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International Journal of Vehicle Noise and Vibration最新文献

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Free vibration analysis of a cracked elastically supported beam 裂纹弹性支承梁的自由振动分析
International Journal of Vehicle Noise and Vibration Pub Date : 2019-09-02 DOI: 10.1504/IJVNV.2019.10020704
Mahieddine Chettah, R. Lassoued
{"title":"Free vibration analysis of a cracked elastically supported beam","authors":"Mahieddine Chettah, R. Lassoued","doi":"10.1504/IJVNV.2019.10020704","DOIUrl":"https://doi.org/10.1504/IJVNV.2019.10020704","url":null,"abstract":"In this paper, closed-form expressions based on the Rayleigh's method is studied theoretically to evaluate the first two mode shapes and fundamental frequencies of a cracked elastically supported beam. Such a problem has not been very well investigated in the literature. The Euler-Bernoulli beam theory is employed to model the cracked beam and the crack is represented as a rotational spring. Some numerical examples are given to illustrate the proposed method and to present the effect of cracks on the natural frequencies and mode shapes of this cracked system. The results are compared with analytical, numerical and previous experimental studies. It is found that the present method is simpler in application, decreases the time and cost of computations, and shows a good promise for further development as a practical method to minimise the difference between measured and calculated results; also it can be an alternative solution in the case of crack identification for elastically supported beams.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47597265","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
Modelling neutral gear rattle for a light commercial vehicle 轻型商用车空挡摇铃建模
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10030184
Mrunal P. Kshirsagar, S. Patil, A. A. Mulla, Sudhir P. Takalkar
{"title":"Modelling neutral gear rattle for a light commercial vehicle","authors":"Mrunal P. Kshirsagar, S. Patil, A. A. Mulla, Sudhir P. Takalkar","doi":"10.1504/ijvnv.2019.10030184","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10030184","url":null,"abstract":"Acoustic levels have a significant influence on the ride comfort of road vehicles. Among the others, gear rattling noise is a significant problem faced by the car industry. Automotive powertrains are under investigation to reduce and isolate the torsional vibrations responsible f or g ear rattling. T his work addresses the problem of reducing gear rattle while the engine is idling. The aim is to reduce the rattle index by introducing the pre-damper clutch plate instead of a conventional clutch plate that uses torsional vibration springs. A Matlab/Simulink model is developed to estimate the effect of spring stiffness on the rattle index of the system. The output of the model is validated experimentally and the accuracy of the Simulink model is reported. The rattle index was successfully decreased with the help of a pre-damped clutch plate, and the model is found to be accurate enough to estimate the rattle index.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688766","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
Study on electromagnetic vibration of in-wheel motor for electric vehicle 电动汽车轮毂电机电磁振动研究
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10030183
Chen Qiping, Xie Jiachao, Q. Xiao, L. Liming, Wang Ning, Wang Liang
{"title":"Study on electromagnetic vibration of in-wheel motor for electric vehicle","authors":"Chen Qiping, Xie Jiachao, Q. Xiao, L. Liming, Wang Ning, Wang Liang","doi":"10.1504/ijvnv.2019.10030183","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10030183","url":null,"abstract":"In order to solve the electromagnetic vibration problem of in-wheel motors for electric vehicles, a numerical analysis method is presented for analysing the modal of in-wheel motor. The finite element models of inner stator core, inner stator core with winding and outer rotor are established respectively. The analysis results show that the higher the order of modal vibration shape, the higher the natural frequency. The critical speed of the outer rotor is analysed and studied, which shows that the outer rotor will not cause greater vibration to the in-wheel motor when it works. The harmonic response of in-wheel motor is analysed and the displacement-frequency curves of inner stator and outer rotor are obtained respectively. The analysis results show that the in-wheel motor is not in the frequency range of electromagnetic force wave. When the frequency is higher, the deformation displacement amplitude will reach the maximum.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688759","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
Fault feature extraction of localised rub-impact fault based on vector-bispectrum and Teager energy operator 基于矢量双谱和Teager能量算子的局部碰摩故障特征提取
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10028125
Chao Zhang
