Abstract: A measurement device for a ring-shaped assembly that measures relative positions, is provided with: a first contact section that comes into contact with a reference surface that is continuous in the circumferential direction of the ring-shaped member and is capable of sliding in the circumferential direction; a second contact section capable of pressing against an opposing surface that faces an opposite side in the radial direction from the reference surface of the ring-shaped member; a base section that supports the first contact section and the second contact section; a third contact section that comes into contact with a measurement-target part of the assembled member; a connecting section that connects the third contact section and the base section; and a measurement unit that measures a displacement of the third contact section relative to the base section.

Abstract: A clearance measurement device for a combustor includes: a rod part with the hollow base end side which is mounted on a first flange of the combustor while being inserted in the combustor; a support part which is mounted at the leading end of the rod part so as to be rotatable around an axis perpendicular to the axial direction of the rod part; an imaging element which is supported by the support part and images an annular clearance; an operation lever which penetrates the inside of the rod part and extends toward the support part; and a link mechanism which is provided between the operation lever and the support part and converts a forward/backward motion of the operation lever into a rotary motion of the support part around the axis.

Abstract: A measurement device for a ring-shaped assembly that measures relative positions, is provided with: a first contact section that comes into contact with a reference surface that is continuous in the circumferential direction of the ring-shaped member and is capable of sliding in the circumferential direction; a second contact section capable of pressing against an opposing surface that faces an opposite side in the radial direction from the reference surface of the ring-shaped member; a base section that supports the first contact section and the second contact section; a third contact section that comes into contact with a measurement-target part of the assembled member; a connecting section that connects the third contact section and the base section; and a measurement unit that measures a displacement of the third contact section relative to the base section.

Abstract: A clearance measurement device for a combustor includes: a rod part with the hollow base end side which is mounted on a first flange of the combustor while being inserted in the combustor; a support part which is mounted at the leading end of the rod part so as to be rotatable around an axis perpendicular to the axial direction of the rod part; an imaging element which is supported by the support part and images an annular clearance; an operation lever which penetrates the inside of the rod part and extends toward the support part; and a link mechanism which is provided between the operation lever and the support part and converts a forward/backward motion of the operation lever into a rotary motion of the support part around the axis.

Abstract: In order to provide a turbine blade fatigue life evaluating method for quantitively evaluating the fatigue life of a turbine blade, the turbine blade is determined to be within its fatigue life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0.5% of an initial length, and is determined to exceed its fatigue life if the creep elongation strain is 0.5% or more than the initial length. A turbine blade creep elongation strain measuring apparatus 20 comprises a first fixed end 21, a second fixed end 22, and a dial gauge 24. A dimension in the longitudinal direction is stamped on the surface of a turbine blade.

Abstract: In order to provide a turbine blade fatigue life evaluating method for quantitively evaluating the fatigue life of a turbine blade, the turbine blade is determined to be within its fatigue life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0.5% of an initial length, and is determined to exceed its fatigue life if the creep elongation strain is 0.5% or more than the initial length. A turbine blade creep elongation strain measuring apparatus 20 comprises a first fixed end 21, a second fixed end 22, and a dial gauge 24. A dimension in the longitudinal direction is stamped on the surface of a turbine blade.

Abstract: In order to provide a turbine blade creep life evaluating method for quantitively evaluating the life of a turbine blade, the turbine blade is determined to be within its allowable life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0.5% of an initial length, and is determined to exceed its allowable life if the creep elongation strain is 0.5% or more than the initial length. A turbine blade creep elongation strain measuring apparatus 20 comprises a first fixed end 21, a second fixed end 22, and a dial gauge 24. A dimension in the longitudinal direction is stamped on the surface of a turbine blade.

Abstract: In order to provide a turbine blade fatigue life evaluating method for quantitively evaluating the fatigue life of a turbine blade, the turbine blade is determined to be within its fatigue life if the creep elongation strain in the longitudinal direction of the turbine blade is less than 0.5% of an initial length, and is determined to exceed its fatigue life if the creep elongation strain is 0.5% or more than the initial length. A turbine blade creep elongation strain measuring apparatus 20 comprises a first fixed end 21, a second fixed end 22, and a dial gauge 24. A dimension in the longitudinal direction is stamped on the surface of a turbine blade.