The equations of motion of a suspended, inextensible cable in
the absence of damping are studied. A method is developed and
illustrated for determining the frequencies and mode shapes for small
oscillations about the equilibrium configuration.
With the introduction of a new variable, the fourth order equation
governing tangential displacement...
Short non-flexible elements of cable were driven harmonically
in water while constrained by springs. The cable elements were observed
to oscillate at approximately the Strouhal vortex shedding
frequency. Damped resonance occurred near the point where the natural
frequency and the Strouhal vertex shedding frequency were equal.
Transverse oscillation amplitudes greater...
The equations of motion of an elastic cable suspended in a
viscous medium from two arbitrary points are derived. These are
then linearized for the undamped, inextensible case, and it is found
that the equations describing the in-plane motion of the cable are
then independent of the equation describing the...
The anchor-last mooring procedure is investigated in order to determine the transient forces in the mooring line and the velocities of the anchor. Transient forces were determined and the results showed that no severe snap loads occurred for the cases investigated. In addition, it was found that the vertical velocity...
The utilization of extra-high-voltage underground power cables
over distances greater than 100 miles presents serious problems relative
to the voltage and current limits of such cables. These problems
are directly associated with the fixed amount of capacitance inherent
in long cable lines. As a result, large charging currents are
characteristic...
Two-way transmission of data on broadband community cable television systems is considered in this thesis. A discussion of the data transmission environment is presented which attempts to characterize the channel noise and interference which degrades data transmission performance. The analysis considers channel degradation resulting from additive gaussian noise and various...
The design and analysis of single point power-mooring cables applied to wave energy converters (WECs) is presented. WECs are mechanical devices designed and deployed to extract energy from waves in varying ways, and at varying distances from the shoreline. WEC devices operating on the water surface require mooring lines or...
Computer oriented techniques and procedures are presented for the analysis of single and multiple cable systems. Application is made to a two-point mooring system influenced by surface and subsurface hydrodynamic loading. The effects of the various parameters are presented and the numerical method is compared to exact solutions obtained from...