{"title":"Fault feature extraction of localised rub-impact fault based on vector-bispectrum and Teager energy operator","authors":"Chao Zhang","doi":"10.1504/ijvnv.2019.10028125","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10028125","url":null,"abstract":"Bispectrum analysis is able to suppress the Gaussian noise and analyse quadratic phase coupling in the signals more accurately. However, traditional bispectrum has the problem of losing fault information at low frequency, and may not comprehensively reflect nonlinear information of the fault, which leads to weak diagnostic ability, especially for local rub-impact fault. For this reason, a new feature extraction method called vector-bispectrum energy operator is presented in this paper, which adopts vector-bispectrum based on Teager energy operator and is used to obtain the fault feature of local rubbing rotor. The results of the experiment show that the feature of the local rubbing fault extracted by Teager energy operator based vector-bispectrum is very noticeable, and the fault classification through SVM has a high recognition rate.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688638","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
Dynamic study of composite material shaft in high-speed rotor-bearing systems 复合材料轴在高速转子-轴承系统中的动力学研究
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10028116
Thimothy Harold Gonsalves, G. C. M. Kumar, M. Ramesh
{"title":"Dynamic study of composite material shaft in high-speed rotor-bearing systems","authors":"Thimothy Harold Gonsalves, G. C. M. Kumar, M. Ramesh","doi":"10.1504/ijvnv.2019.10028116","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10028116","url":null,"abstract":"In this work the composite material shaft in high-speed rotor-bearing systems is analysed to achieve better rotor dynamics along with the effect of internal damping of the composite shaft. The pioneering studies on rotating composite shaft and internal damping are revisited to evaluate its effects on rotor dynamics of high-speed rotor-bearing systems. Two practical rotor-bearing systems are selected to study their suitability for composite shaft application where the composite material is used in the cold section while the existing steel alloy is retained in the hot section as well as at the ends. The rotor dynamic analysis shows significant improvements in rotor dynamics of one of the rotor-bearing systems where the first lateral mode changes to desirable rigid mode from flexure mode shape of existing metallic shaft rotor-bearing system. The frequency values of second and third modes also increase above the operating speed indicating a clear advantage in rotor dynamics.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688545","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: 2
An improved narrowband active noise control system without secondary path modelling based on the time domain 一种改进的基于时域的无二次路径建模窄带有源噪声控制系统
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10028117
Kuheli Mondal, Saurav Das, N. Hamada, A. Abu, Saikat Das, W. Faris, H. T. Toh, Akij Ahmad
{"title":"An improved narrowband active noise control system without secondary path modelling based on the time domain","authors":"Kuheli Mondal, Saurav Das, N. Hamada, A. Abu, Saikat Das, W. Faris, H. T. Toh, Akij Ahmad","doi":"10.1504/ijvnv.2019.10028117","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10028117","url":null,"abstract":"Several secondary path, acoustic noise cancellation modelling causes the problems to increase the complexity of ANC implementation, reduction of performance caused by modelling error and requirement of auxiliary noise for secondary path modelling. The acoustic noise generated is further compounded by using secondary path identification which makes the system complex. There are several available ANC algorithms that do not require secondary path estimation for modifying the FxLMS algorithms. Due to drawbacks such as slow convergence speed and, complexity of the phase shift mechanism, a novel approach with no secondary path modelling is adopted, in which the adaptation stability is guaranteed by switching the sign of the step size. It is combined with the online tuneable delay of the reference signal to significantly improve the adaptation convergence properties of the algorithm. A new mathematical modelling has been proposed to reduce the acoustic noise that increases the convergence criteria.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688588","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
Time and magnitude dependent masking effects of vehicle's 2 Hz shock type vibrations on the perception of vehicle's 4.5 Hz longitudinal shock type vibrations for seated human subjects 车辆2hz冲击型振动对坐着受试者车辆4.5 Hz纵向冲击型振动感知的掩蔽效应随时间和幅度的变化
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10030173
Nils Bulthaupt, F. Gauterin
