Analysis of mechanical dynamics in acoustofluidics: assessing the impact of frequency sweeping on PZT performance and acoustic phenomena [0.03%]
声学流体动力学中的机械动力学分析：评估频率扫掠对PZT性能和声学现象的影响
Antonio Maisto,Remco G P Sanders,Amaury de Hemptinne et al.
Antonio Maisto et al.
In this work, we combine acoustic streaming measurements, direct vibration measurements and the theory of wave dispersion to interpret changes in acoustic streaming. The vibration dynamics of the PZT are studied under frequency sweeping act...
Ultrasonic vibration-assisted laser directed energy deposition: influence of vibration frequencies on thermal and mechanical characteristics [0.03%]
超声振动辅助激光直接能量沉积成形：振动频率对热特性和力学特性的影响
Sarower Kabir,Shah Rumman Ansary,Cynthia Nnokwe et al.
Sarower Kabir et al.
The part produced via Laser Directed Energy Deposition (LDED) generates defects such as lack of fusion, porosity, cracking, inhomogeneous microstructure etc. Thermal behavior of the molten pool and solidification procedures plays a vital ro...
Circular orbital manipulation of positive-acoustic-contrast particles employing double-ring perfect acoustic-vortex beams [0.03%]
双环完美声涡束对正对比度粒子的轨道操控
Qi Zhang,Li Gu,Yihao Ni et al.
Qi Zhang et al.
Non-contact acoustic-vortex (AV) tweezers have gained prominence for high-precision manipulation. However, conventional AV beams are limited by their topological charge (TC)-dependent radii. While perfect AV beams address this radius issue,...
Manon Favre,Simon Dagois-Bohy,Sophie Miralles et al.
Manon Favre et al.
The dispersion of nanoparticles in polymer melts is a major challenge in composite processing, especially in highly viscous systems where conventional extrusion provides poor mixing. Concomitantly, ultrasound has proven effective to dispers...
Modeling and simulation of enhanced pipe detection performance via zero group velocity combined harmonics generated by counter-directional guided waves mixing [0.03%]
反向传播导波混频零群速度组合谐波的增强型管道检测数值仿真研究
Xiewen Liu,Wujun Zhu,Yanxun Xiang et al.
Xiewen Liu et al.
Pipes typically suffer from material degradation during service, necessitating reliable nondestructive inspection. Recently, zero group velocity (ZGV) combined harmonic generated by guided waves mixing was recognized as a potential mode for...
Acoustic measurement methods and spatiotemporal distribution patterns of microbubble spectra in water under artificial aeration conditions [0.03%]
人工增氧条件下水体微气泡光谱的时空分布及测量方法研究
Junliang Liu,Xianghong Huang,Jinhui He
Junliang Liu
Microbubbles serve as the primary initiators of acoustic cavitation and directly determine the cavitation threshold, intensity, and spatial distribution of cavitation activity. However, measuring microbubble spectra, particularly under high...
A hybrid analytical and numerical approach for backscattering of leaky Rayleigh waves from inclusions at an inviscid fluid/solid boundary [0.03%]
黏性流体/固体界面中包含物的漏射雷利波背散射的混合解析和数值方法
Shan Li,Yiheng Zhang,Yalong Sun et al.
Shan Li et al.
A hybrid analytical and numerical approach is developed to describe the backscattering of leaky Rayleigh waves (LRWs) from surface and subsurface elastic inclusions at an inviscid fluid/solid interface. The method combines analytical expres...
Efficient ultrasonic phased array focused wave imaging using retrospective encoding and p-th root wavenumber-domain reconstruction [0.03%]
基于回顾性编码和p次根波数域重建的高效相控阵聚焦超声成像方法
Lida Yu,Yuhua Zhang,Yongfeng Song et al.
Lida Yu et al.
Ultrasonic phased array imaging is widely used in industrial non-destructive testing (NDT) due to its advantages of a flexible transmit-receive strategy, high sensitivity and excellent visualization. However, conventional ultrasonic phased ...
A Modal Synergistic Actuation Multi-Degree-of-Freedom Rotary Piezoelectric Actuator Based on Mode-Shapes Spatial Position Control [0.03%]
一种基于模态位置控制的多自由度旋转压电协同驱动作动器
Shiyu Zhang,Haoren Feng,Liang Wang et al.
Shiyu Zhang et al.
Conventional multi-degree-of-freedom (multi-DOF) piezoelectric actuators realize 3D motion by coordinating several orthogonal physical axes (e.g., X/Y/Z). This reliance substantially inflates hardware and control complexity. Therefore, we p...
Coupling mechanism and critical effects of ultrasonic imaging for corrugated interface: a Rayleigh perturbation approach [0.03%]
用于波纹界面超声成像的耦合机制及关键效应：瑞利摄动法研究
Zhihui Xu,Yuxuan Jin,Yiling Zhang et al.
Zhihui Xu et al.
The bonding integrity of corrugated interfaces in clad plates fundamentally governs their macroscopic performance, yet high-precision nondestructive evaluation (NDE) of these geometrically complex bonds remains a critical industrial challen...