caa a22 4500 463243870 CHVBK 20180405153320.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s00158-006-0065-3 doi (NATIONALLICENCE)springer-10.1007/s00158-006-0065-3 Reduction of vibration level in rotordynamics by design optimization [Elektronische Daten] [Frank Strauß, Mizuho Inagaki, Jens Starke] We focus on the reduction of the vibration level of rotors by optimizing the shape of the body. The target is to reduce rotor weight and rotor vibrations leading to higher efficiency and less noise. We consider a finite element discretization of the rotor using a Rayleigh beam model which includes rotary inertia and gyroscopic moments leading to nonself-adjoint systems. We present a general algebraic framework for this case. The mass function is the objective function of the optimization problem and constraints are set on the nonlinear and nonconvex functions of critical speed and unbalanced response. For the numerical solution, algorithms belonging to the class of sequential convex programming are applied for the example of a turbocharger. A remarkable reduction of mass of an initially given prototype could be achieved while significantly reducing the unbalanced response and raising the critical speeds. Springer-Verlag Berlin Heidelberg, 2006 Rotating machinery nationallicence Gyroscopic systems nationallicence Vibration level nationallicence Shape optimization nationallicence Sequential convex programming nationallicence Strauß Frank Institute of Applied Mathematics, University of Heidelberg, Im Neuenheimer Feld 294, D-69120, Heidelberg, Germany aut Inagaki Mizuho Toyota Central R&D Labs., Inc., 480-1192, Nagakute, Aichi, Japan aut Starke Jens Institute of Applied Mathematics, University of Heidelberg, Im Neuenheimer Feld 294, D-69120, Heidelberg, Germany aut Structural and Multidisciplinary Optimization Springer-Verlag 34/2(2007-08-01), 139-149 1615-147X 34:2<139 2007 34 158 https://doi.org/10.1007/s00158-006-0065-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00158-006-0065-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Strauß Frank Institute of Applied Mathematics, University of Heidelberg, Im Neuenheimer Feld 294, D-69120, Heidelberg, Germany aut NATIONALLICENCE 700 1- Inagaki Mizuho Toyota Central R&D Labs., Inc., 480-1192, Nagakute, Aichi, Japan aut NATIONALLICENCE 700 1- Starke Jens Institute of Applied Mathematics, University of Heidelberg, Im Neuenheimer Feld 294, D-69120, Heidelberg, Germany aut NATIONALLICENCE 773 0- Structural and Multidisciplinary Optimization Springer-Verlag 34/2(2007-08-01), 139-149 1615-147X 34:2<139 2007 34 158 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer