Dynamic characteristics and optimization research on PVDF piezoelectric film force sensor for steel ball cold heading machine

Li, Yingjun; Wang, Guicong; Cui, Huanyong; Cao, Shukun; Wang, Xiangyu

doi:10.1016/j.isatra.2019.04.021

Cited by 16 publications

(11 citation statements)

References 23 publications

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“…L 2 P is related to position, velocity and gravity. By combining equations ( 15), ( 16), (21), the limb mass and stiffness matrix can be obtained as shown in equation (23). The limb mass matrix is M l .…”

Section: Natural Frequency and Modal Of The Platformmentioning

confidence: 99%

Elastodynamics of an overconstrained 8-SS platform for touchdown impact force measurement

Zhou

Han

Guo

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Passive overconstrained parallel mechanism has many advantages due to extra constraints to the platform. When applied to the force sensor field, it can increase the capability, stiffness and dynamic response of the sensor. In this study, an overconstrained [Formula: see text] platform is presented to measure the multi-dimensional landing impact force. Screw theory is used to obtain the concentrated inertia force. Then, by adding the inertial force into the VJM (Virtual Joint Method) stiffness model, the static analysis is extended to elastodynamics analysis. Natural frequency and modal are derived from the elastodynamics equation and show well agreement with the FEA result in Abaqus. Theoretical force measurement equation is deduced. The FEA simulation result proves the effectiveness of the theoretical equation. Experiments are also conducted to verify the feasibility of the platform.

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Section: Natural Frequency and Modal Of The Platformmentioning

confidence: 99%

Elastodynamics of an overconstrained 8-SS platform for touchdown impact force measurement

Zhou

Han

Guo

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Piezoelectric sensors have been widely applied in structural health monitoring to improve the safety and reliability of structures and to reduce life-cycle costs [ 1 , 2 , 3 ]. For this reason, the study of piezoelectric sensors including PZT [ 4 , 5 ], ALN [ 6 , 7 , 8 ], PVDF [ 9 , 10 ], ZnO [ 11 , 12 ], etc., has become a hot topic. The sensors are usually mounted on the surface of a structure or embedded into the structure to monitor its working state.…”

Section: Introductionmentioning

confidence: 99%

Development and Characterization of ZnO Piezoelectric Thin Film Sensors on GH4169 Superalloy Steel Substrate by Magnetron Sputtering

Cui

Yin

et al. 2022

Micromachines

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At present, piezoelectric sensors are primarily applied in health monitoring areas. They may fall off owing to the adhesive’s durability, and even damage the monitored equipment. In this paper, a piezoelectric film sensor (PFS) based on a positive piezoelectric effect (PPE) is presented and a ZnO film is deposited on a GH4169 superalloy steel (GSS) substrate using magnetron sputtering. The microstructure and micrograph of ZnO piezoelectric thin films were analyzed by an X-ray diffractometer (XRD), energy dispersive spectrometer (EDS), scanning electron microscope (SEM), and atomic force microscope (AFM). The results showed that the surface morphology was dense and uniform and had a good c-axis-preferred orientation. According to the test results of five piezoelectric sensors, the average value of the longitudinal piezoelectric coefficient was 1.36 pC/N, and the average value of the static calibration sensitivity was 19.77 mV/N. We selected the sensor whose parameters are closest to the average value for the dynamic test experiment and we drew the output voltage response curve of the piezoelectric film sensor under different loads. The measurement error was 4.03% when repeating the experiment six times. The research achievements reveal the excellent performance of the piezoelectric film sensor directly deposited on a GH4169 superalloy steel substrate. This method can reduce measurement error caused by the adhesive and reduce the risk of falling off caused by the aging of the adhesive, which provides a basis for the research of smart bolts and guarantees a better application in structural health monitoring (SHM).

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“…Among them, PVDF and its co-polymer are becoming the focus of research regarding its low cost, high flexibility, quick response, and piezoelectric. These outstanding properties can be adopted as energy harvesters [5,6] and sensors [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Enhancement Research on Piezoelectric Performance of Electrospun PVDF Fiber Membranes with Inorganic Reinforced Materials

Wang

Yan³

et al. 2021

Coatings

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The electrospun PVDF fiber membranes with the characteristics of light weight, strong signal and measurability, have been widely applied in the fields of environment, energy sensors and biomedical treatment. Due to the weakness of the piezoelectric and service properties, the conventional PVDF fiber membranes cannot meet the operating requirements. Based on the obtained optimal technological parameter of electrospun pure PVDF fiber membranes (P-PVDF) in the previous experiment (unpublished), three inorganic reinforced substances (AgNO3, FeCl3·6H2O, nanographene) were respectively used to dope and modify PVDF to prepare composite fiber membranes with the better piezoelectric performance. The morphology and crystal structure of the hybrid fiber membranes were observed and detected by scanning electron microscopy and X-ray diffraction, respectively. The results showed that the dopant could effectively promote the formation of β-phase, which can enhance the piezoelectric performance. The mechanical properties test and piezoelectric performance test exhibited that the static flexural strength, the elastic modulus, and the piezoelectric performance were improved with the addition of dopant. In addition, the influence on the addition of dopant and the doping modification mechanism were discussed. Finally, the conclusions showed that the minimum average diameter was obtained with the 0.3 wt% addition of AgNO3; the piezoelectric performance reached the strongest with the 0.8 wt% addition of FeCl3·6H2O; the mechanical properties were best with the 1.0 wt% addition of nanographene.

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Dynamic characteristics and optimization research on PVDF piezoelectric film force sensor for steel ball cold heading machine

Cited by 16 publications

References 23 publications

Elastodynamics of an overconstrained 8-SS platform for touchdown impact force measurement

Elastodynamics of an overconstrained 8-SS platform for touchdown impact force measurement

Development and Characterization of ZnO Piezoelectric Thin Film Sensors on GH4169 Superalloy Steel Substrate by Magnetron Sputtering

Enhancement Research on Piezoelectric Performance of Electrospun PVDF Fiber Membranes with Inorganic Reinforced Materials

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