Location

Arlington, Virginia

Session Start Date

8-11-2008

Session End Date

8-16-2008

Abstract

In the design of machine foundations or other dynamically loaded foundations, successive corrections are used to reach the final physical system. The end product of the design procedure is the determination of a foundation – soil system which satisfactorily supports equipment or machinery. A special situation is that when the manufacturers of the machinery don’t recognize, or are unwilling to acknowledge, the unbalanced forces which are produced by their machine. Another situation, directly related to the above mentioned one, consists of the acquisition of second – hand equipment. This is the situation which has been often encountered in Romania in the last fifteen years due to the poor economical situation of the country and to the appearance of various private companies which could not afford new equipment. The paper presents such a situation, when the owner has acquisitioned a secondhand offset printing press and didn’t know whom to blame for the unsatisfactory performance of his facility, together with the entire process of investigations carried out. The investigation established which part of the facility was responsible for the annoying vibrations, at which speed these vibrations became excessive, and which were the proposed solutions for avoiding the vibration problems.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Sixth Conference

Publisher

Missouri University of Science and Technology

Publication Date

8-11-2008

Document Version

Final Version

Rights

© 2008 Missouri University of Science and Technology, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Case Study of Annoying Vibrations Generated by Unbalanced Forces of an Offset Printing Press

Arlington, Virginia

In the design of machine foundations or other dynamically loaded foundations, successive corrections are used to reach the final physical system. The end product of the design procedure is the determination of a foundation – soil system which satisfactorily supports equipment or machinery. A special situation is that when the manufacturers of the machinery don’t recognize, or are unwilling to acknowledge, the unbalanced forces which are produced by their machine. Another situation, directly related to the above mentioned one, consists of the acquisition of second – hand equipment. This is the situation which has been often encountered in Romania in the last fifteen years due to the poor economical situation of the country and to the appearance of various private companies which could not afford new equipment. The paper presents such a situation, when the owner has acquisitioned a secondhand offset printing press and didn’t know whom to blame for the unsatisfactory performance of his facility, together with the entire process of investigations carried out. The investigation established which part of the facility was responsible for the annoying vibrations, at which speed these vibrations became excessive, and which were the proposed solutions for avoiding the vibration problems.