Performance Management of Communication Networks for Computer Integrated Manufacturing

Lee, S.; Lee, S. H.; Lee, K. C.; Choi, Junho; Lee, M. H.

doi:10.1007/s001700170020

Cited by 10 publications

(6 citation statements)

References 7 publications

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“…The scalability studies are conducted on "ShenWei I," which demonstrates the effectiveness of our parallel solver, as discussed elsewhere [4][5][6]. It is a problem of modal analysis for a new type of Compressed Natural Gas (CNG) city bus as shown in Fig.…”

Section: Application and Effect Of Parallel Modal Analysismentioning

confidence: 99%

A parallel solver for structural modal analysis based on commercial FEA code

Jin

et al. 2004

Int J Adv Manuf Technol

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This paper describes one promising parallel algorithm and software system for structural modal analysis. The supercomputer "ShenWei I" is taken as the parallel computing environment and the finite element code MSC.NASTRAN is taken as the development platform. The purpose of the research and development is to make the dominating computing work of modal analysis parallelized, and, moreover, make the parallel solver tightly coupled with original analysis code. The integrated software system includes a serial FEA (Finite Element Analysis) and parallel solver and has a friendly interface. It can significantly improve the scale and velocity of structural modal analysis. It contributes to dynamic performance analysis for massive structures.

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Section: Application and Effect Of Parallel Modal Analysismentioning

confidence: 99%

A parallel solver for structural modal analysis based on commercial FEA code

Jin

et al. 2004

Int J Adv Manuf Technol

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“…Transmitting time must be reduced, because it affects adversely the operation of the system. The elapsed time during the data transmission is called network delay and must be taken into account in system design [6], [7] Profibus has an important advantage in data transmission and so it uses in various endustrial applications such as image transmission and robotics [8]- [10]. Furthermore, in Profibus network systems, various control methods like PID, Fuzzy Logic and Genetic Algorithm are implemented easily [11], [12].…”

Section: Introductionmentioning

confidence: 99%

Controlling of a 3-Phased Asynchronous Motor over Profibus Network

Yılmaz¹,

Korkmaz²,

Sönmez³

et al. 2016

IJEEE

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In this study, Profibus is used in remotecontrolling of an Asynchronous Motor (AM) which is an industrial automation network. Therefore, the asynchronous motor torque and speed control are examined. In controlling the AM, the feedback data and control signals are conducted through a network. In this design, a real time control system has been used and thus, the desired working conditions can be remote-controlled. The used Profibus network provides a high-speed data transfer. This characteristic is important in applications that require sensitive control and the control mistakes stemming from network delay have been minimized. In this study moreover, the designed system has provided a control that is independent from the AM hardware.  been done via with Profibus network. The System consists of Master PLC (Programmable Logic Controllers), 3-phased asynchronous motor, driver and Profibus network that contain the physical structure and protocols that provide the communication among the software. The control of asynchronous motor has been designed as having feedbacks. Profibus network provides high-speed data transfer. This characteristic is important in reducing network delay [15]. In this study, reduction of network delay has to be made precise control.In this study, for the speed and moment control of the AM, the AM is run in the desired speed value by entering the desired speed value or the frequency when the moment is stable by using frequency converter over the Profibus network structure. The speed, voltage and current info of the AM are obtained over the network as real time and assessed, then sent back to the motor over the same network, thus controlling it.

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“…When a globoidal cam is machining on a machine tool, many factors would inevitably contribute to the profile error. At present, two methods have been applied for solving the profile error of a globoidal cam: the vector method [1,2] and the normal line method [3][4][5][6][7][8][9][10][11]. According to the vector method, at first, the deviation vector, which was a vector from a point on the desired surface to the corresponding point on the surface actually machined, was determined; then the unit normal vector of the corresponding point on the surface actually machined was determined; after that the projection of the deviation vector on the normal vector was determined.…”

Section: Introductionmentioning

confidence: 99%

Study on Machining Error of Globoidal Cam Profile Resulting from Rotational Deviation of Location of Part in Machining

Zhang

Shang

2012

AMR

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The profile error of a globoidal cam, resulting from rotational deviation of the location of the part in machining on a NC machine tool which has two coordinated rotational axes, is studied. A novel method of solving profile error is presented. According to this method, the minimum distance from a point on the profile actually machined to the desired profile is referred to as the profile error. Then, the mathematic model of profile error resulting from the rotational deviation of the part to be machined is built. After that, the type TC40 globoidal cam is employed as an example to solve the machining error. And the experiment of machining a globoidal cam is done. The experimental result is compared with the computed result, and they are mostly identical.

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Performance Management of Communication Networks for Computer Integrated Manufacturing

Cited by 10 publications

References 7 publications

A parallel solver for structural modal analysis based on commercial FEA code

A parallel solver for structural modal analysis based on commercial FEA code

Controlling of a 3-Phased Asynchronous Motor over Profibus Network

Study on Machining Error of Globoidal Cam Profile Resulting from Rotational Deviation of Location of Part in Machining

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