While taking steps towards automating the process of optimization of parameters in the design of depressed collectors, we have added some features to our library of CAD codes. These features will be presented with exa...
ISBN:
(纸本)0780365135
While taking steps towards automating the process of optimization of parameters in the design of depressed collectors, we have added some features to our library of CAD codes. These features will be presented with examples for: optimizing depressed potentials and iterative simulation of interacting trajectories of primary and secondary electrons.
computergraphics and computer-aideddesign communities prefer piecewise spline patches to represent surfaces. But keeping the smoothness between the adjacent patches is a challenging task. In this paper, we present a...
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computergraphics and computer-aideddesign communities prefer piecewise spline patches to represent surfaces. But keeping the smoothness between the adjacent patches is a challenging task. In this paper, we present a method for stitching several surface patches, which is a key step in complicated surface modeling, with polynomial splines over hierarchical T-meshes (PHT-spline for short). The method is simple and can be easily applied to complex surface modeling. With the method, spline surfaces can be constructed efficiently and adoptively to fit genus-zero meshes after their spherical parameterization is obtained, where only small sized linear systems of equations are involved.
In the study of computer-aideddesign of an antiaircraft gun system, by using Visual C++6.0 in the second development of Autocad 2010, it solves the technical difficulties in applying ARX application program in the pr...
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The problem, which is solved in this paper, is the application of computergraphics and stereo-projection in the imaging emulation and aberration rectification field of optics. The mathematical model of stereo-project...
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The problem, which is solved in this paper, is the application of computergraphics and stereo-projection in the imaging emulation and aberration rectification field of optics. The mathematical model of stereo-projection is built. After analysing the characteristics and rules of aberration, The mathematical model of a typical astigmatism is built by lofted surfaces method. Finally, 3D stereo visualization emulating display and the trend to rectifying aberration are achieved. The issue, which is explored and settled in this paper, can be used in the visualization design, aberration rectification, measurements and teaching of 3D optics system.
To increase the length of life and the stability of wind turbines, the output power of wind turbines should be restricted under the rated power. Especially, in order to guarantee the restriction, it is essential to us...
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ISBN:
(纸本)9781467381833
To increase the length of life and the stability of wind turbines, the output power of wind turbines should be restricted under the rated power. Especially, in order to guarantee the restriction, it is essential to use a pitch control above the defined rated wind speed. This paper presents a design method of a collective pitch controller for wind turbines using time-delay estimation (TDE). TDE estimates nonlinear and unknown terms in system dynamics. Time-delay Control (TDC), which is a control method based on TDE, uses the estimated information to track the desired trajectory. The pitch control technique with TDC is operated in all operating regions. The effectiveness of the proposed controller is evaluated with computer simulations using FAST aeroelastic computeraided engineering tool. And these simulations are conducted by comparing with conventional PI controller.
The progress of computeraided testing technology brings new development opportunity of aero-engine synthetic test. In order to improve aero-engine synthetic test level, a taken aero-engine synthetic test system is de...
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ISBN:
(纸本)9781467391665
The progress of computeraided testing technology brings new development opportunity of aero-engine synthetic test. In order to improve aero-engine synthetic test level, a taken aero-engine synthetic test system is designed using advanced testing technology. User requirements of current situation are introduced, and then system function of test system is given, also related key technology is analyzed. design proposal and system implementation of a taken aero-engine synthetic test system is proposed. Practices prove that the designed system has good performance and can improve efficiency of aero-engine synthetic test greatly.
Axonometric projection is closely allied to view layout and projective transformation in CG. In the published books of mechanical drawing, there are few of the forming method about axonometric projection. This paper a...
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This paper highlights the accomplishments in designing a peer-to-peer online multiplexer game. The design of a turn-based fantasy game in terms of game design: game-balancing, non-linearity, artificial intelligence, l...
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In the paper the features of prototyping of interrelated electronic, mechanical and software parts of robotic prosthesis on the basis of three-dimensional technologies of scanning and printing as well as platform-orie...
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ISBN:
(纸本)9781728100531
In the paper the features of prototyping of interrelated electronic, mechanical and software parts of robotic prosthesis on the basis of three-dimensional technologies of scanning and printing as well as platform-oriented design are investigated. The example of practical implementation of prototype of robotic prosthetic of the human upper limb is presented.
This study proposed the sports training auxiliary system design concept based on the characteristics of cloud computing and needs of modern sports training. The paper illustrates the key technology of system of body f...
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ISBN:
(纸本)9781479928606
This study proposed the sports training auxiliary system design concept based on the characteristics of cloud computing and needs of modern sports training. The paper illustrates the key technology of system of body frame structure, infrastructure services, platform management, intelligent service, etc. The system not only to the popularization of computer-assisted training, improve the effect of training plays an important role, and can obviously improve the different regional sports resources is not balanced, the unequal status information.
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