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复杂道路网中一种新的最速调运方法
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作者 马和邦 陈孝思 《物流技术》 1996年第5期8-10,共3页
本文基于交通流平衡分配原理,结合道路交通特点.介绍复杂道路网中一种新的最速调运方法并给出具体例子。
关键词 时间优效 道路网 复杂道路网 交通运输 调运方法
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Optimized vehicle scheduling and filling model based on effective space and integrated solving algorithm
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作者 赵鹏 《Journal of Chongqing University》 CAS 2007年第3期172-176,共5页
We established an integrated and optimized model of vehicle scheduling problem and vehicle filling problem for solving an extremely complex delivery mode-multi-type vehicles, non-full loads, pickup and delivery in log... We established an integrated and optimized model of vehicle scheduling problem and vehicle filling problem for solving an extremely complex delivery mode-multi-type vehicles, non-full loads, pickup and delivery in logistics and delivery system. The integrated and optimized model is based on our previous research result-effective space method. An integrated algorithm suitable for the integrated and optimized model was proposed and corresponding computer programs were designed to solve practical problems. The results indicates the programs can work out optimized delivery routes and concrete loading projects. The model and algorithm have many virtues and are valuable in practice. 展开更多
关键词 vehicle scheduling vehicle filling integration and optimization solving algorithm
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VARIABLE FEEDRATE INTERPOLATION OF NURBS TOOLPATH WITH GEOMETRIC AND KINEMATICAL CONSTRAINTS FOR FIVE-AXIS CNC MACHINING 被引量:1
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作者 SUN Yuwen ZHOU Jianfeng GUO Dongming 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第5期757-776,共20页
Variable feedrate interpolation algorithms for five-axis parametric toolpath are very promising but still rather limited currently.In this paper,an off-line feedrate scheduling method of dual NURBS curve is presented ... Variable feedrate interpolation algorithms for five-axis parametric toolpath are very promising but still rather limited currently.In this paper,an off-line feedrate scheduling method of dual NURBS curve is presented with geometric and kinematical constraints.For a given dual parametric curve,the feedrates of sampling points are first scheduled sequent with confined feedrate of cutter tip and machine pivot,chord error,normal acceleration and angular feedrate.Then,the feedrate profiles of angular feed acceleration sensitive regions of the path are adjusted using a bi-directional scanning algorithm.After that,a linear programming method is used to adjust the feedrate profiles of linear feed acceleration sensitive regions and control the linear feed acceleration of both cutter tip and machine pivot within preset values.Further,a NURBS curve is used to fit the feedrates of sampling points.Finally,illustrative examples are carried out to validate the feasibility of the proposed feedrate scheduling method.The results show that the proposed method has the ability of effectively controlling the angular feed characters of cutter axis as well as the chord error and linear feed characters of cutter tip and machine pivot,and it has potential to be used in high accuracy and high quality five-axis machining. 展开更多
关键词 Feedrate interpolation five-axis machining NURBS tool path.
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A new power coordination method for islanded micro-grid basing on multi-agent system
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作者 YIN XiaoQi DING Ming 《Science China(Technological Sciences)》 SCIE EI CAS CSCD 2017年第6期946-952,共7页
Multi-agent system (MAS) can provide flexible and intelligent control for micro-grid (MG). In this paper, a new power coordination method of MAS is presented for MG. New way for dispatching controllable generations (... Multi-agent system (MAS) can provide flexible and intelligent control for micro-grid (MG). In this paper, a new power coordination method of MAS is presented for MG. New way for dispatching controllable generations (CGs) and direct cooperation between storages and CGs are designed. Real-time emulations of the coordination, including the usage of both CGs and storages, have been carried out in islanded situation basing on this method, and much higher performance than conventional method is found. 展开更多
关键词 micro-grid multi-agent system (MAS) active power coordination high performance
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