Vibrations in Physical Systems最新文献_第2页

Numerical Review of Selected Solutions of Vibratory Feeders Capable of Dosing Feed Material 能给料加药的振动给料机选择解的数值分析

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.3.22

Witold Surówka, P. Czubak

引用次数: 0

Influence of Machining Accuracy of Links on Dynamic Response of Planar Mechanisms 连杆加工精度对平面机构动态响应的影响

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.2.07

M. Hać

引用次数: 0

The Investigations of Suspension Model and Its Experimental Characteristics for the Air Springs of Truck Trailer 汽车挂车空气弹簧悬架模型及试验特性研究

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.2.21

Maciej Obst, D. Kurpisz, P. Wasilewicz

引用次数: 0

The influence of the configuration of the fiber-metal laminates on the dispersion relations of the elastic wave modes 金属纤维层合板的结构对弹性波模色散关系的影响

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.2.02

M. Barski, A. Muc, A. Stawiarski

引用次数: 1

Measurements of Vibration Using a High-Speed Camera – Comparative Tests 用高速照相机测量振动-比较试验

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.2.11

P. Kowalski

{"title":"Measurements of Vibration Using a High-Speed Camera – Comparative Tests","authors":"P. Kowalski","doi":"10.21008/J.0860-6897.2020.2.11","DOIUrl":"https://doi.org/10.21008/J.0860-6897.2020.2.11","url":null,"abstract":"In the technical diagnostics and monitoring of high dynamic processes high-speed cameras are getting wider application. Recorded images sequence analysis of an object position makes possible to study also the oscillating movement. In this paper results of some exploratory research of test vibration signals are presented. The aim of the study was to examine the possibility of applying high-speed camera to vibration measurements in the frequency range up to 1000 Hz. The performed tests consisted in the simultaneous registration and analysis of vibration test signals using 4 alternative measuring systems. and then the determination of the frequency characteristics of vibration acceleration, total corrected (Wh characteristics) and uncorrected vibration acceleration values. The results of recorded image analyses of oscillating movement were compared with results of vibration acceleration measurements obtained using laser and piezoelectric transducers. Vibration acceleration spectra, the uncorrected and corrected (Wh characteristics) total vibration acceleration values were determined. Based on the achieved results, some limitations and conditions for the application of the high-speed camera used for vibration analyses have been identified. The test results confirmed the possibility of use of high-speed camera for research of low frequency vibration even at low displacements.","PeriodicalId":38508,"journal":{"name":"Vibrations in Physical Systems","volume":"31 1","pages":"2020211-1-2020211-10"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68248304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Application of Probabilistic Power Spectral Density Technique to Monitoring the Long-Term Vibrational Behaviour of CERN Seismic Network Stations 概率功率谱密度技术在监测欧洲核子研究中心地震台站长期振动特性中的应用

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.3.11

Ł. Łacny, Ł. Ścisło, M. Guinchard

引用次数: 11

Influence of Mechanical and Electromagnetic Phenomena on Electric Motor Vibrations in Different Power Supply Options 机械和电磁现象对不同供电方式下电机振动的影响

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.1.02

Mateusz Wróbel, R. Barczewski, B. Jakubek, Wojciech Rukat

引用次数: 0

Energy Harvesting Shock Absorber with Linear Generator and Mechanical Motion Amplification 带线性发电机和机械运动放大的能量收集减震器

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.1.04

N. Satpute, M. Iwaniec, Ramesh Narina, S. Satpute

{"title":"Energy Harvesting Shock Absorber with Linear Generator and Mechanical Motion Amplification","authors":"N. Satpute, M. Iwaniec, Ramesh Narina, S. Satpute","doi":"10.21008/J.0860-6897.2020.1.04","DOIUrl":"https://doi.org/10.21008/J.0860-6897.2020.1.04","url":null,"abstract":"Energy harvesting shock absorbers can generate about 15-20 W of electric power for normal suspension velocities. However, higher weight, fail safe characteristics and space limitations have restricted development of regenerative shock absorbers to research prototypes. Power to weight ratio of regenerative shock absorbers can be improved by incorporating motion amplification. In the presented work, an innovative design of energy harvesting shock absorber has been presented that uses motion amplification for improving harvesting efficiency. Apart from improving electric power, the proposed solution is fail safe and can be easily incorporated in existing vehicles with only marginal change in suspension layout. Study includes detailed numerical analysis for vibration transmissibility to investigate comfort and safety. Further, a prototype has been fabricated and experimentation has been performed to compute electric power generated and comfort. Simulations have been performed on real size model with utilization of harvested electric power which indicates about 19% of overall harvesting efficiency.","PeriodicalId":38508,"journal":{"name":"Vibrations in Physical Systems","volume":"31 1","pages":"2020104-1-2020104-8"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68247311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Identification of Characteristic Vibration Signal Parameters During Transport of Fruit and Vegetable 果蔬运输过程中特征振动信号参数的识别

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.1.11

Natalia Idaszewska, G. Szymański

引用次数: 1

Characterization of Piezoelectric Bimorph Actuator 3D-Deformations Caused by Electric Change by Means of Multiscale Curvature Analysis 基于多尺度曲率分析的压电双晶片致动器电变化三维变形表征

Vibrations in Physical Systems Pub Date : 2020-01-01 DOI: 10.21008/J.0860-6897.2020.2.03

Tomasz Bartkowiak, M. Pelic

{"title":"Characterization of Piezoelectric Bimorph Actuator 3D-Deformations Caused by Electric Change by Means of Multiscale Curvature Analysis","authors":"Tomasz Bartkowiak, M. Pelic","doi":"10.21008/J.0860-6897.2020.2.03","DOIUrl":"https://doi.org/10.21008/J.0860-6897.2020.2.03","url":null,"abstract":"The objective of this work is to demonstrate the use of multiscale curvature tensor analysis to characterize deformations of piezoelectric bimorph actuator and to study the relation between loaded electric charge and the resulting deformed surface curvature. In particular, the strength of the correlations between surface shape characterized by curvature parameters (i.e., principal, Gaussian or mean curvature) and charge density is sought. The impact that the scale of the analysis of the curvature can have on the values of the curvature parameters for the deformed surfaces and the correlation with discharge energy is also studied. In this study the deformations of piezoelectric bimorph actuators are studied. In order to achieve quasi-static measurements, a dedicated charge amplifier was built to supply charge to the actuator. The deformations were then measured by Polytec® 3D laser scanning vibrometer PSV-400 by integration of captured motion. The obtained data was used to calculate curvature tensor field at multiple scales by applying the normal-based method. Principal, mean and Gaussian curvature was calculated at multiple scales and were correlated with applied charge. The obtained results contribute to better understanding of piezoelectric behavior under electric field.","PeriodicalId":38508,"journal":{"name":"Vibrations in Physical Systems","volume":"31 1","pages":"2020203-1-2020203-12"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68247807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0