Advances in Mechanical Engineering最新文献

Deterministic and stochastic model predictive energy management of hybrid electric vehicles using two improved speed predictors 使用两种改进的速度预测器对混合动力电动汽车进行确定性和随机模型预测能源管理

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241259937

Jingzhou Gao, Kai Xu, Ke Li, Wei Du, Zhenhao Zheng, Shengdun Zhao, Lijun Yan

{"title":"Deterministic and stochastic model predictive energy management of hybrid electric vehicles using two improved speed predictors","authors":"Jingzhou Gao, Kai Xu, Ke Li, Wei Du, Zhenhao Zheng, Shengdun Zhao, Lijun Yan","doi":"10.1177/16878132241259937","DOIUrl":"https://doi.org/10.1177/16878132241259937","url":null,"abstract":"The performance of model predictive control strategies for hybrid electric vehicles (HEVs) highly depends on the accuracy of future speed predictions. This paper proposes improved prediction models for deterministic model predictive control (DMPC) and stochastic model predictive control (SMPC), respectively. For DMPC, the neural network-based predictor is first introduced and taken as the benchmark predictor. A novel deterministic predictor considering historical prediction errors is proposed, which relies on the assumption that the offset between the prediction and measurement at current instant is a good estimate of the offset in the short future. Based on the proposed deterministic predictor, a stochastic predictor that considers the distribution law of historical data at different locations is further proposed for SMPC. Simulation results show that the controller using the proposed deterministic prediction model improves fuel economy by 2.89%, and the controller using the proposed stochastic prediction model improves fuel economy by 4.5% compared with the benchmark.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on the operation and quality control of small rock hole shotcrete robot 小岩洞喷射混凝土机器人操作与质量控制研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241254960

Zhonglin Zhang, Weisheng Li, Liquan Li, Fanlin Min, Ang Li, Linxiang Li

{"title":"Research on the operation and quality control of small rock hole shotcrete robot","authors":"Zhonglin Zhang, Weisheng Li, Liquan Li, Fanlin Min, Ang Li, Linxiang Li","doi":"10.1177/16878132241254960","DOIUrl":"https://doi.org/10.1177/16878132241254960","url":null,"abstract":"A small rock shotcrete robot is applied in the deep tunnel dynamic disaster physical simulation system in order to simulate the final operation process of the tunnel project. The robot’s spraying operation and control include many kind of factors. In this paper, the main parameters affecting the spraying operation are analyzed by establishing the spraying model and coating growth model. For matching reasonably the spraying parameters, the matching equation of spraying quality and spraying gun parameter model and spraying feed speed has been derived. Based on the matching equation, the spraying gun structure and robot control system are designed, and the spraying distance and spraying gun movement velocity including horizontal and vertical driving have been controlled better. On the basis of theoretical analysis, a small rock hole shotcrete robot prototype has been developed and the spraying experiments have been finished. The experimental results showed that the model and equation established can guided the spraying quality control. With the increase of the injection elevation angle, the length of the long and short axes of the elliptic coating becomes larger, and the average thickness of the coating center is between 2.23 and 2.34 mm, which meets the design index of the injection robot. The rock hole shotcrete robot meet the design requirements.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141402225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Research on cutting lubrication performance of textured tools considering slip boundary conditions 考虑滑移边界条件的纹理刀具切削润滑性能研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241260025

Caiyun Duan, Yaoming Zhu, Qinghua Song

引用次数: 0

Aerodynamic optimization method of intake grille of active clearance control system for turbines based on modified social spider algorithm (MSSA) 基于改良社会蜘蛛算法（MSSA）的涡轮机主动间隙控制系统进气格栅空气动力学优化方法

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241257328

Hong Xie, Shuyi Zhang, Xiangfeng Shi, Bo Yang, Chunrong Wang

引用次数: 0

Active suspension and steering system control of emergency rescue vehicle based on sliding mode dual robust coordination control 基于滑动模式双稳健协调控制的应急救援车主动悬挂和转向系统控制

