Toward the integration of lattice structure-based topology optimization and additive manufacturing for the design of turbomachinery components

Abstract

Used in several industrial fields to create innovative designs, topology optimization is a method to design a structure characterized by maximum stiffness properties and reduced weights. By integrating topology optimization with additive layer manufacturing and, at the same time, by using innovative materials such as lattice structures, it is possible to realize complex three-dimensional geometries unthinkable using traditional subtractive techniques. Surprisingly, the extraordinary potential of topology optimization method (especially when coupled with additive manufacturing and lattice structures) has not yet been extensively developed to study rotating machines. Based on the above considerations, the applicability of topology optimization, additive manufacturing, and lattice structures to the fields of turbomachinery and rotordynamics is here explored. Such techniques are applied to a turbine disk to optimize its performance in terms of resonance and mass reduction. The obtained results are quite encouraging since this approach allows improving existing turbomachinery components’ performance when compared with traditional one.

Prototyping and Study of Mesh Turbomachinery Based on the Euler Turbine

“…The kinetic energy of the working fluid flow at the turbine (6) converts into mechanical energy. The turbine ( 6) is connected to the DC generator (7), whose resistance varies using the adjustable resistor (10). Scales (9) and tachometer (8) are provided to measure torque on the generator shaft (7) and its rotation speed.…”

“…The results of practical use of mesh channels are known in the development of lattice wings [3,4], heat exchangers [5][6][7], and ejectors for various purposes [8,9]. The maximum rigidity of the rotor structure is achieved with a minimum rotor mass using modern additive technologies [10][11][12]. Such technologies also made it possible to create complex compositions from metal and ceramic materials, which are difficult to obtain by other methods [13].…”

New concept carrier of front-end module with structural topology optimization for automotive

“…After then, topology optimization was conducted while considering rib conditions, spacing, and mold orientation with an option provided by Optistruct. [18][19][20] Table 2 shows basic information about the topology optimization.…”

Potentiale additiv gefertigter Gitterstrukturen – ein Review

“…In diesem Bereich werden außerdem viele Untersuchungen durchgeführt, die nicht direkt auf eine Anwendung bezogen sind, aber unterschiedliche Gittertypen bzw. neu entwickelte Gitterstrukturen hinsichtlich ihrer Vibrationsdämpfung vergleichen [10][11][12][13][14][15].…”