发布求助
文献互助 智能选刊 最新文献

Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing最新文献

筛选
英文 中文
General-Purpose Expression of Structural Connectivity in the Parallel Solution Scheme and Its Application 结构连通性的通用表达及其应用
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.789
D. Isobe, A. Yagi, Shunsuke Sato
{"title":"General-Purpose Expression of Structural Connectivity in the Parallel Solution Scheme and Its Application","authors":"D. Isobe, A. Yagi, Shunsuke Sato","doi":"10.1299/JSMEC.49.789","DOIUrl":"https://doi.org/10.1299/JSMEC.49.789","url":null,"abstract":"In this paper, an algorithm for the general-purpose expression of structural connectivity is developed and implemented into the parallel solution scheme, which was previously proposed and successively applied to the feed-forward control of link mechanisms under various boundary conditions. The parallel solution scheme calculates the inverse dynamics of link systems by using a matrix-form equation separated into individual terms of di ff erent parameters. Therefore, the connectivity of link members can be expressed explicitly by one of the matrices, the member length matrix. Generated forces for the control can also be considered, without using any Jacobian matrices, simply by adding the values into one of the components in the equation, the vector related to nodal forces. We describe the forming process of the member length matrix and verify the validity of the calculated torque values, by presenting simple numerical results and experimental results for a structure-varying link system. We also perform a force control experiment on a quick motion, two-arm link system holding an object, where both generated forces and dynamical e ff ects should be considered. Numerical and experimental results show the validity and the extensive ability of the scheme.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134228564","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: 11
Development of Nonpowered Lift for Wheelchair Users 轮椅使用者无动力升降机的发展
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.821
Yusuke Kobayashi, H. Seki, Y. Kamiya, M. Hikizu, Mitsuyoshi Maekawa
{"title":"Development of Nonpowered Lift for Wheelchair Users","authors":"Yusuke Kobayashi, H. Seki, Y. Kamiya, M. Hikizu, Mitsuyoshi Maekawa","doi":"10.1299/JSMEC.49.821","DOIUrl":"https://doi.org/10.1299/JSMEC.49.821","url":null,"abstract":"Wheelchair users need lifts to climb up/down steps at entrances with limited space. Lifts driven by motors or hydraulic equipment are large and expensive. They also need switches to start/stop actuators. The aim of our study is to develop a compact nonpowered lift for wheelchair users. We propose a lift driven by the wheels of a wheelchair on it. Coil springs are installed in the lift to decrease driving torque and some mechanisms are attached to the lift so that the small front casters of a wheelchair can cross the lift stage and the large rear wheels can drive the lift. After the lifting speed, driving force, and conditions for driving the rollers were analyzed and a prototype lift was designed and fabricated. The developed lift succeeded in raising a wheelchair with a user, and a continuous motion of a wheelchair from entering to exiting the stage was executed smoothly.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133028391","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
An Active Micro Vibration Isolator with Zero-Power Controlled Magnetic Suspension Technology 采用零功率控制磁悬浮技术的主动微振隔离器
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.719
M. Hoque, M. Takasaki, Y. Ishino, Hirohisa Suzuki, T. Mizuno
{"title":"An Active Micro Vibration Isolator with Zero-Power Controlled Magnetic Suspension Technology","authors":"M. Hoque, M. Takasaki, Y. Ishino, Hirohisa Suzuki, T. Mizuno","doi":"10.1299/JSMEC.49.719","DOIUrl":"https://doi.org/10.1299/JSMEC.49.719","url":null,"abstract":"In this paper, a three-degree-of-freedom vibration isolation system using active zeropower controlled magnetic suspension is presented in order to isolate vibrations transmitted from the ground and to attenuate the effect of direct disturbances on the table. The zerocompliance of the isolator for direct disturbances was realized by connecting a conventional mechanical spring in series with a negative spring produced by an active magnetic suspension mechanism. In this work, each degree-of-freedom-of-motion of the vibration isolator is treated analytically and it is shown that the developed system is capable to generate infinite stiffness in each mode. Experimental studies have been conducted as well to measure the effectiveness of the isolator under both types of disturbances. Further improvements for the developed system as well as the control techniques are also discussed.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123921684","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: 19
Towards Real-Time Global Localization in Dynamic Unstructured Environments 面向动态非结构化环境的实时全局定位
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.905
Kanji Tanaka, E. Kondo
