Engine exhaust center body with acoustic attenuation

An assembly for a gas turbine engine, comprising:

• an exhaust center body including an inner skin, a perforated outer skin, a first bulkhead, a second bulkhead, a baffle and an acoustic chamber;
• the first bulkhead extending radially between and attached to the inner skin and the perforated outer skin, and the first bulkhead extending circumferentially about an axial centerline of the exhaust center body;
• the second bulkhead extending radially between and attached to the inner skin and the perforated outer skin, and the second bulkhead extending circumferentially about the axial centerline of the exhaust center body;
• the baffle extending radially between the inner skin and the perforated outer skin, the baffle extending axially along the axial centerline between the first bulkhead and the second bulkhead, the baffle attached to the inner skin, the first bulkhead and the second bulkhead, and the baffle comprising a structural panel with a honeycomb core;
• and
• the acoustic chamber formed within the exhaust center body radially between the inner skin and the perforated outer skin, axially between the first bulkhead and the second bulkhead, and circumferentially adjacent the baffle.

An assembly for a gas turbine engine, comprising:

• an exhaust center body including an inner skin, a perforated outer skin, a first bulkhead, a second bulkhead, a baffle and an acoustic chamber;
• the first bulkhead extending radially between and attached to the inner skin and the perforated outer skin, the first bulkhead extending circumferentially about an axial centerline of the exhaust center body, and the first bulkhead comprising a first structural panel with a first cellular core;
• the second bulkhead extending radially between and attached to the inner skin and the perforated outer skin, the second bulkhead extending circumferentially about the axial centerline of the exhaust center body, and the second bulkhead comprising a second structural panel with a second cellular core;
• the baffle extending radially and axially across the acoustic chamber, and the baffle attached to the inner skin, the first bulkhead and the second bulkhead;
• and
• the acoustic chamber formed within the exhaust center body radially between the inner skin and the perforated outer skin, axially between the first bulkhead and the second bulkhead, and circumferentially adjacent the baffle.