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Vibration tests boost NASA's electric aircraft project
Tuesday, 2 November 2021

To ensure NASA's new X-57 "Maxwell" electric aircraft would be energy efficient and safe for use, NASA carried out extensive ground vibration tests, simulating the stresses it would experience during a real flight.

With the increasing demand for electric-powered ground transportation, NASA wanted to prove that an aircraft could also be electrically powered. The result is the X-57 "Maxwell" airplane, which - instead of the usual gasoline-powered motors - has two, all-electric motors powered by traction batteries.

To ensure the new design meets the criteria for energy efficiency and airworthiness, NASA's experimental aircraft underwent multiple vibration tests and data from the accelerometers around the motor was collected on a LAN-XI data acquisition system and analyser platform, provided by test and measurement expert, Hottinger Bruel & Kjaer (HBK).

Following this, NASA's engineers used HBK's BK Connect software to test and analyse data from 191 test runs, with 14 different test configurations. The ground vibration test results gave NASA a much better understanding of the modal characteristics of the X-57, currently in the Mod II configuration.

Work on the new aircraft will continue, with the X-57 project team updating the model now they have the necessary data.

Contact details from our directory:
Hottinger Bruel & Kjaer UK Ltd Vibration Analysis, Vibrators, Environmental Test Equipment, Acoustic Test Equipment, Computer-aided Testing, Stress Analysis Equipment, Test Equipment, High Speed Strain Gauges, Fatigue Test Equipment, Force Sensors, Optical Measurement Equipment, Process Control Systems, Sensors/Transducers, Torque Meters, Transducers
NASA Armstrong Flight Research Center Vibration Testing, Research/Consulting Services, Testing Services
Hottinger Brüel & Kjaer Inc. Vibration Analysis, Calibration Equipment & Services, Acoustic Testing Services, Laboratory Testing Services, Gauges, Fibre Optic Test Equipment, Electric/Electronic Test Equipment, Electronic Test Services, Fatigue Testing, Fatigue Test Equipment, Sensors/Transducers, Stress Analysis Equipment, Transducers, Testing Services, Torque Meters, Position/Displacement Detectors, Force Sensors
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