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241259720

Donghua Zhao, Mingde Gong, Dingxuan Zhao, Wenbin Liu, Wenbin Chen

{"title":"Active suspension and steering system control of emergency rescue vehicle based on sliding mode dual robust coordination control","authors":"Donghua Zhao, Mingde Gong, Dingxuan Zhao, Wenbin Liu, Wenbin Chen","doi":"10.1177/16878132241259720","DOIUrl":"https://doi.org/10.1177/16878132241259720","url":null,"abstract":"The multi-axle emergency rescue vehicle has dangerous driving conditions, high body height, and large weight, and the coupling of each subsystem of the chassis is more complicated. In order to solve the coordination problem between the vehicle suspension system and the steering system, the vehicle can drive more smoothly on uneven road surfaces and improve the riding comfort of passengers. A sliding mode dual robust coupled collaborative control strategy is proposed to address the impact of the multi-axis steering system and active suspension system on driving smoothness and handling stability of emergency rescue vehicles. The active suspension system and multi-axle steering system are synergistically controlled. Firstly, an active suspension sliding mode variable structure controller is designed to improve vehicle ride comfort. Secondly, A new dual robust controller is proposed to realize the handling stability of the vehicle’s all-wheel steering system. Thirdly, the coupling cooperative controller of the active suspension system and all-wheel steering system is designed and simulated under different working conditions. The experimental results show that the root-mean-square values of body roll angle, body roll angle acceleration, and yaw angle acceleration with cooperative control are reduced by 26.58%, 30.54%, and 21.92% respectively; moreover, the lateral acceleration and vertical acceleration of the vehicle body are effectively reduced. The use of cooperative control effectively improves the ride comfort and handling stability of the vehicle.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141394476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multi-verse optimizer for thermal error modeling approach of spindle system based on thermal image 基于热图像的主轴系统热误差建模方法的多逆优化器

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241254181

Yue Han, Xiaolei Deng, Yushen Chen, Chengzhi Fang, Wanjun Zhang, Yong Chen, Jianchen Wang

{"title":"Multi-verse optimizer for thermal error modeling approach of spindle system based on thermal image","authors":"Yue Han, Xiaolei Deng, Yushen Chen, Chengzhi Fang, Wanjun Zhang, Yong Chen, Jianchen Wang","doi":"10.1177/16878132241254181","DOIUrl":"https://doi.org/10.1177/16878132241254181","url":null,"abstract":"Since the spindle thermal error of CNC machine tools has a significant impact on machining precision, this paper introduces a unique approach for modeling spindle thermal error. Several key steps are involved in the proposed approach. First, the Fluke thermal imaging camera is employed for acquiring thermal image information of the spindle system. Second, the Gaussian filter is employed to denoise the thermal image sequence. Next, the temperature values at the measurement points are extracted from the thermal image sequence according to the mapping relationship between the grayscale value and the temperature value. Subsequently, critical temperature points are identified from thermal images using the density-based spatial clustering of applications with noise (DBSCAN) algorithm and the correlation coefficient method. Finally, the multi-verse optimized NARX neural network is employed to investigate the nonlinear prediction of thermal deformation. The research is conducted on the VMC-850E vertical machining center as the subject of study. The performance of the model is validated under conditions of idle spindle and 5000 r/min, comparing prediction results against traditional algorithms. The findings demonstrate that the non-contact measurement method based on thermal imaging successfully establishes the thermal error model, achieving a prediction accuracy of 0.1517 μm for the MVO-NARX model.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141398389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Numerical simulation and performance prediction of the ejection impact of air springs 空气弹簧弹射冲击力的数值模拟和性能预测

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241259875

Yuru Li, Shou-Ne Xiao, Junke Xie, Tao Zhu

{"title":"Numerical simulation and performance prediction of the ejection impact of air springs","authors":"Yuru Li, Shou-Ne Xiao, Junke Xie, Tao Zhu","doi":"10.1177/16878132241259875","DOIUrl":"https://doi.org/10.1177/16878132241259875","url":null,"abstract":"To address the challenges of applying air springs in high-speed rail vehicle ejections, the ejection of a driver’s cabin structure is focused on in this study, and an ejection simulation model of an air spring is proposed using a series-parallel combination. The model’s accuracy is verified through virtual collision analysis of the driver’s cabin in a rail vehicle. The ejection velocity exhibits a relative error of only 9.1%. The test vehicle, driven by an air spring, achieves a maximum kinetic energy of 415 kJ, meeting the initial target value of no less than 408 kJ. Additionally, the analysis of the wheel-rail interaction reveals that the vertical lift and lateral displacement of the test vehicle are within acceptable limits, measuring 5.49 and 9.89 mm, respectively, without exceeding the wheel flange height and tread width. These results demonstrate that an air spring with a series-parallel combination can successfully propel the test vehicle to conduct the driver’s cabin collision tests without any derailment or overturning. Research on the ejection performance of air springs in this configuration offers a new driving and ejection method for applying air springs in rail vehicles, drones, and air-launched missiles, presenting promising prospects for future applications.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141407848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A new real-time optimal energy management strategy for range extended electric vehicles considering battery degradation and engine start-up 考虑电池衰减和发动机启动的新型实时增程电动汽车最佳能源管理策略

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-06-01 DOI: 10.1177/16878132241257327

