... and wave patterns, and frequency-domain analysis, i.e., scattering parameter study. The sensor made of polyvinylidene fluoride polymer is modeled to ensure the concordance between the theoretical and numerical results as well as a preliminary experimental result obtained from transparent piezoelectric...

... improvement to the system is to relocate the piezoelectric sensor to the cement interface. A proposed method to implement these improvements is to develop a specialized sensing system with the specific application of joint replacements in mind, and more specifically, a sensing system in which the bone cement...

... Abstract The concept of a new piezoelectric actuator design is the focus of an ongoing smart structures research at DLR. It envisages actuator geometries, that have their template in nature and are aimed at optimally transfering their mechanical power to the structure in which...

... Abstract In this paper, we design and experimentally validate an auxetic nonlinear piezoelectric energy harvester. This harvester combines a clamp-clamp beam and auxetic structures, which can improve the efficiency and bandwidth of the energy harvesting based on a pure mechanical structure...

... Abstract The piezoelectric vibration energy harvester can collect energy from the ambient vibration. The vibrations from the environment are usually random and also from various directions. The current energy harvester cannot efficiently collect the energy from vibration and also the energy...

... vibration control capabilities and requires minimal structural interference. The SATMD consists of a piezoelectric device, connected to an external Resistive-Inductive electrical circuit, and a small auxiliary mass. Simulations and testing of this damper have shown high sensitivity of its performance to: (1...

... Abstract Piezoelectric energy harvesting from vibrating structures under nonlinear oscillations has been proved quite promising, with a large amount of scientific works focusing on the maximum energy harvested. However, the detailed dynamic response of an electromechanical coupled nonlinear...

..., and a full exploration of the adaptive characteristics of the topological electromechanical metamaterial has yet to be undertaken. To advance the state of the art, this study investigates the ability to enhance the range of operating frequencies for topological wave transmission in a piezoelectric...

... of a low-cost piezoelectric cantilever and a pair of magnets, is used to induce a plucking excitation and power generation under a transient and one-way movement. An energy management circuit, which is composed of a self-powered synchronized switch harvesting on inductor (SP-SSHI) interface circuit...

... in composite material is discussed and the simulations results coming from finite element analyses in frequency and time domains are presented. de-icing composite piezoelectric leading edge impedance actuator ULTRASONIC DE-ICING SYSTEM FOR LEADING EDGE IN COMPOSITE MATERIAL Leandro Maio1...

... excitation voltage has proven not to increase the sensitivity level of the EMI method. Higher voltages do improve the precision of the measurement by increasing the signal to noise ratio. structural health monitoring electromechanical impedance piezoelectric high frequency EVALUATION OF SHM...

... decreases in the size, mass, and power consumption of modern microelectronics. Despite these performance increases, for extended deployments these systems need to generate power in-situ. In this work, we explore a device that was recently deployed to test the concept of vibrational piezoelectric energy...

... step toward developing a more robust and versatile approach to Acousto-Ultrasonic SHM. SHM Piezoelectric Optical Fibre Fibre Bragg Gratings Acousto-Ultrasonics Lamb waves OPTICAL FIBRE SENSING OF HIGH ORDER LAMB WAVES FOR STRUCTURAL HEALTH MONITORING Cedric Rosalie , Patrick Norman, Joel...

... in a piezoelectric sensor. This approach may be combined with the well-documented capability of piezoelectric material to measure dynamic-strain, and may hence allow piezoelectric transducers to be used as low-power, single-solution strain sensors. DSTO has experimentally confirmed that the electrical impedance...

... Vibrational energy harvesting has been the subject of significant recent research, and has even begun commercial deployment. Despite the research community’s understanding of the fundamental mechanics of piezoelectric systems under base excitation, proper design methods and guidelines...

.... Excitations of this nature are common in the environment due to inherent nonlinearities in the dynamics of the excitation source. Normally, two separate energy harvesters are needed to extract the energy at each frequency; however, this paper discusses a single cantilevered piezoelectric vibratory energy...

... material properties and create their own databases. This paper also highlights the modeling strategies being conducted in the area of elastomers and smart materials. Keywords: dielectric elastomers, liquid crystal elastomers, piezoelectric, shape memory alloy, PVDF, thermoelectrics, ER/MR fluids, database...

... presented in this paper focuses on harvesting wind energy that is being transferred to a galloping beam. The beam has a rigid tip body with a D shaped cross section. Piezoelectric sheets are bonded on the top and bottom surface of beam. During galloping, vibrational motion is input to the system due...