  This paper describes the project GivEn that develops a novel multicriteria
optimization process for gas turbine blades and vanes using modern "adjoint"
shape optimization algorithms. Given the many start and shut-down processes of
gas power plants in volatile energy grids, besides optimizing gas turbine
geometries for efficiency, the durability understood as minimization of the
probability of failure is a design objective of increasing importance. We also
describe the underlying coupling structure of the multiphysical simulations and
use modern, gradient based multicriteria optimization procedures to enhance the
exploration of Pareto-optimal solutions.
