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Numerical analysis on rigidity of cylindrical honeycomb cores under radial loads 径向载荷作用下圆柱蜂窝芯刚度的数值分析
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.189
Sachiko Ishida, Nur Hanani Binti Ahmad, Koki Oka
{"title":"Numerical analysis on rigidity of cylindrical honeycomb cores under radial loads","authors":"Sachiko Ishida, Nur Hanani Binti Ahmad, Koki Oka","doi":"10.15748/jasse.7.189","DOIUrl":"https://doi.org/10.15748/jasse.7.189","url":null,"abstract":"Although the rigidity of flat honeycomb cores has been previously studied, the rigidity of honeycomb cores with a unique shape has not been extensively investigated. This study aims to determine the rigidity of cylindrical honeycomb cores under static radial loads via linear finite element analysis. Two numerical cylindrical honeycomb models are demonstrated: one satisfies the radial core height alignment condition with distorted core walls; the other cancels the distortion of core walls, but its core height is not completely aligned with the radial direction. The geometrical differences between the models are small. However, our analyses not only reveal clear differences in rigidity but also demonstrate that the differences in rigidity depended on the constraint conditions applied on the models. These results imply that cylindrical honeycomb cores can be applied in the mechanical components that undergo radial loads, such as vehicle tires, robotic rovers, bearings, and liquid containers.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360998","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
Visualization of riverine water and vortex dynamics around the Naruto Strait based on high-resolution ocean simulation and satellite images 基于高分辨率海洋模拟和卫星图像的火影海峡周围河流水和涡旋动力学可视化
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.214
S. Nakada, Ikuya Morimoto, Kyoko Hasegawa, Satoshi Tanaka
{"title":"Visualization of riverine water and vortex dynamics around the Naruto Strait based on high-resolution ocean simulation and satellite images","authors":"S. Nakada, Ikuya Morimoto, Kyoko Hasegawa, Satoshi Tanaka","doi":"10.15748/jasse.7.214","DOIUrl":"https://doi.org/10.15748/jasse.7.214","url":null,"abstract":". This paper addresses a fusion visualization of vorticity fields and riverine water maps by combining satellite-derived ocean-color images and simulated velocity fields using a high-resolution ocean model. Our visualization successfully described the transportation of low-sa-linity riverine water from the Yoshino River through the Naruto Strait. The cloudy white riverine water separated from the river plume in Kii Channel and easily passed through the strait owing to the flood current that formed a mushroom vortex. Meanwhile, the high-salinity clear water from the Harima-Nada Sea could horizontally mix in the strong vorticity fields generated by the ebb current after passing the strait. Our fusion visualization is capable of evaluating the transportation and mixing of riverine water through narrow straits.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361154","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
FDTD Optical Simulation for Organic Solar Cells Incorporated with Antireflection Nanostructures 含抗反射纳米结构有机太阳能电池的FDTD光学仿真
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.82
S. Kubota, K. Kanomata, B. Ahmmad, J. Mizuno, F. Hirose
{"title":"FDTD Optical Simulation for Organic Solar Cells Incorporated with Antireflection Nanostructures","authors":"S. Kubota, K. Kanomata, B. Ahmmad, J. Mizuno, F. Hirose","doi":"10.15748/jasse.7.82","DOIUrl":"https://doi.org/10.15748/jasse.7.82","url":null,"abstract":". To improve the performance of organic photovoltaics, we investigate an integrated device design in which the hybrid antireflection structure, composed of a surface moth-eye nanotexture and a multilayer interference film, is applied with a high-refractive-index glass substrate. The moth eye texture with a relatively long period, which is near the bandgap wavelength of organic semiconductors, is used to enhance light absorption. We perform the optical finite-difference time-domain simulation for the integrated device and find the optimal layer configuration of the multilayer interference film to maximize the photocurrent generation. In addition, we compare the absorption spectrum of the integrated device and that of the device with only moth eye coating, and show that the integrated structure is beneficial to re-alize a high level of absorption relatively uniformly as function of wavelength.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15748/jasse.7.82","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361588","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
Current Distribution Optimization by Using Genetic-Algorithm Based On-Off Method: Application to Pellet Injection System 基于遗传算法的电流分布优化——在颗粒注射系统中的应用
