Structural design and stress analysis of a high-speed turbogenerator assembly supported by hydrodynamic bearings
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2020
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International Journal of Manufacturing, Materials, and Mechanical Engineering
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Resumo
Turbine and bushing bearing are the most critical components of high-speed machines. This article
describes the design of a high-speed turbine supported by hydrodynamic bearings. The mathematical
dimensioning and the FEM analysis are presented to validate the mechanical strength of the turbine and
the bushing bearing models. Fatigue life and factor of safety were also determined. The simulations
showed that the maximum Von Mises stress values obtained are associated to the centrifugal force
generated by the system rotational movement. The results variation was mainly due to the properties
of the materials proposed. For the turbine, 7075-T6 aluminum alloy and SAE 4340 steel obtained
satisfactory behavior under a constant operating speed of 30,000 RPM. For the hydrodynamic bearing,
the TM23 bronze alloy exhibited excellent results, without fracture, and low mechanical deformation.
The models exhibited a great potential employment in several applications, such as biogas systems to
generate electrical energy, and educational test bench for thermodynamic and tribological simulations.
Como referenciar
BENTO, RODRIGO T.; FERRUS FILHO, ANDRE; FUMAGALLI, MARCO A. Structural design and stress analysis of a high-speed turbogenerator assembly supported by hydrodynamic bearings. International Journal of Manufacturing, Materials, and Mechanical Engineering, v. 10, n. 1, p. 54-67, 2020. DOI: 10.4018/IJMMME.2020010104. Disponível em: http://repositorio.ipen.br/handle/123456789/31096. Acesso em: 25 Apr 2024.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.