{"title":"Towards Real-Time Global Localization in Dynamic Unstructured Environments","authors":"Kanji Tanaka, E. Kondo","doi":"10.1299/JSMEC.49.905","DOIUrl":"https://doi.org/10.1299/JSMEC.49.905","url":null,"abstract":"Global localization is the problem in which a mobile robot has to estimate the self-position with respect to an a priori given map as it navigates without using any a priori knowledge of the initial self-position. Previous studies on global localization mainly focused on static environments, where the a priori map is almost correct. On the other hand, in dynamic environments, there are several sources of computational complexity. For example, not only the self-position but also the map should be estimated due to the map errors. The main contribution of this paper is to address such computational complexity by decomposing our global localization problem into two smaller subproblems, and solving the subproblems in a practical computation time. Also, we demonstrate the robustness and the efficiency of the proposed method in various large and complex environments.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132069348","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
Combination of Various Weighting Functions to Improve Modal Curve Fitting for Actual Mechanical Systems 结合各种加权函数改进实际机械系统的模态曲线拟合
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.764
M. Rusli, M. Okuma, T. Nakahara
{"title":"Combination of Various Weighting Functions to Improve Modal Curve Fitting for Actual Mechanical Systems","authors":"M. Rusli, M. Okuma, T. Nakahara","doi":"10.1299/JSMEC.49.764","DOIUrl":"https://doi.org/10.1299/JSMEC.49.764","url":null,"abstract":"Modal curve fitting methods on frequency domain are based on the least square method to estimate the modal parameters from frequency response functions (FRFs in brief) of test structures. In order to minimize the least square errors between experimental and estimated FRFs, several kinds of weighting functions were proposed and widely applied in practical use. However, using the same weighting function in modal curve fitting for a set FRFs of test structure often makes the results of the FRFs of some measurement points be fitted with good accuracy but other ones be not. In this paper, the authors propose the combination use of various kinds of weighting functions in least square process of modal curve fitting methods to deal with the measurement data of actual and complex mechanical systems. This method automatically selects and applies the most appropriate weighting function to the FRF of each measurement point by comparing the minimum total relative mean square error (RMSE). The case study shows that the proposed idea allows the modal curve fitting method puts better curve fitting results out so that more accurate mathematical model will be obtained.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124997700","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: 3
Job Shop Scheduling Focusing on Role of Buffer 基于缓冲区作用的作业车间调度
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.950
R. Hino, T. Kusumi, J. Yoo, Y. Shimizu
{"title":"Job Shop Scheduling Focusing on Role of Buffer","authors":"R. Hino, T. Kusumi, J. Yoo, Y. Shimizu","doi":"10.1299/JSMEC.49.950","DOIUrl":"https://doi.org/10.1299/JSMEC.49.950","url":null,"abstract":"A scheduling problem is formulated in order to consistently manage each manufacturing resource, including machine tools, assembly robots, AGV, storehouses, material shelves, and so on. The manufacturing resources are classified into three types: producer, location, and mover. This paper focuses especially on the role of the buffer, and the differences among these types are analyzed. A unified scheduling formulation is derived from the analytical results based on the resource’s roles. Scheduling procedures based on dispatching rules are also proposed in order to numerically evaluate job shop-type production having finite buffer capacity. The influences of the capacity of bottle-necked production devices and the buffer on productivity are discussed.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125010443","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: 4
A Decomposition Based Design Method Coordinated by Disciplinary Subspace Optimization 基于分解的学科子空间优化协同设计方法
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-15 DOI: 10.1299/JSMEC.49.935
Jongsoo Lee, Heeseok Jeong
{"title":"A Decomposition Based Design Method Coordinated by Disciplinary Subspace Optimization","authors":"Jongsoo Lee, Heeseok Jeong","doi":"10.1299/JSMEC.49.935","DOIUrl":"https://doi.org/10.1299/JSMEC.49.935","url":null,"abstract":"The paper describes the development of a decomposition based design (DBD) method using optimal sensitivity information with respect to coupled or interdisciplinary design variables. A multidisciplinary design system considered in the present study is decomposed into a number of subspaces based on their own design objectives and constraints associated with engineering physics. The coupled relations among subspaces are identified by interdisciplinary design variables. Subsystem level optimization is performed in parallel, and the system level coordination is determined by the first order optimal sensitivities of subsystem level objective functions with respect to interdisciplinary design variables. The central of the present work focuses on the formulation of system level coordination strategy and its capability in decomposition based design. A fluid-structure coupled design problem is explored as a test-bed to verify the proposed DBD method.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115120668","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: 4
