Murray, R. Michael, Jr., "Calculated Natural Frequen- 

 cies, Normal Modes, and Forced Vibrations of USS SKATE 

 (SSN 578)," DTMB Report 1767, August 1963. 



Nonnal mode shapes and natural frequencies of horizontal, verti- 

 cal, and longitudinal vibration of the hulUpropulsion system were calcu- 

 lated on a digital computer. Longitudinal modes were also analyzed on 

 an electric analog. Forced response of vertical and longitudinal vibra- 

 tions was detennined. The effect of changing the thrust bearing founda- 

 tion stiffness on the longitudinal mode shapes was deteimined. 



Murtha, J. P., "Virtual Mass of Partially Submerged 

 Bodies," Department of Civil Engineering, Carnegie 

 Institute of Technology, 1954. 



Neifert, H.R. and Robinson, J.H., "Further Results 

 from the Society's Investigation of Tailshaft Failures," 

 Trnns SNAME,'l955. 



This paper reports the results of two recent phases of SNAME's 

 continuing investigation of tailshaft failures. As a result of full-scale 

 and model tests, the effectiveness of stress-relief design modifications 

 is evaluated, and the bending stresses in tailshafts under various 

 operating conditions is evaluated. 



Noonan, Christopher J. and Cummings, John T,, 

 "Vibration-Generator Tests on NS SAVANNAH in Deep 

 Water," DTMB Report 1784, December 1963, (Ppprietary 

 to Maritime Administration; distributed only upon their 

 authorization.) 



Vibration-generator tests were made on NS SAVANNAH in deep 

 water while the ship was powered by her emergency propulsion system. 

 Resonant frequencies and mode shapes of the hull for vertical, hori- 

 zontal, and lorsionalvibration were measured. Experimental and 

 calculated results compare reasonably well. Recommendations for 



Noonan, E.F., "Environmental Vibration Testing for 

 Shipboard Equipment," Shock and Vibration Bulletin No. 23, 

 June 1956, 



Noonan, E.F., "Vibration Measurements on Ship S6-2 

 during Builder's Trials," NKF Report 6006, November 

 1959. (Prepared for SNAME, Hull Structures Committee). 



nt facto 

 1 Code. 



conducted under various test con 

 ; to be considered in the developn 



Noonan, E,F., "Vibration Measurements on Ship S6-3 

 during Acceptance Trials," NKF Report 6010, June 

 1960. (Prepared for SNAME, Hull Structures Committee) 



Various vibration test instnim 

 adoption in the Vibration Code under 

 Simultaneously various operating con 

 influence on standard operating test 



are evaluated for possible 

 elopment by the SNAME. 

 jns are studied for their 



Noonan, E.F., "Vibration Measurements on Ship S6-4 

 (luring Builder's Trials," NKF Report 6304, June 1963. 

 (Prepared for SNAME, Hull Structures Committee) 



Block Coeffic 

 Length o. a. 

 Length b. p. 



0.57 



57 2 '-O" 

 541-0' 

 75'-0" 

 42 '-6" 

 30 '~6 " 



iven for a single screw cargo 



as follows: 



Tonnage Dead Wl. 12.700 tons 

 Tonnage Gross 11,310 tons 

 Tonnage Net 6,809 tons 



Max. Disp. 20,110 tons 



Noonan, Edward F. and Zaloumis, Angelos, "Shipboard 

 Vibration and Noise Considerations in the Design of River 

 Towboals," DTMB Report 1758, July 1963. 



Many problems of vibration and 

 those which are of partic 

 reviewed. The paper is 

 builder, or operator and 

 be drawn during design E 





ise aboard ship are identified, and 

 in the design of river towboats are 

 marily to the naval architect, ship- 

 3e areas to which attention should 

 rnt. 



Ormondroyd, J., et al., "Dynamics of a Ship's Structure, 

 Project M670-4, Contract N5ori-116, Engineering Research 

 Institute, University of Michigan, June 1951. 



Theory of ship vibration. 



Paladino, Anthony R., "Vibration-Generator Tests of 

 Propulsion-System Elements on the USS TIMMERMAN 

 (EAG-152)," DTMB Report 1016, March 1956. 



Vibration-generator tests were made on the port reduction gear 

 unit, the starboard planetary gear unit, and the high speed shaft. 

 Additional frequency and amplitude data were obtained for use in a 

 general study of propulsion units. 



Paladino, Anthony R., "Vibration-Generator Tests of 

 the Propulsion-System Reduction-Gear Units on the USS 

 FORREST SHERMAN (DD 931)," DTMB Report 1028, 

 April 1956. 



Vibration-generator tests were made on the starboard and port 

 reduction gear units with the line shafting uncoupled. The longitudinal 

 spring constants of the foundations are computed to be 2.9 x 10 lb/in. 

 and 1.6 X 10 lb/ in. Additional frequency and amplitude data were 



obtained on these units for use in a general study of propulsion units 



and their foundations. 



Paladino, A.R., ''Vibration Survey on USS DECATUR 

 (DD 936)," DTMD Report 1271, March 1960» 



t and underway vibration survey were 



A vibration-generator 

 performed. During the forme 

 hull, and rudder. Underway, measurements were m 

 system as well. A serious vibration of the ship's 

 experienced, but corrected by changing the rudder 



sde of the propuls 



Palmer, F.W., Jr., "Motions of a Converted T-2 Tanker, 

 USS MISSION CAPISTRANO (TAG 162)/' DTMB Report 

 1790, December 1963. 



tion of the ship 

 an unmodified T-2 



Panagopulos, E.P., "Design-Stage Calculations of 

 Torsional, ,\xial, and Lateral Vibrations of Marine Shaft- 

 ing," Trans SNAME, Vol. 58, 1950. 





This 



report 



presi 



snts the resul 



se 



as by 1 



a T-2 1 



lankei 



r modified by 





■ucture 



to pre 



ivide 



a large vertic 



in 



a stati 



istical 



manr 



ler. Compari! 



Ta 



inker. 









The purpose of this paper 

 enable the designer to investigat 

 lateral vibration effects on marin 

 speeds while the installation is ; 



enough information to 

 al, longitudinal, and 



1 the designing ; 



68 



