A STUDY OF THE HYDRODYNAMIC LOADS ON A CYLINDRICAL MAST AND RADOME
Research and development rept.
DAVID TAYLOR MODEL BASIN WASHINGTON DC HYDROMECHANICS LAB
Pagination or Media Count:
The predominant forces on a mast projecting from a submerged submarine through the surface are steady drag, periodic lift, and wave impact. As the natural frequency of vibration of the mast-radome configuration under consideration is in the vicinity of the vortex shedding frequency, a catastrophic instability should be expected. Since the function of the radome at the top of the mast is to protect the encapsulated instruments, any large deflection of the dome could endanger the contents. The forces on the dome due to drag and breaking waves are estimated for particular operating conditions, numerical values being presented in tabular form for the force distribution over the dome. Also given is the frequency of occurrence of the significant wave for these conditions. The impact force prevails over all others and represents the major obstacle to successful operation of the system in high seas. Pertinent criteria are established to serve as guidelines for the design of the system.
- Submarine Engineering
- Fluid Mechanics