responses and forces have been made in the Reynolds number range that is directly applicable to cable 

 strumming problems. 



6.2 Recommendations. Though reasonable engineering approximations must be made, the pro- 

 cedures and experimental data base presented in this report are recommended for use in cable system 

 design practice. Procedures are described for predicting a particular system's vulnerability to vortex- 

 excited strumming oscillations. In addition, a reasonable data base from dynamic response and force 

 coefficient measurements is also provided to aid in detailed calculations of the system response, if that 

 is necessary. A number of computer codes also are available to assist the designer and some have been 

 calibrated against both field-scale and laboratory-scale test data. 



7. REFERENCES 



1. T. Sarpkaya, "Vortex-Induced Oscillations, A Selective Review" Transactions of ASME, Journal of 

 Applied Mechanics, Vol. 46, pp. 241-258, 1979. 



2. R. King, "A Review of Vortex Shedding Research and Its Application," Ocean Engineering, Vol. 

 4, pp. 141-171, 1977. 



3. O.M. Griffin, "OTEC Cold Water Pipe Design for Problems Caused by Vortex-Excited Oscilla- 

 tions," Naval Research Laboratory Memorandum Report 4157, March 1980. 



4. O.M. Griffin and G.H. Koopmann, "The Vortex-Excited Lift and Reaction Forces on Resonantly 

 Vibrating Cylinders," Journal of Sound and Vibration, Vol. 54, pp. 435-448, 1977. 



5. R.B. Dean, R.W. Milligan and L.R. Wootton, "An Experimental Study of Flow-Induced Vibra- 

 tion," E.E.C. Report 4, Atkins Research and Development, Epsom (U.K.), 1977. 



6. O.M. Griffin, "Vortex-Excited Cross Flow Vibrations of a Single Cylindrical Tube", Transactions 

 of ASME, Journal of Pressure Vessel Technology, Vol. 102, pp. 158-166, 1980; see also Flow- 

 Induced Vibrations, S.S. Chen and M.D. Bernstein (eds.), ASME: New York, 1-10, 1979. 



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