Journal of Vibration and Control最新文献_第4页

Output-constrained control of beam-swing dynamics of tower cranes with elastic jibs 带弹性臂的塔式起重机梁摆动态的输出约束控制

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-06 DOI: 10.1177/10775463241275720

Ruiqi Gao

引用次数: 0

A multi-source unsupervised fault diagnosis network with residual enhancement attention module for rotating machinery cross-operating conditions 针对旋转机械交叉运行条件的多源无监督故障诊断网络与残差增强关注模块

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-06 DOI: 10.1177/10775463241280426

Hangbo Duan, Zongyan Cai, Qingtao Liu, Ke Zhao, Dan Zhang

引用次数: 0

Balance control for dynamic displacement of active suspension and ride comfort 主动悬挂系统动态位移和乘坐舒适性的平衡控制

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-06 DOI: 10.1177/10775463241273780

Mingde Gong, Jiaming Bi, Haoran Yang, Xueliang Xu, Tianshuo Sun

引用次数: 0

Response prediction and optimization of a rotor with variable stiffness supports based on pseudo-steady approximation 基于伪稳近似的带变刚度支撑的转子响应预测与优化

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-06 DOI: 10.1177/10775463241276246

Fuyi Jin, Chaoping Zang, Guangpeng Xing, Yuxiang Ma, Shanhu Yuan, Zhigang Jia

{"title":"Response prediction and optimization of a rotor with variable stiffness supports based on pseudo-steady approximation","authors":"Fuyi Jin, Chaoping Zang, Guangpeng Xing, Yuxiang Ma, Shanhu Yuan, Zhigang Jia","doi":"10.1177/10775463241276246","DOIUrl":"https://doi.org/10.1177/10775463241276246","url":null,"abstract":"The flexible rotor of an aero-engine must pass through several critical speeds within its working speed range, but its reliability can be compromised by intense vibration caused by the resonance at these critical speeds. A novel method for reducing multiple resonant peaks of a flexible rotor is explored based on multiple supports of variable stiffness in this paper. Firstly, to determine the optimal stiffness change path of these supports, a pseudo-steady approximation method (PSAM) considering the influence of support stiffness change rate is proposed for predicting time-domain responses based on frequency-domain calculations. This approach has a definite advantage in time-domain solutions as it is less time-consuming. Then, to verify the effectiveness of the PSAM, time-domain simulations are conducted, which yielded highly consistent results with the PSAM calculation results with the Structural Similarity Index (SSIM) up to 93.7%. Finally, with the assistance of the PSAM, the Dijkstra algorithm was used to identify the most efficient path of variable stiffness for controlling multiple resonant peaks of a flexible rotor. A rotor test was carried out utilizing variable stiffness supports which are made of shape memory alloy (SMA) springs. The efficiency of the optimal variable stiffness path acquired through PSAM was verified through testing, which demonstrated that displacement can be reduced by up to 70.8%.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"46 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Control of uncertain non-affine nonlinear systems using neural networks subject to input saturation with unknown control direction 利用神经网络对输入饱和且控制方向未知的不确定非线性非线性系统进行控制

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-04 DOI: 10.1177/10775463241273826

Mohammad Hadi Rezaei, Morteza Ghaseminezhad, Meisam Kabiri

引用次数: 0

Optimal design of dynamic vibration absorber for elastic vibration control of vehicle carbody in time-varying service environment 用于时变服务环境下车辆车身弹性振动控制的动态减震器优化设计

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-04 DOI: 10.1177/10775463241280328

Fansong Li, Xiang Du, Letian Liu, Hao Wang, Chaotao Liu, Hao Wu

{"title":"Optimal design of dynamic vibration absorber for elastic vibration control of vehicle carbody in time-varying service environment","authors":"Fansong Li, Xiang Du, Letian Liu, Hao Wang, Chaotao Liu, Hao Wu","doi":"10.1177/10775463241280328","DOIUrl":"https://doi.org/10.1177/10775463241280328","url":null,"abstract":"Due to frequent acceleration and deceleration and large passenger capacity, metro vehicles generally experience eccentric wear on the wheels. Moreover, the highest running speed is between 80 km/h and 100 km/h, and the corresponding wheel rotation frequency is mainly between 7 Hz and 11 Hz, which is close to the first-order vertical bending modal frequency of the carbody. Therefore, the dynamic performance of the carbody would be deteriorated in the later stage of wheel wear. In order to suppress the vibration caused by eccentric wear, this study intends to design the underframe equipment as a dynamic vibration absorber. Unlike the traditional fixed-point theory method, this paper takes the external time-varying running speed as the input, a suspension frequency optimal design method based on probability distribution of wheel rotation frequency is proposed. And the design principle is experimentally verified based on the full-scale railway vehicle vibration test rig. Compared with the design method based on fixed-point theory, the results show that the acceleration rms value of carbody by optimal design method is reduced by 8% ∼ 20%. It is suggested that the design of underframe equipment for metro vehicles should be combined with the characteristics of time-varying service environment.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"82 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Predefined-time sliding mode filtering control of memristor-based Bao hyper-chaotic system 基于忆阻器的鲍超混沌系统的预定义时间滑模滤波控制

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-04 DOI: 10.1177/10775463241272821

Shixiang Zhu, Rongfeng Li, Yuming Feng, Dongfang Yan, Babatunde Oluwaseun Onasanya

引用次数: 0

Prediction of rail wear band evolution under excitation by periodic track irregularities and its influence on vehicle dynamic performance 周期性轨道不规则性激励下的轨道磨损带演变预测及其对车辆动态性能的影响

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-03 DOI: 10.1177/10775463241276327

