Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018最新文献

Development of a Flex-PLI System Model and Investigations of Injury Flex-PLI系统模型的开发和损伤的研究

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814853

Yong Han, In-Hyeok Lee, Whe-Ro Lee

{"title":"Development of a Flex-PLI System Model and Investigations of Injury","authors":"Yong Han, In-Hyeok Lee, Whe-Ro Lee","doi":"10.3384/ECP1814853","DOIUrl":"https://doi.org/10.3384/ECP1814853","url":null,"abstract":"Pedestrian accidents give direct damage to the human body. Pedestrians do not have any safety devices and it results in a significant risk of injury to the pedestrians as compared to other accidents (Carroll, 2014). To protect pedestrians, EURO NCAP, JNCAP, and various pedestrian safety laws are enforced. Korea also imposes KNCAP and related laws. Assessment of pedestrian injuries is performed throughout impact tests using the head, upper leg, and lower leg impactor. (Yong, 2006) Pedestrian injury simulation is normally performed using the Finite element method at the early design stage to reduce a cost and research period. FE simulation requires detail design data, highperformance equipment and long computation time. FE simulation gives detail results how each part is deformed, how much energy is absorbed and how much injury values are resulted in. But on the other hand, it requires well-designed simulation matrix and many simulations to find contributions to the injury values of various design parameters at the initial design stage. The system model simulation allows more intuitive parametric studies than the existing detailed FE studies. The computation is much faster than the FE simulation, results are obtained results within in a few seconds and contributions of various parameters are directly get throughout simple parametric simulations. In this study, the impactor and vehicle system model is developed for the lower leg injury risk assessment. The system model of lower leg impactor, Flex-PLI is developed by comparing to its FE model and system model parameters are calibrated against several static and dynamic certification tests of FLEX-PLI. The vehicle is modeled to equivalent mass-spring-damper systems and its parameters are obtained from existing FE simulation results. And finally developed system model is verified against FE simulation results.","PeriodicalId":378465,"journal":{"name":"Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018","volume":"206 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115035104","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

Robust Modeling of Directed Thermofluid Flows in Complex Networks 复杂网络中定向热流体流动的鲁棒建模

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814839

D. Zimmer, Daniel Bender, Alexander Pollok

引用次数: 9

Universal Controllers for Architecture Simulation 架构仿真通用控制器

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP18148223

Alexander Pollok, F. Casella

{"title":"Universal Controllers for Architecture Simulation","authors":"Alexander Pollok, F. Casella","doi":"10.3384/ECP18148223","DOIUrl":"https://doi.org/10.3384/ECP18148223","url":null,"abstract":"For optimization studies of dynamical systems, it is common practice to model and tune local controllers for miscellaneous subsystems. For instance, a model of a chemical plant may contain a valve motor model, and a model of a PID controller may be included to control the motor. The associated controller tuning effort is ultimately wasted. The actual controller will be retuned anyway after finalization of the system design, or will be structurally different. For this reason, control algorithms are needed that just provide the functionality of the actual control algorithm that will be designed in a later phase of the system design. These temporary algorithms need to have low tuning requirements, and it must be possible for non-controlspecialist to generate them. On the other hand, they only need to function inside a simulation environment. Several mainstream control approaches are reviewed, and boundary layer sliding mode control is proposed as a suitable approach for this kind of task. This class of controllers can be used without any tuning effort, and is able to compete with tuned PID-controllers in terms of tracking performance. An end-user friendly implementation of a universal controller in the equation-based and object-oriented modelling language Modelica is presented. Several examples are shown to demonstrate the performance of the proposed approach.","PeriodicalId":378465,"journal":{"name":"Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129598384","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

Modelling silicon carbide based power electronics in electric vehicles as a study of the implementation of the semiconductor devices using Dymola 利用Dymola对基于碳化硅的电力电子器件在电动汽车中的实现进行建模研究

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP18148147

Leonard Janczyk, Y. Nishigori, Yasuo Kanehira

引用次数: 1

Modeling of Fuel Cell Hybrid Vehicle in Modelica: Architecture and Drive Cycle Simulation 燃料电池混合动力汽车Modelica建模:体系结构与驱动循环仿真

