Mathematical and Computer Modelling of Dynamical Systems最新文献_第9页

Multiphysics finite element model for the computation of the electro-mechanical dynamics of a hybrid reluctance actuator 混合磁阻作动器机电动力学计算的多物理场有限元模型

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-06-28 DOI: 10.1080/13873954.2020.1766509

F. Cigarini, E. Csencsics, J. Schlarp, S. Ito, G. Schitter

{"title":"Multiphysics finite element model for the computation of the electro-mechanical dynamics of a hybrid reluctance actuator","authors":"F. Cigarini, E. Csencsics, J. Schlarp, S. Ito, G. Schitter","doi":"10.1080/13873954.2020.1766509","DOIUrl":"https://doi.org/10.1080/13873954.2020.1766509","url":null,"abstract":"ABSTRACT In hybrid reluctance actuators, the achievable closed-loop system bandwidth is affected by the eddy currents and hysteresis in the ferromagnetic components and the mechanical resonance modes. Such effects must be accurately predicted to achieve high performance via feedback control. Therefore, a multiphysics electro-mechanical finite element model is proposed in this paper to compute the dynamics of a 2-DoF hybrid reluctance actuator. An electromagnetic simulation is adopted to compute the electromagnetic dynamics and the actuation torque, which is employed as input for a structural dynamic simulation computing the electro-mechanical frequency response function. For model validation, the simulated and measured frequency response plots are compared for two actuators with solid and laminated outer yoke, respectively. In both cases, the model accurately predicts the measurement results, with a maximum relative phase error of 1.7% between the first resonance frequency and 1 kHz and a relative error of 1.5% for the second resonance frequency..","PeriodicalId":49871,"journal":{"name":"Mathematical and Computer Modelling of Dynamical Systems","volume":"26 1","pages":"322 - 343"},"PeriodicalIF":1.9,"publicationDate":"2020-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13873954.2020.1766509","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48260987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Cattaneo–Christov heat flux model for three-dimensional flow of a viscoelastic fluid on an exponentially stretching surface 指数拉伸表面上粘弹性流体三维流动的Cattaneo–Christov热通量模型

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-06-23 DOI: 10.1080/13873954.2020.1777566

Sehrish Malik, M. Ashraf, A. Jahangir

引用次数: 6

Production and payment policies for an imperfect manufacturing system with discount cash flows analysis in fuzzy random environments 模糊随机环境下具有折扣现金流的不完全制造系统的生产支付策略分析

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-06-22 DOI: 10.1080/13873954.2020.1771380

Puspita Mahata, G. C. Mahata

引用次数: 10

Master-slave synchronization of neural networks with time-varying delays via the event-triggered control 基于事件触发控制的时变时滞神经网络主从同步

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-06-16 DOI: 10.1080/13873954.2020.1777567

Jun Zhou, Dongbing Tong, Qiaoyu Chen, Wuneng Zhou

引用次数: 4

Modelling and analysis of haemoglobin catalytic reaction kinetic system 血红蛋白催化反应动力学系统的建模与分析

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-06-16 DOI: 10.1080/13873954.2020.1771379

Yanhong Liu, Hui Lv, Bin Wang, Deyun Yang, Qiang Zhang

{"title":"Modelling and analysis of haemoglobin catalytic reaction kinetic system","authors":"Yanhong Liu, Hui Lv, Bin Wang, Deyun Yang, Qiang Zhang","doi":"10.1080/13873954.2020.1771379","DOIUrl":"https://doi.org/10.1080/13873954.2020.1771379","url":null,"abstract":"ABSTRACT In order to study whether haemoglobin (Hb) can replace peroxidase and has good catalytic properties. The key to exploring the characteristics of Hb peroxidase is to establish a suitable kinetic model, which is studied in this paper. First, according to the Hb catalytic reaction, a nonlinear system is established and improved. It is proved that the established system is in line with the practical significance. The stability of the original system is judged by analysing the stability of the simplified system. Then, considering the effect of time delay on Hb catalytic reaction, a nonlinear time-delay catalytic reaction system is obtained. For convenient application, the system is linearized using Taylor’s formula, and the dynamic characteristics of Hopf bifurcation are analysed. The response diagrams of three system are plotted by setting perturbation parameters, and their variations are observed to analyse the differences among them. The results show that the nonlinear time-delay system can better describe the characteristics of the catalytic reaction.","PeriodicalId":49871,"journal":{"name":"Mathematical and Computer Modelling of Dynamical Systems","volume":"26 1","pages":"306 - 321"},"PeriodicalIF":1.9,"publicationDate":"2020-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13873954.2020.1771379","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42370330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dynamic modelling of a multi-cable driven parallel platform with guiding devices 带有导向装置的多索驱动并联平台的动力学建模

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-05-03 DOI: 10.1080/13873954.2020.1759653

Yan-de Wang, Z. Kou, Guohua Cao

引用次数: 2

Trajectory-tracking of 6-RSS Stewart-Gough manipulator by feedback-linearization control using a novel inverse dynamic model based on the force distribution algorithm 基于力分布算法的新型逆动力学模型反馈线性化控制6-RSS Stewart Gough机械手轨迹跟踪

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-05-03 DOI: 10.1080/13873954.2020.1754861

Zafer Mahmoud, Mohammad Reza Arvan, V. Nekoukar, M. Rezaei

{"title":"Trajectory-tracking of 6-RSS Stewart-Gough manipulator by feedback-linearization control using a novel inverse dynamic model based on the force distribution algorithm","authors":"Zafer Mahmoud, Mohammad Reza Arvan, V. Nekoukar, M. Rezaei","doi":"10.1080/13873954.2020.1754861","DOIUrl":"https://doi.org/10.1080/13873954.2020.1754861","url":null,"abstract":"ABSTRACT 6-RSS Stewart-Gough parallel manipulator contains six crank-rod limbs connecting the base and moving platforms to each other, forming a 6DOF manipulator. In this paper, we introduce a novel decoupled inverse dynamic model for this manipulator based on the Force Distribution Algorithm. The performance of the proposed model was evaluated in tracking a complex trajectory (of multiple segments with simultaneous translational and rotational motions) using feedback-linearization control in the joint space and compared with that of the Lagrangian inverse dynamic model. Results showed that this model leads to a better performance in feedback-linearization control, especially when the reference trajectory is quantized, and with less calculation burden in comparison with the Lagrangian model. The control system employing both models showed robustness against payload uncertainty on the moving platform (150% of the moving platform’s mass). The performance assessment and the robustness approval were performed in simulation using a Simscape model specifically built for this purpose in the Simulink environment.","PeriodicalId":49871,"journal":{"name":"Mathematical and Computer Modelling of Dynamical Systems","volume":"26 1","pages":"268 - 299"},"PeriodicalIF":1.9,"publicationDate":"2020-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13873954.2020.1754861","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48701956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

System dynamics modelling of mixed recycling mode based on contract: a case study of online and offline recycling of E-waste in China 基于契约的混合回收模式系统动力学建模——以中国电子垃圾线上与线下回收为例

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-05-03 DOI: 10.1080/13873954.2020.1762096

Shi-di Miao, Di Liu, Junfeng Ma, Feng Tian

{"title":"System dynamics modelling of mixed recycling mode based on contract: a case study of online and offline recycling of E-waste in China","authors":"Shi-di Miao, Di Liu, Junfeng Ma, Feng Tian","doi":"10.1080/13873954.2020.1762096","DOIUrl":"https://doi.org/10.1080/13873954.2020.1762096","url":null,"abstract":"ABSTRACT As the pace of global sustainable economic development accelerates, increasing attention has been brought to the reutilization of waste electronic resources (E-waste). As the leading manufacturer and consumer of electronic products, China has now become the largest producer of E-waste around the world. Considering the current state of recycling mode in China, Huawei Technologies Co. Ltd. (Huawei) took the lead in implementing a blended operation model of manufacturer-led recycling model (offline recycling, OffR) and retailer-led recycling model (online recycling, OnR). In order for the improvement of recycling efficiency for Huawei and other telecommunication companies, this paper constructs a closed-loop network model of mixed recycling (MR) between manufacturers and retailers based on contract, where manufacturers and retailers jointly recycle E-waste for the provision of E-waste to manufacturers for remanufacturing. In this paper, the MR model is compared against the OffR model and OnR model to evaluate the recycling allocation mechanism run by both manufacturer and retailer and then a contract-based, closed-loop network model of mixed recycling between manufacturers and retailers is developed on the basis of obtaining the optimal MR model. By means of simulation analysis, the optimal recycling allocation ratio between manufacturer and retailer is determined. The results obtained from this study are expected to help manufacturers and retailers with effective negotiation and cooperation, so as to improve the efficiency of E-waste recycling while promoting sustainable development and reducing the economic losses caused by price competition to the minimum. This research contributes to not only the waste management studies but also the recycling of E-waste in China and other countries.","PeriodicalId":49871,"journal":{"name":"Mathematical and Computer Modelling of Dynamical Systems","volume":"26 1","pages":"234 - 252"},"PeriodicalIF":1.9,"publicationDate":"2020-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/13873954.2020.1762096","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42311682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Robust object-oriented formulation of directed thermofluid stream networks 定向热流体流网络的鲁棒面向对象公式

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-05-03 DOI: 10.1080/13873954.2020.1757726

D. Zimmer

引用次数: 9

Growth rate, growth curve and growth prediction of tumour in the competitive model 竞争模型中肿瘤的生长速率、生长曲线及生长预测

IF 1.9 4区数学

Mathematical and Computer Modelling of Dynamical Systems Pub Date : 2020-03-03 DOI: 10.1080/13873954.2020.1738498

Mahdi Sohrabi-Haghighat, Atefeh Deris

引用次数: 0