Bingguang Wen, Gongquan Tao, Zefeng Wen

{"title":"Prediction of rail wear band evolution under excitation by periodic track irregularities and its influence on vehicle dynamic performance","authors":"Bingguang Wen, Gongquan Tao, Zefeng Wen","doi":"10.1177/10775463241276327","DOIUrl":"https://doi.org/10.1177/10775463241276327","url":null,"abstract":"Periodic track irregularities (PTIs) are an important and sensitive source of vehicle vibration and have attracted considerable attention from railway researchers. However, previous studies have mainly focused on the irregularities themselves, with limited investigation of how the rail wear band (RWB) generated by PTIs excitation affects vehicle responses. To assess this, a three-dimensional rail wear prediction model is developed in this study to simulate the evolution of the RWB under PTIs conditions and then the effect of RWB excitation on the vehicle dynamic performance is investigated. The results show that the spatial trace of the rail contact points generated by the PTIs also exhibits clear periodic characteristics. Accordingly, the distribution pattern of the RWB also reflects these periodic features. The excitation of the periodic rail wear band (PRWB) has a negative effect on the vehicle running stability, especially when the vehicle is traveling at speeds that induce coupling resonance, which exacerbates the consequences. As the wear level of the PRWB increases, there is also an escalation in the vibration of the carbody. Furthermore, the amplitude of the change in the wheelset balance position resulting from variations in rail profile is found to serve as an effective descriptor for characterizing the wear intensity of PRWB, and the vibration amplitude of the carbody exhibits a clear linear correlation with PRWB excitation. The research results are helpful for understanding the relationship between PRWB excitation and vehicle vibration behavior and serve as a theoretical basis for track maintenance and profile optimization.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"408 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and development of closed-loop controllers for trajectory tracking of a planar vibration-driven robot 设计和开发用于平面振动驱动机器人轨迹跟踪的闭环控制器

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-03 DOI: 10.1177/10775463241276026

Seyed Mehdi Mousavi, Vahid Fakhari

{"title":"Design and development of closed-loop controllers for trajectory tracking of a planar vibration-driven robot","authors":"Seyed Mehdi Mousavi, Vahid Fakhari","doi":"10.1177/10775463241276026","DOIUrl":"https://doi.org/10.1177/10775463241276026","url":null,"abstract":"Vibration-driven robots constitute an innovative paradigm for achieving locomotion, leveraging periodic vibrations to meticulously control the movement of an internal mass, thus affording them a high degree of precision while navigating surfaces with varying friction characteristics. This paper is dedicated to the refinement of trajectory tracking in planar vibration-driven robots, achieved through the meticulous design and implementation of a Proportional-Integral-Derivative (PID) controller and Sliding Mode Controller (SMC). The considered vibration-driven robot is propelled using two parallel reciprocating unbalanced masses which allows the robot to have various maneuvers in two dimensions. The movement of the robot is improved by employing bristles to make non-isotropic Coloumb’s friction on the surfaces. At first, the governing dynamic equations of the robot are derived by considering the stick-slip effect and using the Euler–Lagrange method. Moreover, a PID controller for accurate trajectory tracking within the robot’s natural coordinate system is designed and employed. The fine-tuning of the PID controller’s coefficients is accomplished through the application of the NSGA-II optimization method. Subsequently, a SMC strategy is introduced to enable the robot’s control in an absolute coordinate system. The paper culminates with the presentation, in-depth analysis, and evaluation of the simulation results, shedding light on the significant enhancements in performance and capabilities achieved by vibration-driven robots. In conclusion, the pivotal role of the NSGA II algorithm in optimizing controller parameters is emphasized, and although the PID controller excels in trajectory tracking, challenges with sudden acceleration changes are identified.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"7 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Identification of flame transfer function and mechanism analysis of the influence of boundary impedance characteristics on thermoacoustic instability 火焰传递函数的识别和边界阻抗特性对热声不稳定性影响的机理分析

IF 2.8 3区工程技术

Journal of Vibration and Control Pub Date : 2024-09-03 DOI: 10.1177/10775463241273014

Jingzhen Chen, Jingtao Du, Yang Liu, Long Liu

{"title":"Identification of flame transfer function and mechanism analysis of the influence of boundary impedance characteristics on thermoacoustic instability","authors":"Jingzhen Chen, Jingtao Du, Yang Liu, Long Liu","doi":"10.1177/10775463241273014","DOIUrl":"https://doi.org/10.1177/10775463241273014","url":null,"abstract":"Thermoacoustic instability is a common problem in the operation of modern gas turbines. The prediction of thermoacoustic instability and the clarification of its mechanism are the research focus and difficulty in the gas turbine industry. As a response function of flame to acoustic disturbance, flame transfer function is a key parameter in the study of thermoacoustic instability. In this paper, based on the scaled adaptive simulation (SAS) model combined with the eddy dissipation concept (EDC) combustion model, the time-domain flow field data are processed by the system identification method, and the results of flame transfer function extraction are in good agreement with the experimental values. Then, the detailed derivation process of the low-order thermoacoustic network model (LOTAN) is given to capture the behavior characteristics of the acoustic wave in the thermoacoustic system. On this basis, the effects of acoustic boundary conditions and hysteresis time on the thermoacoustic instability of the combustion system are analyzed, and the relationship between the mode shape, pressure, vibration velocity phase, and thermoacoustic instability is explored. It is found that the phase relationship between pressure and vibration mode can be used to determine the thermoacoustic instability of the system. This is of great practical significance for determining the thermoacoustic instability of the system and clarifying the internal mechanism of its generation and provides theoretical support for the subsequent thermoacoustic instability control.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"14 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142208070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0