A SIX-COMPONENT INTERNAL BALANCE DESIGN FOR SUBMARINE TESTING IN THE NATIONAL RESEARCH COUNCIL 9m X 9m WIND TUNNEL

Authors
  1. Bowker, A.J.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Bowker Consultants, Gloucester ONT (CAN)
Abstract
Considerations leading up to and including the design of a 6-component strain-gage are presented. Balance capacity and size are suitable for testing of submarine models with lengths up to 7.5m in the National Research Council of Canada 9m x 9m wind tunnel. The initial specifications are examined, and shown to imply exceptional resolution requirements. Factors affecting balance performance are reviewed: temperature, strain gage technology, calibration rig and balance geometry choices. An examination of the test environment also shows the need for improvements in support system stiffness and model attitude measurment accuracy. Concentric cylinders joined by load cells acting in parallel is the balance configuration selected for final development. The balance is to be supported by a yoke arrangement at the balance center. Performance of critical components is examined in detail.
Report Number
DREA-CR-92-438 — Contractor Report
Date of publication
01 Jul 1992
Number of Pages
84
DSTKIM No
93-02556
CANDIS No
130235
Format(s):
Hardcopy;Originator's fiche received by DSIS

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