CONCLUSIONS AND RECOMMENDATIONS 



1. The steady-state analysis of complicated, multileg, 

 redundant, submerged mooring systems is now 

 possible. 



2. The dynamic analysis of simple mooring systems, 

 such as the single-point mooring and the bi-mooring is 

 now possible. 



3. Precise validation data for the steady-state and 

 dynamic programs are needed to quantify the errors 

 associated with the various techniques and to help 

 select correct hydrodynamic loading criteria and 

 added mass and damping coefficients used in the 

 computer programs. 



4. Analysis and design procedures need to be 

 developed to reliably predict, describe, and suppress 

 strumming in long cables in an ocean environment. 



5. Experimental data are needed to aid in the devel- 

 opment of a reliable tool to predict and describe 

 cable strumming and in the development of practical 

 strumming suppressors. 



REFERENCES 



1. M. J. Casarella and M. Parsons. "Cable systems 

 under hydrodynamic loading," Marine Technology 

 Society Journal, vol. 4, no. 4, July/Aug. 1970, pp. 

 27-44. 



2. Hydrospace-Challenger, Inc. HCI TR 4450 0001: 

 An inventory of current mathematical models of 

 scientific data-gathering moors, by D. B. Dillon. 

 Rockville, Md., Feb. 1973. 



3. Cathodic University of America. Report 73-1: A 

 survey of analytical methods for dynamic simulation 

 of cable-body systems, by Y. I. Choo and M. J. 

 Casarella. Washington, D. C, Mar. 1973. 



4. Naval Research Laboratory. Report 7296: The 

 analysis of internally redundant structural cable 

 arrays, by R. A. Skop and G. J. O'Hara. Washington, 

 D. C, Sep. 1971. 



5. R. A. Skop and G. J. O'Hara. "The method of 

 imaginary reactions — a new technique for analyzing 

 structural cable systems," Marine Technology Society 

 Journal, vol. 4, no. 1, Jan/Feb. 1970, pp. 21-30. 



6. R. A. Skop, "The method of imaginary reactions: 

 applications to N-point moors," Preprints of the 

 Sixth Annual Conference, June/July 1970, vol. 1. 

 Washington, D. C, Marine Technology Society, 1970, 

 pp. 1-22. 



7. Naval Research Laboratory. NRL Report 6894: 

 The static configuration of a tri-moored subsurface, 

 buoy-cable array acted on by current-induced forces, 

 by R. A. Skop and R. E. Kaplan. Washington, D. C, 

 14 May 1969. 



8 NRL Report 7640: A Fortran IV program 



for computing the static deflections of structural 

 arrays, by R. A. Skop and J. Mark. Washington, D. C, 

 Aug. 1973. 



9. Woods Hole Oceanographic Institution. Report 

 WHOI-73-85: Computer simulation of a tripod- 

 mooring for design and prediction, by N. N. Panicker. 

 Woods Hole, Mass., Nov. 1973. 



10. Bell Telephone Laboratories. Technical Report 

 No. 14. The analysis of mooring systems and rigid 

 body dynamics for suspended structures, by J. M. 

 Gormally. Whippany, N. J., Dec. 1966. 



11. Massachusetts Institute of Technology, Instru- 

 mentation Laboratory. Report E-2321: A stress and 

 stability analysis of the pilot project oceanic 

 telescope, by H. F. Little. Cambridge, Mass., Aug. 

 1968. 



12. Naval Underwater Systems Center. Technical 

 Memorandum No. SA2302-323-71 : A finite element 

 model of a submerged line array moored in uniform 

 current fields, by J. D. Wilcox. New London, Conn., 

 July 1971. 



13. J. W. Bendendender. "Three-dimensional 

 boundary value problems for flexible cables," paper 

 presented at Second Annual Offshore Technology 

 Conference, Houston, Tex., April 1970. (OTC Paper 

 No. 1281). 



14. S. Bell, General Electric Co., personal communi- 

 cation: Outline of GE-RESD capability in static and 

 dynamic analysis of mooring systems. Philadelphia, 

 Pa., Jan. 1973. 



15. Woods Hole Oceanographic Institution. Report 

 WIIOI 68-79: Tension and geometry of single point 

 moored surface buoy system, by W. D. Martin. Woods 

 Hole, Mass., Dec. 1968. 



