Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Christian U. Waldherr"'
Publikováno v:
Vibration Engineering for a Sustainable Future ISBN: 9783030481520
Reliable and detailed experimental data regarding the modal properties of rotor blisks is crucial for the development and improvement of reduced order finite element models. In this paper, experimental modal analyses are presented for an axial compre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::864ab804e3ea39028b0921a293e320b6
https://doi.org/10.1007/978-3-030-48153-7_48
https://doi.org/10.1007/978-3-030-48153-7_48
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 142
The mistuning problem of quasi-periodic structures has been the subject of numerous scientific investigations for more than 50 years. Researchers developed reduced-order models to reduce the computational costs of mistuning investigations including f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44ee6f1529795f75e0bb00b4d3975657
https://doi.org/10.1115/1.4045517
https://doi.org/10.1115/1.4045517
Publikováno v:
Volume 7A: Structures and Dynamics.
Low engine order (LEO) excitation in a turbomachine stage can be induced by non-uniform inflow conditions, manufacturing tolerances or in-service wear. LEOs are known to excite significant forced response vibration amplitudes that can easily cause Hi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c973e46af24fab5e7a376b05c30ad1f
https://doi.org/10.1115/gt2019-90366
https://doi.org/10.1115/gt2019-90366
Autor:
Damian M. Vogt, Christian U. Waldherr
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 141
In the structural dynamics design process of turbomachines, Coriolis effects are usually neglected. This assumption holds true if no pronounced interaction between the shaft and disk occurs or if the radial blade displacements are negligible. For cla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9782c478fb2d6ed28f6e5529abcb7309
https://doi.org/10.1115/1.4041117
https://doi.org/10.1115/1.4041117
Publikováno v:
Journal of Engineering for Gas Turbines and Power. 141
Resonant response of turbomachinery blades can lead to high cycle fatigue (HCF) if the vibration amplitudes are excessive. Accurate and reliable simulations of the forced response phenomenon require detailed CFD and FE models that may consume immense
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aff8c11e0859f3b77f4afb3aa9ec6242
https://doi.org/10.1115/1.4040856
https://doi.org/10.1115/1.4040856
Autor:
Christian U. Waldherr, Damian M. Vogt
Publikováno v:
Volume 2: Structures and Dynamics; Renewable Energy (Solar, Wind); Inlets and Exhausts; Emerging Technologies (Hybrid Electric Propulsion, UAV, ...); GT Operation and Maintenance; Materials and Manufacturing (Including Coatings, Composites, CMCs, Additive Manufacturing); Analytics and Digital Solutions for Gas Turbines/Rotating Machinery.
Slight variances in the manufacturing of rotating machinery can lead to significant changes in the structural dynamic behavior compared to the behavior of ideal cyclic periodic structures. Therefore it is necessary to consider deviations from the per
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::114176330e9459caba6d0e27eae71f15
https://doi.org/10.1115/gtindia2017-4684
https://doi.org/10.1115/gtindia2017-4684