Gas turbine combustor

A gas turbine combustor comprising:

• a combustor basket in which combustion gas flows, the combustion gas being produced by combustion of fuel injected from at least one nozzle;
• a first resonance device mounted on an outer surface of the combustor basket;
• and
• a second resonance device for damping combustion oscillation of a frequency higher than the first resonance device, the second resonance device being mounted on the outer surface of the combustor basket so as to be disposed on a downstream side from the first resonance device in a flow of the combustion gas,
• wherein the first resonance device and the second resonance device are acoustic liners each having a housing mounted to the outer surface of the combustor basket,
• wherein a resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket, and
• wherein the second resonance device is housed in a space surrounded by an outer surface of a downstream end of the combustor basket and an upstream end of a transition piece for introducing the combustion gas produced in the combustor basket to a turbine, the transition piece being arranged so that the upstream end of the transition piece overlaps an outer periphery of the downstream end of the combustor basket.