Nooniin, E.F., "\il)riilion Moasuromonls on Ship S6-3 

 During; \icoptnnc-c Trials," NKK Ri-porl (iOlO, Juno 1960. 

 (rrc|mriMl for !>NAME, Hull S(ruc-(,ur<"s ConimiUeo), 



Various vibration tfsl instruments are evaluated for probable 

 d.l.iplmn in thf vibration code under development by SNAME. Various 

 opfrating conditions are simultaneously studied for their influence on 

 slandard operating test procedure. 



Noiman, Edward F, and Zaloumis, Angelos, "Shipboard 

 \ iliriiiioii and Noisi^ Considorations in the Desijjn of Rivor 

 Towl>oai<," DTMB Report 1758, July 1963. 





■ of the problem areas which are of 

 chitect in the design of river towboats 

 IS to be considered in the design of 



Paiiagopulo:^, FjP* and Nifkorson, A.M., **PropelIer 

 Shaft Stresses I'ndor Sorvioo Conditions," SNAME, Vol. 62, 

 p.nil), 1954. 



This pHper gives work accomplished under the SNAME, Ships' 

 Mwchinery Committee Project NOS. M-8 and M-U for improving the 

 design oi tailshaft and propeller shaft assemblies. 



Russo, V.L- and McGoldrick, R.T., "Hull Vibration 

 Investigation of SS GOPHER MARINER," SNAME Vol. 63, 

 1955. Also DTMB Report 1060, July 1956. 



This report describes methods for determining Influence coeffi- 

 cients for use with formulas developed at DTMB for computing the 

 critical frequencies of whirling vibration of propeller shafting systems, 

 and tabulates, for purpose of comparison, the computed and experi- 

 mentally determined natural frequencies. 



Tachmindji, A.J. and Dickerson, M.C., "The Measure- 

 ments of Oscillating Pressures in the Vicinity of Propel- 

 lers," DTMB Report 1130, April 1957, 



Results ore given for the oscillating pressures measured at 

 points in the free-stream, both ahead and behind the propellers, and on 

 an imaginary plane parallel to the propeller axis. The effect of rpm, 

 propeller loading, and speed coefficient have been investigated. 

 Results have been obtained for the effect of the number of blades. 

 The oscillating pressure for a 4-bladed propeller has been calculated. 



Tachmindji, A.J. and Dickerson, M.C., "The Measure- 

 ment of Thrust Fluctuations and Free-Space Oscillating 

 Pressures for a Propeller," DTMB Report 1107, January 

 1957. 



Ptilachek, H., "Calculation of Transient Excitation of 

 Ship Hulls by Finite Difference Methods," DTMB Report 

 1120, July l'957. 



A system of finite difference equations based on the nonuniform 

 bti-rtm theorv is presented for use in the calculation of the response of 

 a ship hull to transient forces. The conditions for stability of these 

 equations are derived. The feasibility of the method is tested by the 

 solution of a vibration problem for a specific hull discussed in DTMB 

 Report 1119. 



Prohl. M.A., "A General Melhod for Calculating Critical 

 Spt'od~ of Flexible Rotors," Journal of Applied Mechanics, 

 \ol, 1:2, No. 3, September 1945. 



The actual rotor is simulated by a rotor in which the mass is 

 .oncentrated at several equally spaced stations. The masses are 

 tonsidered to be connected by weightless flexural members. 



This report gives the instrumentation and technique of measure- 

 ment of the thrust fluctuations produced by a propeller when operating 

 in a variable inflow field. It also describes the method of measurement 

 of the oscillating pressure at a point in space in the vicinity of the 

 screw. Representative results are given for a propeller operating in a 

 series of similar wake distributions of varying magnitudes. 



Taskonas, S., et aU, "The Vibratory Force and Moment 

 Produced by a Marine Propeller on a Long Rigid Strip," 

 Stevens Institute of Technology, Davidson Laboratory 

 Report 817, March 1962. 





plate 



The blade-frequency fo 

 of finite width by a propeller of 

 long axis of the plate are found in te; 

 The formulae allow evaluation of the 



noments produced c 

 ating on a shaft pa 

 s of simple algebra 

 fluence of tip cleai 



, long fla 



of blades, thrust loading, adv 



i ratio, and blade thickn 



Rood, F.E. and Bradshaw, R.T., "Ship Hull Vibrations; 

 Tho Distribution of Exciting Forces Generated by Propel- 

 lors" CONESCO Report No, F-101-2, June 1960, 



■sents a practical method of t 

 and the three components of t 

 I effects included. 



Tiputing the three 



Kitt'or, P,D. and Broslin, J. P., "A Theory for the 

 Qua-i-Sioady and L'nsioady Thrust and Torque for a 

 Propclior in a Ship Wake," Slovens Institute of Technology 

 ETT Ropon 6H6, Jul\ 195H. 



Unsieadv aerodynamic theory is applied to problems of varying 

 ■hr>jM and torque experienced by a marine propeller working in a non- 



56 



