A5100367318- Acoustic Wave Phenomena Research
- Vibration and Dynamic Analysis
- Composite Structure Analysis and Optimization
- Noise Effects and Management
- Advanced machining processes and optimization
- Hearing Loss and Rehabilitation
- Advanced Surface Polishing Techniques
- Advanced Machining and Optimization Techniques
- Vehicle Noise and Vibration Control
- Metamaterials and Metasurfaces Applications
- Vibration Control and Rheological Fluids
- Structural Health Monitoring Techniques
- Railway Engineering and Dynamics
- Microstructure and Mechanical Properties of Steels
- Mechanical stress and fatigue analysis
- Aerodynamics and Acoustics in Jet Flows
- Fluid Dynamics and Vibration Analysis
- Civil and Geotechnical Engineering Research
- Aeroelasticity and Vibration Control
- Wind and Air Flow Studies
- Industrial Technology and Control Systems
- Tunneling and Rock Mechanics
- Structural Analysis and Optimization
- Quantum Mechanics and Non-Hermitian Physics
- Iron and Steelmaking Processes
Soochow University
2016-2025
Second Affiliated Hospital of Soochow University
2025
Northwest Institute of Nuclear Technology
2024
China Coal Technology and Engineering Group Corp (China)
2024
Beijing Institute of Technology
2024
Beijing Satellite Navigation Center
2024
Zhengzhou University
2020-2023
National Defense Institute
2023
Qufu Normal University
2019-2023
Anhui Polytechnic University
2017-2022
Titanium alloys are widely used in aviation, marine, automotive, offshore, and medical fields. However, their poor wear resistance reduces the safety reliability of components during service. Few study has been previously conducted on enhancement titanium (including Ti–6Al–4V alloy) processed by mechanical cutting. High-speed ultrasonic vibration cutting (HUVC) is an effective approach for improving machinability alloys. In this study, we attempted to utilize HUVC After conducting high-speed...
Flexural vibration in Timoshenko beams with periodically attached local resonators is studied theoretically and experimentally. The existence of a low frequency flexural gap indicated by the complex band structure calculated transfer matrix theory for an infinite beam, as well response function finite element method beam resonators. This was manufactured experiments generated experimental curve showing expected. gaps provides control beams.
In this paper, we present a design of locally resonant (LR) beams using periodic arrays beam-like resonators (or vibration absorbers) attached to thin homogeneous beam. The main purpose work is twofold: (i) providing theoretical characterization the proposed LR beams, including band gap behavior infinite systems and transmittance finite structures, (ii) experimental evidence associated properties, especially coexistence Bragg gaps, their evolution with tuned local resonance. For first...
Recently, by introducing locally resonant scatterers with spherical shape proposed in phononic crystals into design of underwater sound absorption materials, the low-frequency phenomenon induced localized resonances is observed. To reveal this mechanism, effect mode on should be studied. In paper, finite element method, which testified efficiently comparing calculation results those layer multiple scattering introduced to investigate dynamic modes and corresponding resonance. The...
Due to the development of new engineering materials and high-speed cutting, cutting fluid plays an important role in machining. Commonly, use can decrease temperature, reduce friction between tool workpiece, extend life, improve machining efficiency surface quality. These effects were mainly obtained from its basic functions including cooling, lubrication, corrosion protection, cleaning. According review researches fluids applied metal process, available focused on application strategies...
The propagation of longitudinal elastic waves in quasi one-dimensional structure consisting harmonic oscillators periodically jointed on a slender beam is studied. Sub-frequency locally resonant band gap with highly asymmetric attenuation observed both theoretical and experimental results, results match well. stiffness mass ratios are found analytically as two factors that influence the actual phononic crystals. study weights shows ratio key one. Thus, reason for mismatch between regions...
A periodic array of resistive inductive (RL) shunted piezoelectric (PZT) patches is applied to achieve tunable low-frequency locally resonant (LR) band gaps in a flexible isotropic beam. Each pair surface-bonded PZT linked an independent RL circuit. All the circuits are same and tuned synchronously. transfer matrix methodology used calculate frequency range attenuation properties LR gap. Two main differences found between induced by shunting traditional oscillators. Antoniou's produce large...
Periodic arrays of piezoelectric patches connected by enhanced resonant shunting circuits are attached to a slender beam control the propagation vibration. Numerical models based on transfer matrix methodology constructed predict band structure, attenuation factors and transmission vibration in proposed smart structure. The attenuations structure that with passive compared order verify efficiency circuits. Vibration experiments conducted validate theoretical predictions. specimen combination...
Periodic arrays of piezoelectric patches shunted by amplifier–resonator circuits are attached to a beam in order gain large low-frequency attenuations the propagation flexural vibration. A numerical model based on transfer matrix methodology and Bloch theory built predict band gaps attenuation factors as well transmission vibration proposed smart metamaterials. Influences circuital parameters equivalent Young's modulus studied. It is found that central frequency lower than resonant because...
Instead of analog electronic circuits and components, digital controllers that are capable active multi-resonant piezoelectric shunting applied to elastic metamaterials integrated with patches. Giving thanks the introduced control technique, strategies transfer functions can hardly be realized is possible now. As an example, "pole-zero" method developed design single- or bandgaps by adjusting poles zeros in function directly. Large simultaneous attenuations up three frequency bands at deep...
A periodic binary straight beam with different cross sections is constructed and studied. The band structures of flexural waves in the structure are calculated plane-wave expansion method vibration attenuation spectra a finite sample it element method. Vibration experiment performed order to validate all theoretical results, results match mainly. Finally, isolation designed by using feature wave gaps structure, which provides an about 30dB frequency range gaps.