Haobo Cheng's Independent Variables for Optical Surfacing Systems: PDF

By Haobo Cheng

Independent Variables for Optical Surfacing Systems discusses the characterization and alertness of self sustaining variables of optical surfacing structures and introduces the elemental rules of surfacing applied sciences and customary surfacing structures. the entire pivotal variables influencing floor caliber are analyzed; evaluate tools for floor caliber, the elimination potential of software impression capabilities, and a chain of novel optical surfacing structures are brought. The ebook additionally fairly specializes in the multi-path mode and stay time used for deterministic surfacing. Researchers and graduate scholars operating in optical engineering will reap the benefits of this publication; optical engineers within the also will locate it a beneficial reference paintings.

Haobo Cheng is a professor at Beijing Institute of Technology.

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25 Free impinging jet model. (a) Simple mode of jet; (b) mesh and boundary of the model; (c) simulation result with the jet velocity 20 m/s and nozzle diameter 1 mm the jet impinges on the workpiece. Hence, the magnetic field can be ignored at the impingement area on the workpiece, and an assumption is made that the free impinging jet polishing theory (proposed by Becker et al. [12]) can be employed approximately nearby the workpiece where the jet remains coherent. A typical jet polishing model is shown in Fig.

2D two-dimensional shape with eccentric distance L (as shown in Fig. 26) and angular velocity (1 rps), the removal shape has the maximum depth at the center and reduces to zero at the margin. Distribution of the removal shape possesses Gaussian-like character. 2L ); results are shown in Fig. 30b. 4L ) shows W-shape, but removal depth is not zero and it rises dramatically in the center. 4L ) possess the character of Gaussian, but they have different depths and widths. 2L. Overall, the depth first increases then decreases and the width gradually increases, with the eccentric distance being larger.

V1, v2 represent self-rotation and orbital speed of M, respectively. 3 TIF Model Constructions and Optimizations 35 Two parameters are defined which are significant for the characteristics of TIFs. The first is the ratio between self-rotation and orbital annular speed, expressed as shown in Eq. 10). The other is the eccentricity, which could be expressed as the ratio between acentric distance and the pad’s radius, which is presented in Eq. 11). w1 w2 e g¼ r0 f ¼ ð2:10Þ ð2:11Þ The orbital period is T ¼ 2π/w2.

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