Exhaust nozzle assembly for aircraft propulsion system

A structure for an aircraft propulsion system, comprising:

• an exhaust nozzle including a nozzle wall and a chevron ring;
• the nozzle wall extending axially along an axis from an upstream end of the nozzle wall to a downstream end of the nozzle wall, the nozzle wall extending circumferentially around the axis, the nozzle wall including an inner skin, an outer skin and a cellular core that is radially between and bonded to the inner skin and the outer skin, and the inner skin forming an outer peripheral boundary of a propulsion system flowpath axially along and radially within the nozzle wall;
• and
• the chevron ring forming a downstream trailing edge of the exhaust nozzle, the chevron ring attached to the nozzle wall at the downstream end of the nozzle wall to form another outer peripheral boundary of the propulsion system flowpath axially along and radially within the chevron ring, an upstream end portion of the chevron ring abutted axially against the cellular core, and the inner skin and the outer skin each axially overlapping and radially engaging the upstream end portion of the chevron ring.

A method for manufacturing an exhaust nozzle for an aircraft propulsion system, the method comprising:

• spot welding an upstream end portion of a chevron ring to a cellular core;
• arranging the cellular core and the upstream end portion of the chevron ring radially between an inner skin and an outer skin;
• and
• bonding the inner skin and the outer skin to the cellular core and the upstream end portion of the chevron ring to form the chevron ring integrally with a nozzle wall, wherein the nozzle wall extends axially along an axis from an upstream end of the nozzle wall to a downstream end of the nozzle wall, the nozzle wall extends circumferentially around the axis, the chevron ring forms a downstream trailing edge of the exhaust nozzle, and the chevron ring projects axially out from the downstream end of the nozzle wall to the downstream trailing edge of the exhaust nozzle.