Design and performance analysis of an axial-flux disk-type switched reluctance motor for hybrid scooters 混合动力滑板车轴向磁通盘式开关磁阻电机设计与性能分析
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-09-01 DOI: 10.1299/JSMEC.49.882
Jian-Feng Tsai, Yon-Ping Chen
{"title":"Design and performance analysis of an axial-flux disk-type switched reluctance motor for hybrid scooters","authors":"Jian-Feng Tsai, Yon-Ping Chen","doi":"10.1299/JSMEC.49.882","DOIUrl":"https://doi.org/10.1299/JSMEC.49.882","url":null,"abstract":"Switched reluctance motors (SRM) possess several superiorities such as simplicity in structure, ruggedness, and good reliability, which make it viable for the transportation applications. In this paper, an axial-flux disk-type switched reluctance motor (DSRM) for hybrid scooters is proposed. The DSRM can be used to drive the scooter and as an engine starter simultaneously. Moreover, the torque density of axial flux motors is more superior to that of radial flux motors in this application. Instead of utilizing FEM, the permeance model is employed to model the DSRM. With the analytical expressions, the output torque and current can be obtained dynamically and the geometries of the DSRM can be further optimized. Finally, the hardware-in-the-loop (HIL) simulation environment is constructed to perform full system simulation and the DSRM is shown to be capable of being an auxiliary power source for hybrid scooters.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130420735","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: 6
Molecular Dynamics Analysis of Elementary Process of Coating by a High-Temperature, High-Speed Droplet 高温高速熔滴涂覆基本过程的分子动力学分析
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-06-15 DOI: 10.1299/JSMEC.49.505
J. Shimizu, E. Ohmura, Yoshifumi Kobayashi, S. Kiyoshima, H. Eda
{"title":"Molecular Dynamics Analysis of Elementary Process of Coating by a High-Temperature, High-Speed Droplet","authors":"J. Shimizu, E. Ohmura, Yoshifumi Kobayashi, S. Kiyoshima, H. Eda","doi":"10.1299/JSMEC.49.505","DOIUrl":"https://doi.org/10.1299/JSMEC.49.505","url":null,"abstract":"Three-dimensional molecular dynamics simulation was conducted to clarify at an atomic level the flattening process of a high-temperature droplet impacting a substrate at high speed. The droplet and the substrate were assumed to consist of pure aluminum, and the Morse potential was postulated between a pair of aluminum atoms. By visualizing the analytical results, the processes of melting and solidification, temperature distribution, deformation velocity, and potential energy of atoms of the droplet were clarified. The following conclusions were obtained: (1) Transfer of the droplet atoms to the horizontal direction in the flattening process increases in proportion to the horizontal distance from the central axis of the droplet. (2) The increase of the flattening ratio of the droplet ends as soon as solidification of the droplet starts from the outside edge of the droplet. This behavior indicates the end of flattening.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114495160","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
A Resource Capability Model to Support Product Family Analysis 支持产品族分析的资源能力模型
Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing Pub Date : 2006-06-15 DOI: 10.1299/JSMEC.49.568
J. Nielsen, F. Kimura
{"title":"A Resource Capability Model to Support Product Family Analysis","authors":"J. Nielsen, F. Kimura","doi":"10.1299/JSMEC.49.568","DOIUrl":"https://doi.org/10.1299/JSMEC.49.568","url":null,"abstract":"In automotive industry there is a growing concern for the total economy of a manufacturing system throughout its life-cycle. In order to decrease its affect on product cost a better utilization of the manufacturing system is necessary. Product family analysis is a means to group products with common manufacturing aspects and analyze its manufacturability in a possible or existing manufacturing solution. The aim of this research is to provide support for product family analysis by enabling reasoning about resource’s capability, i.e. what a resource can do and how well it can do it.","PeriodicalId":151961,"journal":{"name":"Jsme International Journal Series C-mechanical Systems Machine Elements and Manufacturing","volume":"90 46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129891796","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: 8
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信