Selected problems relating to the dynamics of block-type foundations for machines

Marek Zombroń 1  ,  
Wrocław University of Technology
Mining Science 2014;21:95–104
Atypical but real practical problems relating to the dynamics of block-type foundations for machines are considered using the deterministic approach and assuming that the determined parameters are random variables. A foundation model in the form of an undeformable solid on which another undeformable solid modelling a machine is mounted via viscoelastic constraints was adopted. The dynamic load was defined by a harmonically varying signal and by a series of short duration signals. The vibration of the system was investigated for the case when stratified ground (groundwater) occurred within the side backfill was present. Calculation results illustrating the theoretical analyses are presented.
Marek Zombroń   
Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland; 664-432-898
1. BRAJA M. DAS, 1984, Fundamentals of soil Dynamics, Elsevier.
2. BRYJA D., ŚNIADY P., 1991. Spatially coupled vibrations of a suspension bridge under random high-way traffic, Earthq. Engng. and Struct. Dyn., 20.
3. CHLANG Y. C., CHAE Y. S., 1972. Dynamic properties of cement – treated soils, Highw. Res. Rec. 379, s. 39 – 51.
4. GAZETAS G., 1983. Analysis of machine foundation vibrations: state of the art., Soil Dynamics and Earthquake Engineering, Vol. 2, No. 1, s. 1 – 42.
5. KLASZTORNY M., LANGER J., MIRONOWICZ W., 1978. Analiza dynamiczna fundamentów blokowych pod maszyny nieudarowe, Politechnika Wrocławska Seria monografie, Wrocław.
6. LIPIŃSKI J., 1980. Fundamenty i konstrukcje wsporcze pod maszyny, Arkady, Warszawa.
7. MAJOR A., 1962. Vibration analysis and design of foundations for machines and turbines. Dynamical problems in civil engineering. Collet’s Holdings Limited, London, Akademiai Kiadó, Budapest.
8. MIRONOWICZ W., 1991. O uszkodzeniach odkształcalnych fundamentów pod maszyny, Sympozjum „Badanie przyczyn i zapobieganie awariom konstrukcji budowlanych”, Świnoujście, s. 397-404.
9. NOVAK M., 198 State of the art in machine foundation analisis, International Symposium “Founda-tions for machines with dynamic loads” Papers and Reports, Section I-II, Leningrad, s. 231-242.
10. SIVA REDDY A., SRINIVASAN R.J., NAMBIAR P.N., 1970. Influence of ground water of the dynam-ic characteristics of footing on sand, Journal of Institution of Engineers, 50, 7.
11. STEVENS H. W., 1975. The response of frozen soils to vibratory loads, Cold Reg. Res. Engng. Lab. Rep. 265, s. 103.
12. THOMSON W. T., CALKINS T., CARAVANI P., 1974. A numerical study of damping, Earthq. Engng. and Struct. Dyn., 3.
13. TSCHEBOTARIOFF G.,P., 1964. Vibration controlled by chemical grouting, Civil Engineering ASCE, May.
14. VELETSOS A. S., VENTURA C. E., 1986. Model analysis of non – classically damped linear systems, Earthq. Engng. and Struct. Dyn.,.
15. WARBURTON G. B., SONI S. R., 1977. Errors in response calculations for non – classically damped structures, Earthq. Engng. and Struct. Dyn., 5.
16. WOLF J.P., 1975. Foundation vibration analysis using simple physical models, Prentice-Hall, NJ.
Skopiuj link
Zapisz się do Newslettera