Abstract: A computer-implemented method for simulating particle impacts in a gas path of an aircraft engine, the method including i) providing a structural-mechanical model of at least one section of the gas path, the model including structurally or mechanically modeled airfoils, ii) placing a particle at a position in the gas path of the model, iii) moving the particle with a velocity vector that was previously determined in a computational fluid dynamics (CFD) simulation in a CFD model of the at least one section of the gas path for a fluid flowing through the gas path, and iv) detecting an impact when the moving particle hits a component of the structural-mechanical model.

Abstract: A method for developing a production process where a component is built up layer by layer by melting on powder material using a radiation source, and the melted-on powder material is subsequently solidified; in a first phase of the method, material-specific properties of a material being ascertained as a function of process parameters in a multiscale, physically based simulation chain independently of a component geometry; and, in a second phase of the method, taking into account the process parameters and the material-specific properties, an additive build-up of the component using this material being simulated which ensures minimal distortions and internal stresses. Also described is an installation for the generative production of components that includes a processing unit that is adapted for implementing a method for developing a production process.

Abstract: A method for developing a production process where a component is built up layer by layer by melting on powder material using a radiation source, and the melted-on powder material is subsequently solidified; in a first phase of the method, material-specific properties of a material being ascertained as a function of process parameters in a multiscale, physically based simulation chain independently of a component geometry; and, in a second phase of the method, taking into account the process parameters and the material-specific properties, an additive build-up of the component using this material being simulated which ensures minimal distortions and internal stresses. Also described is an installation for the generative production of components that includes a processing unit that is adapted for implementing a method for developing a production process.

Abstract: The invention relates to a cylinder sleeve (2) for lining the cylindrical wall of a cylinder (A1) of an internal combustion engine. The inventive sleeve (2) comprises an inner wall (3) which is intended to guide a piston in translation and an outer wall (4) which is intended to rest on the cylindrical wall of the cylinder. The outer wall (4) of the sleeve of the cylinder (2) comprises an upper part (6) which is flared toward a top edge (5) of the sleeve (2), which is defined between the inner (3) and outer (4) walls of the cylinder sleeve. The invention also relates to a cylinder block of an internal combustion engine, comprising at least two cylinders (A1, B1) which are each equipped with one such cylinder sleeve.

Abstract: The invention relates to a cylinder sleeve (2) for lining the cylindrical wall of a cylinder (A1) of an internal combustion engine. The inventive sleeve (2) comprises an inner wall (3) which is intended to guide a piston in translation and an outer wall (4) which is intended to rest on the cylindrical wall of the cylinder. The outer wall (4) of the sleeve of the cylinder (2) comprises an upper part (6) which is flared toward a top edge (5) of the sleeve (2), which is defined between the inner (3) and outer (4) walls of the cylinder sleeve. The invention also relates to a cylinder block of an internal combustion engine, comprising at least two cylinders (A1, B1) which are each equipped with one such cylinder sleeve.