Enhanced hour-glass transducer
AssigneeRaytheon Company
InventorsPatrick M. Brogan, Daniel Brogan, John C. Cochran
Life of this patent
Estimating the term…
Abstract
An hourglass transducer including a longitudinal driver, a shell, and a pair of endcaps is provided. The driver drives the transducer. The pair of endcaps is attached to ends of the driver and cap the shell enclosing the transducer. The shell includes a first shell end, a second shell end, and a pleated geometry. The first shell end and second shell end are structured with circular cross sections. The pleated geometry is between the first shell end and the second shell end. A perimeter of the pleated geometry is the same as perimeters of the circular cross sections of the first shell end and the second shell end.
Claims20
A shell for a transducer comprising:
- a first shell end and a second shell end structured with circular cross-sections perpendicular to a main axis of the shell;
- and
- a pleated geometry between the first shell end and the second shell end, wherein a length of a perimeter of a cross-section of the pleated geometry perpendicular to the main axis of the shell is the same as a length of a perimeter of the circular cross-section of the first shell end and a length of a perimeter of the circular cross-section of the second shell end;
- wherein the shell is formed of a composite material with fibers arranged with a dominant orientation in an axial direction.
A shell for a transducer comprising:
- a first shell end and a second shell end structured with circular cross-sections;
- and
- a pleated geometry between the first shell end and the second shell end, wherein a length of a perimeter of the pleated geometry is the same as a length of a perimeter of the circular cross-section of the first shell end and a length of a perimeter of the circular cross-section of the second shell end;
- wherein a longitudinal cross-sectional shape of the pleated geometry is shaped as a catenary or as a portion of a circular arc in a profile of the pleated geometry;
- wherein the catenary or the portion of the circular arc is optimized based on a gamma value;
- and
- wherein the gamma value is a ratio of transverse displacement of a diameter at a center plane compared to an axial displacement of the first shell end.
An hourglass transducer comprising:
- a longitudinal driver configured to drive the hourglass transducer;
- a shell for the hourglass transducer, the shell comprising:
- a first shell end and a second shell end structured with circular cross-sections perpendicular to a main axis of the shell;
- and
- a pleated geometry between the first shell end and the second shell end, wherein a length of a perimeter of a cross-section of the pleated geometry perpendicular to the main axis of the shell is the same as a length of a perimeter of the circular cross-section of the first shell end and a length of a perimeter of the circular cross-section of the second shell end;
- and
- a pair of endcaps attached to ends of the longitudinal driver and configured to cap the shell enclosing the hourglass transducer;
- wherein the shell is formed of a composite material with fibers arranged with a dominant orientation in an axial direction.
An hourglass transducer comprising:
- a longitudinal driver configured to drive the hourglass transducer;
- a shell for the hourglass transducer, the shell comprising:
- a first shell end and a second shell end structured with circular cross-sections;
- and
- a pleated geometry between the first shell end and the second shell end, wherein a length of a perimeter of the pleated geometry is the same as a length of a perimeter of the circular cross-section of the first shell end and a length of a perimeter of the circular cross-section of the second shell end;
- and
- a pair of endcaps attached to ends of the longitudinal driver and configured to cap the shell enclosing the hourglass transducer;
- wherein a longitudinal cross-sectional shape of the pleated geometry is shaped as a catenary or as a portion of a circular arc in a profile of the pleated geometry;
- wherein the catenary or the portion of the circular arc is optimized based on a gamma value;
- and
- wherein the gamma value is a ratio of transverse displacement of a diameter at a center plane compared to an axial displacement of the first shell end.
Dependencies are inferred from the claim text.