THE DEVELOPMENT AND TESTING OF LOW MODULUS FLUTTER MODELS OF A BASE-VENTED STRUT.
HYDRONAUTICS INC LAUREL MD
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A dimensional analysis is made to obtain an insight into the flutter model problem. It was found that the flutter velocity of a strut in water is proportional to the square root of the flexural modulus of elasticity E if GE and rho srho f are kept constant, where G is torsional modulus, rho s the density of strut, and rho f the density of fluid. A low modulus material was developed to be used in making flutter models which can be tested at low speed. The material developed is plastic and tungsten carbide powder mixture which has the desired properties of low modulus and high density. The properties of this modeling material are studied and discussed. The tests performed with the low modulus material modeling steel and aluminum agree well with test results of the prototype. Author
- Marine Engineering
- Test Facilities, Equipment and Methods
- Fluid Mechanics