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
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE