Analysis of Multicell Delta Wings on Cal-Tech Analog Computer PDF Download
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Author: Richard H. MacNeal Publisher: ISBN: Category : Airplanes Languages : en Pages : 786
Book Description
Deflections and all internal forces have been calculated for concentrated static loads. Vibration modes are also presented. The effects of neglecting shearing strains in the ribs and spars and also of assuming the ribs to be rigid have been investigated by modifying the electric circuits to correspond to these simplifications.
Author: Richard H. MacNeal Publisher: ISBN: Category : Airplanes Languages : en Pages : 786
Book Description
Deflections and all internal forces have been calculated for concentrated static loads. Vibration modes are also presented. The effects of neglecting shearing strains in the ribs and spars and also of assuming the ribs to be rigid have been investigated by modifying the electric circuits to correspond to these simplifications.
Author: Stanley U. Benscoter Publisher: ISBN: Category : Electronic analog computers Languages : en Pages : 79
Book Description
Using the Cal-Tech analog computer, structural analyses have been made for four straight multicell wings. Wings with aspect ratios of 2 and 4 and rectangular and biconvex cross sections have been considered. The wings are supported rigidly along two lines at the faces of the fuselage. Concentrated loads are applied at the interesection points of the ribs and spars. The effects of shearing strains in the ribs and spars are included. Deflections and all internal quantities have been recorded as well as vibration modes and frequencies.
Author: Emanuel Schnitzer Publisher: ISBN: Category : Airplanes Languages : en Pages : 652
Book Description
A new class of frequency-selective shock absorbers called band-pass shock absorbers which were conceived as a means of overcoming some of the limitations of conventional shock absorbers is described. These shock absorber designs are introduced, special emphasis being given to their use in landing and taxiing problems of high-speed aircraft. For such aircraft operated on rough land or water runways, conventional oleo struts approach a rigid condition for bum[s with steep slopes and thereby develop and transmit severe shock loads to the aircraft fuselage. The operation of the band-pass shock absorbers in the reduction of loads in certain selected frequency ranges is described. Theoretical equations are derived and solutions are made for several cases for the purpose of comparing the low-pass and conventional shock-absorber actions. The results indicate that the band-pass shock absorbers should alleviate high-frequency or rapidly applied impact loads but should retain the characteristics of conventional oleo struts when taxiing and design landing loads are slowly applied. A number of variations in design are presented for low-pass shock absorbers and reference is made to double-acting band-pass vibration absorbers for other applications.
Author: George W. Zender Publisher: ISBN: Category : Airplanes Languages : en Pages : 6
Book Description
The stresses and deflections of a plastic model of a delta multicell wing are presented and compared with theoretical results obtained by the use of the Cal-Tech analog computer. The comparison indicates that valuable information may be obtained for experimental structural analyses from tests of plastic models.
Author: Richard H. MacNeal
Author: Richard H. MacNeal
Author: United States. National Advisory Committee for Aeronautics
Author: United States. National Advisory Committee for Aeronautics
Author: 
Author: Stanley U. Benscoter
Author: 
Author: Emanuel Schnitzer
Author: George W. Zender
Author: 
Author: