Journal of Intelligent Manufacturing & Mechatronics最新文献

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Spread enhancement for firefly algorithm with application to control mechanism of exoskeleton system 萤火虫扩散增强算法及其在外骨骼系统控制机构中的应用

Journal of Intelligent Manufacturing & Mechatronics Pub Date : 2019-01-31 DOI: 10.15282/MEKATRONIKA.V1I1.163

H. Kasdirin, Siti Khadijah Ali, M. Tokhi

{"title":"Spread enhancement for firefly algorithm with application to control mechanism of exoskeleton system","authors":"H. Kasdirin, Siti Khadijah Ali, M. Tokhi","doi":"10.15282/MEKATRONIKA.V1I1.163","DOIUrl":"https://doi.org/10.15282/MEKATRONIKA.V1I1.163","url":null,"abstract":"Firefly algorithm (FA) is a swarm intelligence based algorithm for global optimization and has widely been used in solving problems in many areas. The FA is good at exploring the search space and locating the global optimum, but it always gets trapped at local optimum especially in case of high dimensional problems. In order to overcome such drawbacks of FA, this paper proposes a modified variant of FA, referred to as spread enhancement strategy for firefly algorithm (SE-FA), by devising a nonlinear adaptive spread mechanism for the control parameters of the algorithm. The performance of the proposed algorithm is compared with the original FA and one variant of FA on six benchmark functions. Experimental and statistical results of the approach show better solutions in terms of reliability and convergence speed than the original FA especially in the case of high-dimensional problems. The algorithms are further tested with control of dynamic systems. The systems considered comprise assistive exoskeletons mechanism for upper and lower extremities. The performance results are evaluated in comparison to the original firefly and invasive weed algorithms. It is demonstrated that the proposed approaches are superior over the individual algorithms in terms of efficiency, convergence speed and quality of the optimal solution achieved.","PeriodicalId":377013,"journal":{"name":"Journal of Intelligent Manufacturing & Mechatronics","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114631496","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

Wireless Wide Area Radiation Monitoring Network Using Internet of Things 基于物联网的无线广域辐射监测网络

Journal of Intelligent Manufacturing & Mechatronics Pub Date : 2019-01-31 DOI: 10.15282/MEKATRONIKA.V1I1.978

N. A. Rashid, Khairul Anwar Bapujee

引用次数: 3

Suppression of Chatter in High Speed Milling Machine Using Spindle Speed Variation Method with Acoustic Feedback PID Controller 基于声反馈PID控制的主轴转速变化法抑制高速铣床颤振

Journal of Intelligent Manufacturing & Mechatronics Pub Date : 2019-01-31 DOI: 10.15282/MEKATRONIKA.V1I1.156

M. V. Suparmaniam, A. Yusoff

{"title":"Suppression of Chatter in High Speed Milling Machine Using Spindle Speed Variation Method with Acoustic Feedback PID Controller","authors":"M. V. Suparmaniam, A. Yusoff","doi":"10.15282/MEKATRONIKA.V1I1.156","DOIUrl":"https://doi.org/10.15282/MEKATRONIKA.V1I1.156","url":null,"abstract":"High speed milling (HSM) process limited by tool failure and dynamic instabilities due to the influence of relative vibration between tool and workpiece, so called chatter. Chatter vibration literally responsible for lower productivity and poor surface quality. In this project, chatter occurrence during machining was suppressed using spindle speed variation (SSV) method via microphone online detection techniques. The initial experiment begins with constant material removal rate (MRR) where varies depth of cut, feedrate and spindle speed were analyzed using time and frequency domain. Then, based on the result, microcontroller based PID algorithm was tested again in active mode. The result shows magnificient differences in frequnecy.This proves that chatter occurrence during machining can be suppressed using spindle speed variation method with microphone feedback PID controller. This also offers high speed milling usage industries with extra benefits of high productivity and can conserve time and money. Moreover, this method could enable providing high efficiency, accuracy, quality of final workpieces and eliminates semi- finishing process.","PeriodicalId":377013,"journal":{"name":"Journal of Intelligent Manufacturing & Mechatronics","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125713516","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