{"title":"Time and magnitude dependent masking effects of vehicle's 2 Hz shock type vibrations on the perception of vehicle's 4.5 Hz longitudinal shock type vibrations for seated human subjects","authors":"Nils Bulthaupt, F. Gauterin","doi":"10.1504/ijvnv.2019.10030173","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10030173","url":null,"abstract":"In the literature there are no known studies regarding temporal masking effects of a vehicle's shock type vibrations. Since shock type vibrations of different directions of movement, magnitudes and frequencies are acting on the human body while driving a vehicle, temporal masking effects may be relevant when evaluating a vehicle's ride comfort. This study investigates temporal post-masking effects of a vehicle's 2 Hz shock type vibrations (masker) on the perception of 4.5 Hz longitudinal shock type vibrations (test signal) for the seated human body. It was found that post-masking exists for the investigated vibrations. The masking effect is highly dependent on the time gap between masker and test signal: with increasing time gap the masking effect decreases. Furthermore the amount of masking increases with increasing masker magnitude. Both findings are consistent with the findings in psychoacoustics. In addition to that the masking effect depends on the masker's direction of movement.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688711","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
Noise insulation properties of carriage wallboard of high-speed trains 高速列车车厢墙板隔声性能研究
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10030181
Zhigao Dang, Zhaoyong Mao
{"title":"Noise insulation properties of carriage wallboard of high-speed trains","authors":"Zhigao Dang, Zhaoyong Mao","doi":"10.1504/ijvnv.2019.10030181","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10030181","url":null,"abstract":"With the increase of running speeds, noise transmission through carriage wallboard into cabin has become a noticeable issue to be solved in the further development. This paper presents analysis on sound insulation properties of carriage wallboard of high-speed trains. Finite element method (FEM) combined with acoustic-solid interaction (ASI) is applied to investigate the sound transmission loss (STL) performance. The predicted STLs are checked against experimental results, achieving good agreement in the trend. Then, the effects of several key parameters on sound insulation capability of the double-wall panel with different configurations of truss-core are systematically studied, including the inclination angle, the thickness, the configurations and its equivalent stiffness of the truss-core. To give intensive understanding of the STL behaviour, the equivalent stiffness of sound bridge is studied, which could provide some guidance for engineers from the perspective of sound insulation performance.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688724","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
Vibration testing of vehicle components by fatigue damage spectrum control 基于疲劳损伤谱控制的车辆部件振动试验
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10028122
A. Steinwolf, P. Wolfsteiner
{"title":"Vibration testing of vehicle components by fatigue damage spectrum control","authors":"A. Steinwolf, P. Wolfsteiner","doi":"10.1504/ijvnv.2019.10028122","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10028122","url":null,"abstract":"Random vibration testing with increased kurtosis introduces high peaks into shaker drive signals to simulate land vehicle vibration more accurately or to shorten duration of fatigue damage testing. For the latter, the kurtosis control method must be able to pass high kurtosis values from the generated shaker vibration into the stress response of the tested component. It was verified and confirmed in the paper that the method of phase manipulation based on the analytical relationship between the IFFT phases and kurtosis was capable of doing so if the resonance frequency of the component is known. However, the fatigue damage spectrum model used for evaluation of time-to-failure considers not just one but a number of resonance frequencies constituting a certain test profile which cannot be simulated by the kurtosis control alone. For this purpose, the phase manipulation method was developed further and verified for operational vibrations of a railway vehicle.","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688599","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: 3
Evaluation of vibration characteristics of partially cracked symmetric laminated orthotropic hybrid composite plates 部分裂纹对称层合正交各向异性杂化复合材料板振动特性评价
International Journal of Vehicle Noise and Vibration Pub Date : 2019-01-01 DOI: 10.1504/ijvnv.2019.10028126
A. Verma, P. B. Deshmukh, M. Verma, Vikky Kumhar
{"title":"Evaluation of vibration characteristics of partially cracked symmetric laminated orthotropic hybrid composite plates","authors":"A. Verma, P. B. Deshmukh, M. Verma, Vikky Kumhar","doi":"10.1504/ijvnv.2019.10028126","DOIUrl":"https://doi.org/10.1504/ijvnv.2019.10028126","url":null,"abstract":"","PeriodicalId":34979,"journal":{"name":"International Journal of Vehicle Noise and Vibration","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66688654","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
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