each calculation. Screening Area = U = Square Feet: A x B x C x D x E x F x G x H x J: The succession of unknowns that must be established before using the formula is as follows:

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Mar 05, 2020Aiming at the design defects of the existing structure of the linear vibrating screen, the finite element analysis model of the linear vibrating screen was established by Abaqus finite element

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Dec 07, 2018The screen weighs about 93,000 lbs and operates at 800 rpm. Currently I'm interested in how you would approach the design of the small structure to avoid vibration issues due to the screen. My approach has been to model the structure and check for natural frequencies that fall within plus or minus 30% of the operating frequency.

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