Dynamic response of machine-foundation systems

A method of analysis is presented for the dynamic response of large machine-foundation systems. The general case of several machines on a common flexible mat is considered. The origin and types of machine exciting forces are discussed. Particular emphasis is given to the unbalanced inertial forces in reciprocating gas compressors. It is with this type of machine that most serious foundation problems occur. The soil is assumed to be homogeneous and isotropic with both inertial and elastic properties. While this simplification is not compatible with the observed properties of most soils, it gives satisfactory results for this application. An outline of a theoretical method of vibration analysis is presented which can be adapted for use with a computer. The method is applied to the general machine-foundation system. An example analysis is made of a single engine driven gas compressor and its foundation. The natural frequencies and amplitudes of motion are calculated. Recommendations are made for the practical application of the analytical procedure based on the present limitations on the accuracy of dynamic soil data.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Engineering

Grantor

Rice University

Year dc:date.issued

1965

Author dc:creator

• Marshall, Donald William

Advisor dc:contributor.advisor

• Holt, E. C.

Statement dc:rights

• Copyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.

Language dc:language.iso

eng

Handle dc:identifier.uri

https://hdl.handle.net/1911/89102

OAI identifier oai:identifier

oai:repository.rice.edu:1911/89102