Jinglai Wu, Wenhao Gao, Yunqing Zhang

{"title":"A new real-time optimal energy management strategy for range extended electric vehicles considering battery degradation and engine start-up","authors":"Jinglai Wu, Wenhao Gao, Yunqing Zhang","doi":"10.1177/16878132241257327","DOIUrl":"https://doi.org/10.1177/16878132241257327","url":null,"abstract":"Range extended electric vehicles (REEVs) offer a solution to the limited range of pure electric vehicles by incorporating an additional energy source. Effectively managing the output power among these energy sources is the key to reduce operating cost. To enhance the economy of REEVs, this paper proposes a multi-objective optimal energy management strategy (MOEMS) that considers battery degradation. The powertrain of the REEV is comprehensively modeled by integrating the efficiency of the range extender, battery, and driving motor. MOEMS is designed to instantaneously minimize the total operating cost of the vehicle, including factors such as fuel consumption, electricity consumption, and battery degradation. To minimize the frequency of engine starts and stops, the cost associated with engine startup is integrated into the objective function. Two control coefficients are introduced into the objective function to regulate the battery state of charge. Additionally, another coefficient is employed to restrict variations of engine output power, thereby avoiding significant fluctuations of engine load. Simulation results show that compared to the adaptive equivalent consumption minimization strategy (AECMS) and rule-based energy management strategy (REMS), the total cost of MOEMS is reduced by 9.1% and 32.3% in WLTC driving cycles, and by 7.9% and 31.7% in CLTC driving cycles.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141414144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Abnormal noise identification of engines based on wavelet packet transform and bispectrum analysis 基于小波包变换和双谱分析的发动机异常噪声识别技术

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-01-01 DOI: 10.1177/16878132231224538

Xingguo Yang, Ya Zhang, Xujun Li

{"title":"Abnormal noise identification of engines based on wavelet packet transform and bispectrum analysis","authors":"Xingguo Yang, Ya Zhang, Xujun Li","doi":"10.1177/16878132231224538","DOIUrl":"https://doi.org/10.1177/16878132231224538","url":null,"abstract":"Abnormal noise is the most prominent problem for motorcycles and affects the consumers’ purchasing desire and driving experience and the enterprise’s competitiveness. Usually, the noise from a newly assembled engine is detected by manual auscultation (MA) to determine if the engine is operating normally. However, MA is also affected by subjective and objective factors with severe labor intensity, and its accuracy greatly fluctuates. Importantly, MA cannot be applied in a corporation with mass production and high-quality requirements. To improve the efficiency and accuracy of motorcycle engine quality inspection and achieve intelligent production, an online engine abnormal noise detection method was proposed based on wavelet packet transform (WPT) and bispectrum analysis (BA); this method improved the accuracy and stability of the identification of the abnormal noise engine and reduced the cost of the check. First, the acoustic signal of the engine of the motorcycle was acquired by using a free-field microphone. Second, the background noise of signals was eliminated by using the wavelet correlation coefficient (WCC) theory, and the signal features were extracted by applying WPT and BA. Third, the feature vectors were normalized before being used as support vector machine (SVM) samples. Fourth, an appropriate kernel function and parameters were selected to train the vector machine using the training sets. Finally, the testing sets were used to inspect the accuracy of the vector machines. The result showed that the training accuracy is 95% and the testing accuracy is 97.5 of the samples were suitable by using the method of wavelet packet transform-bispectrum analysis-support vector machines (WPT-BA-SVM). WPT-BA-SVM effectively identified engine fault types and provided the theoretical foundation for the establishment of an engine abnormal noise online detection system.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139454666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 of a novel two-degree-of-freedom translational-rotation low-frequency vibration isolation platform 设计新型两自由度平移旋转低频隔振平台

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2024-01-01 DOI: 10.1177/16878132231222728

Shuai Wang, Dawei Xin, Lang Yu, Qinghua Zhang

{"title":"Design of a novel two-degree-of-freedom translational-rotation low-frequency vibration isolation platform","authors":"Shuai Wang, Dawei Xin, Lang Yu, Qinghua Zhang","doi":"10.1177/16878132231222728","DOIUrl":"https://doi.org/10.1177/16878132231222728","url":null,"abstract":"Multi-dimensional vibration isolation platforms often use parallel mechanisms to achieve multi-dimensional vibration isolation control. However, due to the high stiffness of the parallel mechanism, its own natural frequency is high, and it has good performance when applied to high-frequency vibration isolation, but it is hard to achieve low-frequency vibration isolation. This paper aims at the problem that the actual polishing and grinding equipment is often subjected to axial and circumferential low-frequency disturbances during operation, a novel C/2-(2-RRR) RR two-degree-of-freedom (2-DOF) translational-rotation low-frequency vibration isolation platform is proposed based on the singular configuration of planar 2-RRR mechanism. The coupling dynamic model of the vibration isolation platform is established, and the amplitude-frequency curve and force transmissibility curve are analyzed. The simulation analysis and prototype experiment are carried out by using the independent external excitation in both translational and rotational directions, and the corresponding linear system is compared to verify the effectiveness of the low-frequency vibration isolation of the two-degree-of-freedom vibration isolation platform.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139458109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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