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814891

Sara Sigfridsson, Lixiang Li, Håkan Runvik, J. Gohl, Antonin Joly, K. Soltesz

引用次数: 2

Automated Test of CVT Control Software, Using FMI and Modelica Models 基于FMI和Modelica模型的CVT控制软件自动化测试

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP18148155

Weihua Zeng, L. Fei, L. Belmon

{"title":"Automated Test of CVT Control Software, Using FMI and Modelica Models","authors":"Weihua Zeng, L. Fei, L. Belmon","doi":"10.3384/ECP18148155","DOIUrl":"https://doi.org/10.3384/ECP18148155","url":null,"abstract":"Hunan Jianglu & Rongda Vehicle Transmission Ltd., Co. has recently completed the development of a Continuously Variable Transmission (CVT). The transmission and the control software must be fitted to various vehicle platforms and must suit various driving conditions and driver requests. Because of the complexity of the system and due to the large number of driving conditions, systematic tests and validation methods are required. These methods should guarantee correctness and quality of the software and system behavior. For the test of the control software, Jianglu Rongda used an innovative test method based on automatic test scenario generation, Software in the Loop (SiL) simulation, and finally Hardware in the Loop (HiL) tests. The CVT control software is executed with a vehicle simulation model developed with SimulationX/Modelica, which is used both for the SiL and the HiL tests. The model accurately represents the CVT transmission including mechanical and hydraulic systems based on mechanical and physical parameters. In this paper, we describe the corresponding test process and tool chain along with the model validation. We also discuss the advantages and costs of this approach.","PeriodicalId":378465,"journal":{"name":"Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116720752","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

Riding Comfort Simulation with air ride seat for heavy duty vehicle 重型汽车气动座椅乘坐舒适性仿真

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814812

H. Choi, Whe-Ro Lee, Jong-chan Park, Kee-Young Yang

引用次数: 1

Liquid Cooling Applications in Twin Builder- Industrial Paper 液体冷却在双造机-工业造纸中的应用

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814849

Anand Pitchaikani, K. Proelss, Mathias Strandberg, H. Tummescheit, S. Kher

引用次数: 3

A Web Architecture for Modeling and Simulation 用于建模和仿真的Web体系结构

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP18148255

H. Elmqvist, Martin Malmheden, J. Andreasson

引用次数: 3

Assessment of Ride Quality at Lane Change Maneuver Using Virtual Human Driver Model 基于虚拟人驾驶员模型的变道机动平顺性评价

Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018 Pub Date : 2019-02-21 DOI: 10.3384/ECP1814819

Manyong Han, H. Choi, Akinari Hirao, S. Kirschbichler

{"title":"Assessment of Ride Quality at Lane Change Maneuver Using Virtual Human Driver Model","authors":"Manyong Han, H. Choi, Akinari Hirao, S. Kirschbichler","doi":"10.3384/ECP1814819","DOIUrl":"https://doi.org/10.3384/ECP1814819","url":null,"abstract":"The occupant kinematics occurring at a lane change maneuver affects the local ride quality. The precise analysis of the occupant kinematics requires a comprehensive understanding of the physiologic response to human body as well as the vehicle kinematics. A series of vehicle-based tests also confirmed that the alertness level of vehicle occupants is one of the important biomechanical elements. Therefore, it is necessary to have a virtual human body model (HBM), an occupant surrogate at CAE design process, with active muscle forces to represent the reflexive response of human beings. An active human body model that produces joint torques with PID closedloop control as mimicking a bracing action to keep the sitting posture against the external jerk has been developed. In this study, this active human body model is validated against the subject test by simulating the similar occupant kinematics at a single lane change maneuvers. To further verify the use of active HBM as a design tool, an artificial lane change maneuver with a reduced lateral jerk is fabricated and good matching occupant kinematics are predicted.","PeriodicalId":378465,"journal":{"name":"Proceedings of the 2nd Japanese Modelica Conference Tokyo, Japan, May 17-18, 2018","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121069526","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