Abstract
A theoretical approach is developed and programmed to analyze the three-dimensional dynamic response of machines on foundations interacting with soil. Structures and soil are coupled by means of a substructure technique. The substructure behaviour of soil is treated for rigid and flexible foundation slabs of arbitrary shape by superposition of semianalytical solutions of viscoelastic halfspace field equations. The interaction between a single turbomachinery frame foundation and soil as well as the interaction through the underlying soil between adjacent block foundations are considered. The assumptions of perfectly smooth and perfectly welded contact at the interface between soil and bases bound the influence of shear stresses. The impact of foundation flexibility with respect to rotor vibrations is discussed. Experimental studies describe the measured sine sweep response and vibration modes of a small scale frame foundation and a rigid circular block foundation on compressed sand.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Aboul-Ella, F.A. & M. Novak,1978. Dynamic analysis of turbine-generator foundations. Presented at the 1978 Fall Convention, Housten, Tex., Oct.
Aboul-Ella, F.A. & M. Novak,1980. Dynamic response of pile-supported frame foundations. Journal of the Engineering Mechanics Division, Proc. ASCE, Vol. 106, No. EM6, Dec., pp. 1215–1232.
Almansi, E., 1907. Un teorema Sulle Deformazioni Elastiche dei Solidi Isotropi, Atti della reale accademia dei nazionale Lincei, Vol. 16, pp. 865–868.
Crandall, S.H., Kurzweil, L.G. & A.K. Nigam,1971. On the measurement of Poisson’s ratio for modelling clay. Experimental Mechanics, 11, pp. 402–407.
Dasgupta, G., 1979. Wellposedness of Substructure Deletion Formulations. Proceedings, Sixteenth Midwestern Mechanics Conference, Vol. 10, Manhattan, Kansas.
Dasgupta, G., 1980. Foundation Impedance Matrices by Substructure Deletion. Journal of the Engineering Mechanics Division, American Society of Civil Engineers, Vol. 106, No. EM3, pp. 517–523.
Dietz, H.,1972. Stahlfundamente für Turbomaschinen. Beratungsstelle für Stahlverwendung, Düsseldorf, Merkblatt 146, 3.
Gasch, R & W. Sarfeld, 1980. Unwuchterzwungene Schwingungen des Systems Lavalläufer-Blockfundament–elastischer Halbraum, VDI-Berichte Nr. 381, pp. 129–138.
Gaul, L., 1977. Dynamische Wechselwirkung eines Fundamentes mit dem viskoelastischen Halbraum. Ing.-Archiv, 46, pp. 401–422.
Gaul, L., 1979. Dynamisches Halbraumverhalten infolge eines schuberregten Fundamentes. ZAMM 59, pp. 180–183.
Gaul, L., 1980. Zur Dynamik der Wechselwirkung von Strukturen mit dem Baugrund. Habil. Univ. Hannover, June.
Gaul, L., 1980a. Dynamics of frame foundations interacting with soil. Journal of Mechanical Design, Vol. 102, pp. 303–310.
Gaul, L. & O. Mahrenholtz, 1981, 1984. Dynamische Wechselwirkung zwischen Maschine, Fundament und Baugrund. Arbeitsbericht zum DFG-Schwerpunktprogramm Betriebsverhalten dynamisch belasteter Maschinen (not published).
Gaul, L. & M. Plenge, 1983. Ein Baugrundmodell für geschichtete Baugründe mit viskoelastischem Stoffverhalten. ZAMM 63, pp. T50 - T53.
Holzlöhner, U., 1969. Schwingungen des elastischen Halbraumes bei Erregung auf einer Rechteckfläche. Ing.-Archiv, 18, pp. 370–379.
Huh, Y., Schmid, G. & M. Ottenstreuer, 1983. Evaluation oiw kinematic interaction of soil-foundation systems by boundary element method. SMIRT 7 Chicago, August, Paper K 814.
Knobloch, W. & Gaul, 1975. Dämpfungs-und Federverhalten elastischer und viskoelastischer Gründungen bei harmonischer Erregung. Kolloq. Viskoelastische Systeme, VDI-GKE, TU Berlin, pp. 412–451.
Krämer, E., 1984. Maschinendynamik. Springer Verlag, Berlin.
Novak, M., 1982. Response of hammer foundations. Proc. soil dynamics and earthquake engineering conference Southampton, July, pp. 783–797.
Ottenstreuer, M., 1982. Frequency dependent dynamic response of footings. Proc. soil dynamics and earthquake engineering conference, Southampton, July, pp. 799–809.
Sarfeld, W. & C. Fröhlich, 1980. Dynamische Wechselwirkung von Gebäuden und Fundamenten auf dem elastisch-isotropen Halbraum, Bauingenieur 55, pp. 419–426.
Thurat, B., 1978. Machine-Fundament-Baugrund. Diss. RWTH-Aachen.
Waas, G., 1972. Linear two-dimensional analysis of soil dynamics problems in semi-infinite layered media. Ph.D. Thesis, University of California, Berkeley.
Dominguez, J., 1978. Dynamic stiffness of rectangular foundations. Dep. of Civ. Eng. MIT R78–20.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1988 Springer-Verlag Wien
About this chapter
Cite this chapter
Gaul, L. (1988). Interaction between a Rotor System and Its Foundation. In: Rieger, N.F. (eds) Rotordynamics 2. International Centre for Mechanical Sciences, vol 297. Springer, Vienna. https://doi.org/10.1007/978-3-7091-2846-6_12
Download citation
DOI: https://doi.org/10.1007/978-3-7091-2846-6_12
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-82091-9
Online ISBN: 978-3-7091-2846-6
eBook Packages: Springer Book Archive