The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2006
Filed:
Sep. 29, 2004
Charles M. Delair, Pomerene, AZ (US);
Russell B. Cline, Tucson, AZ (US);
Christopher P. Owan, Tucson, AZ (US);
Jason M. Bain, Vail, AZ (US);
Shane P. Stilson, Tucson, AZ (US);
Donald E. Croft, Tucson, AZ (US);
Charles M. Delair, Pomerene, AZ (US);
Russell B. Cline, Tucson, AZ (US);
Christopher P. Owan, Tucson, AZ (US);
Jason M. Bain, Vail, AZ (US);
Shane P. Stilson, Tucson, AZ (US);
Donald E. Croft, Tucson, AZ (US);
Raytheon Company, Waltham, MA (US);
Abstract
A dynamic load fixture (DLF) for testing a unit under test (UUT) includes a lateral load system that applies a time-varying lateral load profile to the UUT drive shaft and an encoder that measures its angular rotation. An isolation stage suitably constrains the encoder from rotating about the axis while allowing it to move in other directions in which the application of the lateral force induces motion. The lateral load system includes a load bearing around the drive shaft, an actuator that applies a lateral force to the load bearing, a force sensor for measuring the applied lateral force, and a lateral controller for adjusting a command signal to the actuator to implement a lateral load profile. The DLF may also include a torsion load system that applies a time-varying torsion load profile to the drive shaft.