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- W3136154566 abstract "The phenomenon of laser shock strengthening (LSP) changing the resonance frequency of a structure can be used to adjust the frequency of aero-engine blades, and has a broad application prospect. In this paper, through the combination of mechanical analysis, numerical simulation and vibration test, the effect of LSP technology on structural vibration characteristics is studied. The influence mechanism of local stiffness changes on the modal frequency of the structure is analyzed from the perspective of vibration and energy. It is found that when the laser shock is strengthened in a region with large bending deformation, the greater the contribution to the overall modal stiffness and elastic potential energy, the greater the modal frequency. The impact is also greater. Established a mapping relationship among laser shock strengthening, local stiffness and modal frequency, and finally proved that LSP technology can significantly change the local elastic modulus of TC4 titanium alloy, which provides a reliable application of the technology in the production department Theoretical support." @default.
- W3136154566 created "2021-03-29" @default.
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- W3136154566 date "2020-09-01" @default.
- W3136154566 modified "2023-09-23" @default.
- W3136154566 title "Effect of Laser Shock Strengthening on Modal Frequency" @default.
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- W3136154566 doi "https://doi.org/10.1088/1742-6596/1637/1/012139" @default.
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