Spin Testing Improves Electrified Propulsion Rotor Design for
Production and Certification 2023-01-1021
There is a demonstrated need for effective design verification testing to support
certification strategies for nascent electric motors and electric propulsion
systems. Design efforts pursue efficiency pushing electrified propulsion rotors
to be lighter and incorporate greater power density; however, there is no clear
path established for supporting structural integrity and durability test
requirements as required by global certification agencies.
Application of new materials, unique rotor design characteristics, and modified
certification requirements drive unusual requirements for rotor modeling
substantiated by component test data that addresses complex stress distribution
characteristics.
Our paper addresses testing electrified propulsion rotors using spin test
protocols adapted to support integrity and durability test goals. We further
incorporate key concerns for planning and executing component spin tests of
rotating structures necessary to support global engine certification efforts.
Results from component tests are effective for mitigating risks associated with
the preservation of certification test schedules and potential end product
safety issues.
This paper presents data measurement techniques that are incorporated with
specific spin tests to enhance the value of acquired data. Adapted test
protocols include Overspeed and Low cycle fatigue (LCF) tests, which are more
relevant types of spin tests for certification purposes.
Innovative measurement techniques for capturing the rotor growth behavior for
both mappings the speed-dependent growth trends and the circumferential profile
of deforming rotor under centrifugal load generate useful data to evaluate
materials and structural behavior affecting performance up to failure.
Citation: Endo, H., Hartnagel, M., Buschbeck, A., and Schonfeld, M., "Spin Testing Improves Electrified Propulsion Rotor Design for Production and Certification," SAE Technical Paper 2023-01-1021, 2023, https://doi.org/10.4271/2023-01-1021. Download Citation
Author(s):
H. Endo, M. Hartnagel, A. Buschbeck, M. Schonfeld
Affiliated:
Schenck USA Corp., Schenck ROTEC GMBH
Pages: 6
Event:
2023 AeroTech
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Electric motors
Test procedures
Engines
Propellers and rotors
Certification
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