Abstract
This study focuses on the quasi-static stress and modal analyses of a rotor blade by using classical and nonlocal elasticity approaches. The finite element method with an additional numerical integration process is used to evaluate the integral equation of nonlocal contionuum mechanics. The blade is assumed to be made of a linear elastic material of weak nonlocal characteristic. Such materials can be composites, metallic foams, nanophased alloys etc. A full-scale fan blade model is chosen as the test case to represent the rotor blade for a modern high bypass ratio turbofan engine. The boundary conditions and loads are chosen based on the steady-state cruising operating conditions of such blades. The nonlocal stresses are calculated by processing the calculated local stresses. To calculate the nonlocal stresses, the integral form of nonlocal elasticity is employed in the discretised domain. The results of the two cases are compared and discussed.
Original language | English |
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Title of host publication | roceedings of the ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition |
Subtitle of host publication | Structures and Dynamics: Emerging Methods in Design and Engineering |
Place of Publication | New York |
Publisher | American Society of Mechanical Engineers(ASME) |
Number of pages | 12 |
Volume | 10B |
Edition | Structures and Dynamics |
ISBN (Electronic) | 9780791884225 |
DOIs | |
Publication status | Published - 11 Jan 2021 |
Externally published | Yes |
Event | ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition - Virtual, Online Duration: 21 Sep 2020 → 25 Sep 2020 https://event.asme.org/Turbo-Expo-2020 |
Conference
Conference | ASME Turbo Expo 2020 |
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City | Virtual, Online |
Period | 21/09/20 → 25/09/20 |
Internet address |
Keywords
- stress
- modal analysis
- rotating blade
- effects
- nonlocality