{"title":"A new formulation for indeterminate contact forces in rigid-body statics","authors":"Y. Maeda, Y. Goto, S. Makita","doi":"10.1109/ISAM.2009.5376952","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376952","url":null,"abstract":"Friction forces play an important role in analysis of robotic contact tasks. In most of related studies, only “local” constraint on friction forces imposed by, for example, Coulomb's law is considered. However, when contact forces are indeterminate, such local constraint is not enough to assess possible friction forces appropriately. Although Omata and Nagata derived additional “global” constraint on indeterminate friction forces from rigid-body kinematics, it is not accurate in some cases. Thus we propose a modified formulation for indeterminate friction forces in rigid-body statics in this paper. It solves two major problems in Omata and Nagata's formulation. Its validity is successfully demonstrated in numerical examples for evaluation of the robustness of grasping.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125167207","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}
T. Arai, F. Duan, R. Kato, J. T. Tan, M. Fujita, M. Morioka, S. Sakakibara
{"title":"A new cell production assembly system with twin manipulators on mobile base","authors":"T. Arai, F. Duan, R. Kato, J. T. Tan, M. Fujita, M. Morioka, S. Sakakibara","doi":"10.1109/ISAM.2009.5376915","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376915","url":null,"abstract":"Since cell production system meets the frequent change of products, it has excluded automatic assembly systems. However, its benefits mainly depend on the operators' ability. As wage level of the operators stays high and availability of expertise turns difficult in Japan, a new assembly system has been developed since 2006 so as to combine both the competitiveness of human workers and automatic machinery. The characteristics consist of three key technologies: collaboration between a human operator and twin manipulators on a mobile base, information/physical support to an operator, and a safety system for the collaboration. The developed system improves flexibility and productivity both in frequent changes of production about complicated wire harness assembly.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121373544","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}
{"title":"2D caging manipulation by robots and walls","authors":"R. Yokoi, Tatsuya Kobayashi, Y. Maeda","doi":"10.1109/ISAM.2009.5376936","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376936","url":null,"abstract":"In this paper, we propose a new robotic manipulation: caging manipulation by robots and walls. Caging is a method to make an object inescapable from a closed region by rigid bodies. Previous studies use only robots for caging, while we use walls as well. First, we formulate 2D caging with the environment such as walls. Secondly, we derive the caging manipulability condition. The manipulability problem is trivial in robot-only caging, but crucial in our cases. Finally, we present a method to plan 2D caging manipulation of a circular object by circular robots and straight walls.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129788762","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}
{"title":"Modeling of two-fingered pivoting skill based on CPG","authors":"Y. Maeda, T. Ushioda","doi":"10.1109/ISAM.2009.5376932","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376932","url":null,"abstract":"Two-fingered pivoting is a typical example of human dexterous manipulation interacting adaptively with the environment. In this paper, we construct a skill model of two-fingered pivoting manipulation based on CPG (Central Pattern Generator) with five neurons. The CPG drives a virtual hand, which consists of a wrist, a palm, a thumb and an index finger, rhythmically to achieve robust pivoting through the interaction with the environment. Its adaptability is demonstrated in dynamic simulation of box pivoting. The virtual hand successfully adapts to environmental changes such as sudden decrease of the friction coefficient of the floor.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114312858","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}
M. Fujita, R. Kato, Kei Watanabe, J. T. Tan, T. Arai
{"title":"Operators' mental strain induced by information support in cell production","authors":"M. Fujita, R. Kato, Kei Watanabe, J. T. Tan, T. Arai","doi":"10.1109/ISAM.2009.5376904","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376904","url":null,"abstract":"Human-centered characteristic of cell production systems may meet the diversified production and quantity requirements. However, there are two problems: firstly, assembly efficiency depends on operator's individual skill; secondly, it may need high concentration of an operator to cause mental strain to them. Information support provides a solution to improve operator's operation performance and to reduce his/her mental strain. Appropriate density of information should be given to an operator to prevent excessive mental stress on him/her. In this study, operators' performance such in term of and assembly errors is evaluated when an information support system is introduced. Mental stress is also evaluated by physiological parameters such as skin impedance, salivary alpha-amylase, and critical fusion frequency (CFC) to investigate effective density of information. The experiment results show that as information density increase, the induced mental strain increased. An effective density of information is obtained from the experiments to minimize assembly error. The results are valuable to estimate effective information density in information support system.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"18 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122959779","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}