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.201
T. Yamaguchi, H. Ohtani, T. Takayama, A. Kamitani
{"title":"Current Distribution Optimization by Using Genetic-Algorithm Based On-Off Method: Application to Pellet Injection System","authors":"T. Yamaguchi, H. Ohtani, T. Takayama, A. Kamitani","doi":"10.15748/jasse.7.201","DOIUrl":"https://doi.org/10.15748/jasse.7.201","url":null,"abstract":". The current distribution in the electromagnet is optimized by using the genetic-algorithm based on-o ff method so as to maximize the acceleration performance of the Superconducting Linear Acceleration (SLA) system. In the SLA system, a pellet container is accelerated by the interaction between a shielding current density and an applied magnetic field. By using the equivalent-circuit model, the distribution of the shielding current density is approximated as a set of the multiple current loops. In contrast, the current distribution in the electromagnet is represented by means of the on-o ff method. As the method for optimizing the current distribution in the electromagnet, two types of genetic algorithms are adopted. The results of computations show that the pellet velocity for the optimized current distribution is 1.3 times as fast as that for the homogeneous current distribution.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361085","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
Visual Analytics of Causal Relationship Between Fish Catches Data in Adjacent Sea Areas Using Convergent Cross Mapping 基于收敛交叉映射的相邻海域渔获数据因果关系可视化分析
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.226
Chi Zhang, M. Iiyama, K. Koyamada
{"title":"Visual Analytics of Causal Relationship Between Fish Catches Data in Adjacent Sea Areas Using Convergent Cross Mapping","authors":"Chi Zhang, M. Iiyama, K. Koyamada","doi":"10.15748/jasse.7.226","DOIUrl":"https://doi.org/10.15748/jasse.7.226","url":null,"abstract":". In this paper, a visual analytics system that are used to analyze the causal relationship between fishing catches data in adjacent sea areas is proposed. By using the proposed system, the distribution of sea surface temperature is visualized so that the sea areas can be divided accordingly. Next, the daily fishing e ffi ciency in each sea area are calculated and the convergent cross mapping is used to analyze the causality between the data in adjacent sea areas. The experimental results show that the possible causation between the data in two of the divided sub sea areas are detected. In addition, the causal variable can be further identified by referring to the prediction skills.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67361212","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
Large-scale parallel finite element analysis of interface failure in CFRP models CFRP模型界面破坏的大尺度并行有限元分析
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.1
Taichiro Yamaguchi, Gaku Hashimoto, H. Okuda
{"title":"Large-scale parallel finite element analysis of interface failure in CFRP models","authors":"Taichiro Yamaguchi, Gaku Hashimoto, H. Okuda","doi":"10.15748/jasse.7.1","DOIUrl":"https://doi.org/10.15748/jasse.7.1","url":null,"abstract":". Carbon fiber reinforced plastic composites (CFRP) exhibit complex failure mechanisms because they include fiber – matrix and interlaminar interfaces. Detailed modeling of fi-bers, matrices, and interfaces for conducting accurate progressive damage analysis requires large-scale finite element models. We developed parallel finite element analysis software, that can simulate failure of large-scale CFRP models including interfaces using cohesive elements. We verified the software comparing with proven commercial software. In addition, we validated the software using double cantilever beam tests. The simulation result agrees well with the experimental one. The software can analyze progressive interface damage of large-scale models with more than 77 million degrees of freedom.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15748/jasse.7.1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360318","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
Finite volume computation for the non-stationary probability density function of an impulsively controlled 1-D diffusion process 脉冲控制一维扩散过程非平稳概率密度函数的有限体积计算
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.262
Y. Yaegashi, H. Yoshioka, M. Tsujimura, M. Fujihara
{"title":"Finite volume computation for the non-stationary probability density function of an impulsively controlled 1-D diffusion process","authors":"Y. Yaegashi, H. Yoshioka, M. Tsujimura, M. Fujihara","doi":"10.15748/jasse.7.262","DOIUrl":"https://doi.org/10.15748/jasse.7.262","url":null,"abstract":"We derive a Fokker Planck Equation (FPE) governing probability density functions (PDFs) of an impulsively controlled 1-D diffusion process in seasonal population management problems. Two interventions are considered: perfect (completely controllable) and imperfect interventions (not completely controllable). The FPE is an initialand boundary-value problem subject to a non-local boundary condition along a moving boundary. We show that an finite volume method (FVM) with a domain transformation realizes a conservative discretization for the FPE. We demonstrate that the computed PDFs with the FVM and those with a Monte Carlo method agree well.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360864","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
Development of logistics library for disaster relief using electric circuit model 利用电路模型开发救灾物流图书馆
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.242
Yorvarak Chata, W. T. L. S. Fernando, Kazumasa Takahashi, T. Kikuchi, N. Harada, K. Sano, T. Sasaki
{"title":"Development of logistics library for disaster relief using electric circuit model","authors":"Yorvarak Chata, W. T. L. S. Fernando, Kazumasa Takahashi, T. Kikuchi, N. Harada, K. Sano, T. Sasaki","doi":"10.15748/jasse.7.242","DOIUrl":"https://doi.org/10.15748/jasse.7.242","url":null,"abstract":". In this study, a logistics network simulator based on the similarity between logistic and electric behaviors was considered. To reduce the complexity of practical electrical circuit development, the developed logistics model was converted to an electrical circuit model for analysis. Basic logistics networks such as centralized, de-centralized, and complex models were simulated using the well-defined electrical circuit models. The results show that theoretical logistical behavior can be simulated using electrical circuit models and converted simulation block models, confirming the similarity between flow of logistics and current distribution in electrical circuit.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360817","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
The Effects of Smart Tolling for the Improvement of Traffic Flow on the Seoul Tollgate with ARENA 基于ARENA的智能收费对首尔收费站交通流改善的影响
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2020-01-01 DOI: 10.15748/jasse.7.279
Seung-Min Noh, Ho-Seok Kang, Seong-Yong Jang
{"title":"The Effects of Smart Tolling for the Improvement of Traffic Flow on the Seoul Tollgate with ARENA","authors":"Seung-Min Noh, Ho-Seok Kang, Seong-Yong Jang","doi":"10.15748/jasse.7.279","DOIUrl":"https://doi.org/10.15748/jasse.7.279","url":null,"abstract":". The effects of traffic flow improvements were compared in terms of real traffic data by using the level of congestion, throughput, and average duration time criteria. A current situation and a situation with smart tolling were considered in order to ensure the reliability of the results. The simulation consisted of eight scenarios, the error rates were checked with 30 replications, and the error rates were noted to be lower than 0.5%. The scenarios were catego-rized by vehicle speeds that could affect subsequent vehicles. The smart tolling model was better than the current model overall. In particular, the results of comparing lifelike scenario 1 and scenario 8 with smart tolling are key. The results showed that the level of congestion and average duration time could be decreased to approximately 46%. With regard to the results, there are significant impacts on improving traffic flow while maintaining five lanes, unlike in the current model.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67360944","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
Topology Optimization of Metamaterial Using Gaussian-Basis Functions 基于高斯基函数的超材料拓扑优化
IF 0.5
Journal of Advanced Simulation in Science and Engineering Pub Date : 2019-03-15 DOI: 10.15748/JASSE.6.149
Ye Fangzhou, H. Igarashi
{"title":"Topology Optimization of Metamaterial Using Gaussian-Basis Functions","authors":"Ye Fangzhou, H. Igarashi","doi":"10.15748/JASSE.6.149","DOIUrl":"https://doi.org/10.15748/JASSE.6.149","url":null,"abstract":"This paper presents topology optimization of electromagnetic metamaterial using the on/off method based on the Normalized Gaussian network (NGnet). In this work, the conductor shape printed on a dielectric slab of fixed dimensions is optimized to have a negative macroscopic permeability at a prescribed frequency band for realization of metamaterial. It is shown that the proposed method successfully provides the metamaterial that works at any desired operating frequency.","PeriodicalId":41942,"journal":{"name":"Journal of Advanced Simulation in Science and Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2019-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.15748/JASSE.6.149","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44006603","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
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