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Estimate of Hull-Weight Change with Varying Length-Beam Ratio for Flying Boats

Description: "A study has been made of the variation of seaplane hull weight with length-beam ratio in a systematic series of hulls designed for constant gross weight and similar spray characteristics. It is found that increases in the length-beam ratio bring about small reductions in the hull weight if it is assumed that seaplanes having the same weight and bottom shape will be designed for the same load factor. A short discussion is also given to show the reduction in load factor that may occur with high length-beam ratios" (p. 1).
Date: August 14, 1947
Creator: Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department

Effect of Partial Wing Lift in Seaplane Landing Impact

Description: Note presenting a solution for the motion of a prismatic float of infinite length that is dropped vertically into the water at zero trim. A lift force, simulating seaplane wing lift, is assumed to act on the float and to remain constant during the impact period.
Date: April 1948
Creator: Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department

Shear Flows in Multicell Sandwich Sections

Description: "Solutions are developed for shear flows in multicell sandwich sections for various cell-twist distributions. The problems of twisting and bending of a cantilever beam are first considered. More general cell-twist distributions are then considered, including the arbitrary distribution" (p. 1).
Date: November 1948
Creator: Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department

Impact Theory for Seaplane Landings

Description: Note presenting an analysis of a step landing of a seaplane on smooth water by solving Newton's differential equation of motion. Formulas are developed for the maximum acceleration, the maximum draft, and the draft at the instant of maximum acceleration.
Date: October 1947
Creator: Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department

Matrix Methods for Calculating Cantilever-Beam Deflections

Description: Note presenting the method of numerical integration for calculation of beam deflection in matrix form to give it the advantages which are inherent in an influence-coefficient method. Examples are presented to show that the use of weighted matrices reduces the calculation time required to obtain a desired degree of accuracy.
Date: March 1949
Creator: Benscoter, Stanley U. & Gossard, Myron L.
Partner: UNT Libraries Government Documents Department

Analysis of Straight Multicell Wings on Cal-Tech Analog Computer

Description: Note presenting structural analyses made for four straight multicell wings. Wings with aspect ratios of 2 and 4 with rectangular and biconvex cross sections have been considered. The results indicated that under bending loads, all of the wings show fairly good agreement with beam theory.
Date: January 1954
Creator: Benscoter, Stanley U. & MacNeal, Richard H.
Partner: UNT Libraries Government Documents Department

Equivalent-Plate Theory for a Straight Multicell Wing

Description: "A structural theory is developed for the analysis of thin multicell wings with straight spars and perpendicular ribs. The analysis is intended to be suitable for supersonic wings of low aspect ratio. Deflections due to shearing strains are taken into account" (p. 1).
Date: September 1952
Creator: Benscoter, Stanley U. & MacNeal, Richard H.
Partner: UNT Libraries Government Documents Department

Analysis of Sweptback Wings on Cal-Tech Analog Computer

Description: Note presenting structural analyses made of two 45 degree swept wings of aspect ratio 3. One has a constant depth and the other had a constant biconvex cross section in planes parallel to the air stream. Deflections, all internal forces, and vibration modes have been calculated for concentrated static loads.
Date: January 1954
Creator: MacNeal, Richard H. & Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department

Introduction to Electrical-Circuit Analogies for Beam Analysis

Description: Note presenting an application of the well-known analogy between electrical and mechanical systems to the calculation of stresses and deflections of beams. The main objective of the paper is to give an explanation of the analogies in a basic manner which will enable a structural engineer to understand the process of designing the electrical circuits. Analogies are given for beams in bending and torsion with static loads and in vibrational motion.
Date: September 1952
Creator: Benscoter, Stanley U. & MacNeal, Richard H.
Partner: UNT Libraries Government Documents Department

Analysis of Multicell Delta Wings on Cal-Tech Analog Computer

Description: "The main purpose of this paper is to present the results of measurements made on the Cal-Tech computer. The diagrams present only a small portion of the data which were obtained from the computer and which are given in complete form in the tables" (p. 1-2).
Date: December 1953
Creator: MacNeal, Richard H. & Benscoter, Stanley U.
Partner: UNT Libraries Government Documents Department