{"title":"Robot programming by human demonstration with random pattern projection","authors":"Y. Goto, Takuya Shimada, Y. Maeda","doi":"10.1109/ISAM.2009.5376948","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376948","url":null,"abstract":"In this paper, we propose a simple and easy method for robot teaching. It is based on “teaching-by-showing” technique with a structured light approach. In this method, the first step of the teaching procedure is the camera and projector calibration. The second step is a demonstration of manipulation of an object by a human operator in front of the robot with random pattern projection. The third step is obtaining range images of the object with the help of the projected pattern, and calculating the position and orientation of the object from the range images. In this way, we can obtain the demonstrated path of the object and a robot motion to reproduce it. We examined the accuracy of range images and obtained positions and orientations of the object. In teaching experiments, the robot reproduced a path demonstrated by a human operator successfully by using our proposed method.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116243662","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}
{"title":"Optimal outsourcing for intellectual property protection and production cost minimization","authors":"John P. Kim, K. Hamza, K. Saitou","doi":"10.1109/ISAM.2009.5376919","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376919","url":null,"abstract":"This paper presents a methodology for optimal outsourcing of products. Outsourcing of products can have the advantage of reducing the production cost, but often causes a risk that important technology may leak and get used by competitors. To help reduce the risk of intellectual property (IP) leakage, a model proposed in this paper assumes that it is possible to separate some of the important geometrical features on some of the product parts that are outsourced, and then manufacture them in-house. The model estimates the fraction of IP-value that is subject to risk of leakage based on patent claims and how they relate to the outsourced parts and/or features. Production cost is modelled by assuming a base cost for manufacturing parts in-house, and then a discount rate is applied if the decision to outsource is made. Separation of geometrical features from manufactured parts introduces additional cost, which is modelled as an overhead if the decision to separate features is made. The outsourcing management process is then viewed as a two-objective problem, with the objectives being the minimization of both the fraction of IP-value at risk of leakage, as well as the production cost. A case study of an auto-slide-hinge mechanism is presented, in which the two-objective optimization problem is transformed into a single-objective constrained problem. Genetic algorithm is then applied iteratively on the problem in order generate the Pareto-plot that visualizes the trade-offs between the two objectives.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123548232","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}
{"title":"Mixed-Model Sequencing Problem with overload minimization considering workstations dependencies","authors":"J. Bautista, R. Suárez","doi":"10.1109/ISAM.2009.5376945","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376945","url":null,"abstract":"This paper reviews the formulation of the mixed model sequencing problem with workload minimization (MMSP-W). Two significative models already presented in the literature are describe, showing that they are valid for the case of parallel workstations, but do not properly solve the case of serial workstations. After that, a new model is introduced that is valid for the case of serial workstations. An example is used to illustrate the performance of all the models, and a computational experience was done to verify the applicability of the proposed model using the solver CPLEX and a set of problem instances of small dimension adapted from the literature.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122541179","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}
Sunghyun Kim, Jongkwan Lee, Hee-Seong Park, Hyojik Lee, B. Park, Kiho Kim, Ho-dong Kim
{"title":"Designing a simulator for use in the Pyroprocessing","authors":"Sunghyun Kim, Jongkwan Lee, Hee-Seong Park, Hyojik Lee, B. Park, Kiho Kim, Ho-dong Kim","doi":"10.1109/ISAM.2009.5376976","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376976","url":null,"abstract":"In this paper, we describe the design of a simulator for use in Pyroprocessing technology development. This simulator is a virtual facility of a Pyroprocessing mock-up facility to be constructed later. The simulator will be designed to include all the Pyroprocessing equipment, utilities, remote maintenance and handling devices and auxiliary devices or tools, in the form of virtual models which are necessary for the Pyroprocessing technology implementation in a virtual facility environment. It will provide an efficient means for simulating and verifying the conceptual design, design developments, arrangements, and rehearsal of the Pyroprocessing equipment from the viewpoint of remote operation and maintenance by use of its various virtual functions. It will also enable the trial and simulation of the Pyroprocessing technology's development in a virtual process environment in advance. We present the current status of the simulator development and also demonstrate a case study of the simulator performed in its current development stage.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129264652","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}
K. Rabenorosoa, C. Clévy, P. Lutz, S. Bargiel, C. Gorecki
{"title":"A micro-assembly station used for 3D reconfigurable hybrid MOEMS assembly","authors":"K. Rabenorosoa, C. Clévy, P. Lutz, S. Bargiel, C. Gorecki","doi":"10.1109/ISAM.2009.5376922","DOIUrl":"https://doi.org/10.1109/ISAM.2009.5376922","url":null,"abstract":"Micro-assembly has been identified to be a critical technology in the microsystems technology and nanotechnology. The increasing needs of MOEMS (micro-opto-electro- mechanical systems) for the microsystems conducts to development of new concepts and skilled micro-assembly stations. This paper presents a 3D micro-assembly station used for the reconfigurable free space micro-optical benches (RFS-MOB) which are a promising type of MOEMS. The designed parts of RFS-MOB are assembled by using the developed micro-assembly station. Experimental results are shown and validate the effectiveness of the micro-assembly station and the micro-assembly strategies.","PeriodicalId":418393,"journal":{"name":"2009 IEEE International Symposium on Assembly and Manufacturing","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129665145","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}