scholarly journals Discussion: “Linear and Nonlinear Analyses of Skewed Plates” (Kennedy, J. B., and Ng, Simon, 1967, ASME J. Appl. Mech., 34, pp. 271–277)

1968 ◽  
Vol 35 (4) ◽  
pp. 840-840
Author(s):  
Robert Schmidt
Keyword(s):  
Nonlinear Analyses ◽  
Linear And Nonlinear ◽  
Skewed Plates

Linear and nonlinear analyses of a wideband gyro-TWT

1989 ◽  
Vol 36 (4) ◽  
pp. 802-810 ◽  
Author(s):  
B.R. Cheo ◽  
A. Rekiouak
Keyword(s):  
Nonlinear Analyses ◽  
Linear And Nonlinear

Analysis of Straight-Line Motion of Towed Ships

1991 ◽  
Vol 35 (04) ◽  
pp. 304-313
Author(s):  
Fotis Andrea Papoulias
Keyword(s):  
Dynamic Response ◽  
Periodic Solutions ◽  
Bifurcation Theory ◽  
Loss Of Stability ◽  
Nonlinear Analyses ◽  
Surface Ship ◽  
Numerical Integrations ◽  
Straight Line ◽  
Linear And Nonlinear ◽  
Dynamic Loss

The problem of dynamic loss of stability in steady towing of a surface ship is considered. The two coordinates of the towing point and the towline length are the main bifurcation parameters. Bifurcation theory techniques are used in order to compute equilibrium and periodic solutions. The results are confirmed by numerical integrations. It is shown that both linear and nonlinear analyses are required to thoroughly understand, predict, and evaluate the system dynamic response.

scholarly journals Linear and Nonlinear Analyses of Skewed Plates

1967 ◽  
Vol 34 (2) ◽  
pp. 271-277 ◽  
Author(s):  
J. B. Kennedy ◽  
Simon Ng
Keyword(s):  
Aspect Ratio ◽  
Large Deflection ◽  
Successive Approximations ◽  
Rectangular Plates ◽  
Aspect Ratios ◽  
Linear And Nonlinear ◽  
Center Deflection ◽  
Skewed Plates ◽  
Skew Angles ◽  
Resultant Stress

The perturbation method is used to analyze small and large-deflection problems of clamped skewed plates under uniform pressure. The results are improved by successive approximations to the three displacement components of a point on the middle plane of the plate. Numerical and graphical results are presented. Comparisons are made with existing results for skewed plates with small deflections as well as with results for rectangular plates with small and large-deflection behavior; good agreement is shown. The effects of skew and aspect ratio on plates with large deflections are investigated. The ratios of maximum center deflection to thickness of plate at which linear and nonlinear theories start deviating significantly from each other are obtained for different aspect ratios and skew angles. It is shown that the center deflection decreases with increase in skew and aspect ratio, and that the maximum resultant stress occurs along the longer edges of the plates and is displaced toward the obtuse corners.

Analysis of the Effective Seismic Support Damping in a Class I Piping System

2008 ◽  
Author(s):  
Nima Zobeiry ◽  
Wolf Reinhardt
Keyword(s):  
Response Spectrum ◽  
Time History ◽  
Class I ◽  
Piping System ◽  
Nonlinear Analyses ◽  
Response Spectrum Analysis ◽  
Specific Support ◽  
The Subject ◽  
Linear And Nonlinear ◽  
The Relationship

Based in the existing literature, it is understood that the supports strongly influence the behaviour of piping during earthquake. Given that the level of seismic dissipation depends on the specific support system, the subject of effective damping provided by seismic supports has not been widely explored. This paper investigates this issue for the feeder pipes of a CANDU® reactor. Feeders are numerous class I pipes in parallel, which are separated by frictional spacer elements. The piping system is analyzed using the time history method, taking into account the different damping mechanisms present. By comparing this and a response spectrum analysis of piping, the effective damping in the system is deduced. The effect of specific parameters on the results and the relationship between linear and nonlinear analyses are discussed.

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