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提出采用激光冲击波驱动液体介质中悬臂梁使其产生运动的驱动方式.为了解激光冲击波驱动悬臂梁的运动特性,在统一考虑结构与液体性质的基础上,采用有限元方法,比较了单脉冲激光冲击波驱动真空中和水中悬臂梁的振动输出,并对多脉冲激光冲击波驱动悬臂梁进行了有限元仿真.结果表明:液态介质使悬臂梁振动频率大大降低,衰减加快;在多脉冲作用下,悬臂梁振动幅值在第一个脉冲后有所增大,增幅可达到40%.分析结果显示:在激光冲击波作用下,悬臂梁在其安全范围内可以获得较大的变形量,这表明用激光冲击波驱动悬臂梁可实现符合要求的的运动.
A laser driving method was proposed to drive the cantilever beam in a liquid medium to produce the movement.In order to understand the movement characteristics of the cantilever beams driven by a laser shock wave, based on the uniform structural and liquid properties, the finite element method was used to compare the single-pulse laser The results show that the liquid medium can greatly reduce the vibration frequency of the cantilever beam and accelerate the attenuation of the cantilever beam. With the multi-pulse, the cantilever beam The vibration amplitude of the beam increases after the first pulse, and the amplitude can reach 40%. The analysis results show that the cantilever beam can obtain larger deformation in the safe range of the laser shock wave, which shows that the laser beam Shock wave driven cantilever beam to achieve the desired movement.