Accession Number : ADD018152
Title : Hydrofoil Force Balance.
Descriptive Note : Patent, Filed 20 Jul 94, patented 7 May 96,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Lefehvre, Paul J ; Barker, William P
Report Date : 07 May 1996
Pagination or Media Count : 9
Abstract : The present invention relates to measuring device for measuring a component of a force acting on a test body, such as a hydrofoil, positioned within a testing apparatus. The measuring device has a test body formed by a foil shaped center section and two adjacent end sections. Each end section is joined to the center section by a flexure member having sufficient stiffness so that there is negligible relative motion between the center section and the end sections as a fluid medium flows past the center section. At least one strain gauge is mounted to at least one flexure member to measure the forces acting on the center section. A method for measuring the load on a test body is also described.
Descriptors : *BALANCE, *PATENTS, *HYDROFOILS, TEST AND EVALUATION, STIFFNESS, SHAPE, MOTION, MEASURING INSTRUMENTS, STRAIN GAGES, FOILS(MATERIALS), FLUID FLOW
Subject Categories : Marine Engineering
Distribution Statement : APPROVED FOR PUBLIC RELEASE