Advanced Design and Manufacturing Technology I by Hun Guo, Zuo Dunwen, Tang Guoxing PDF

By Hun Guo, Zuo Dunwen, Tang Guoxing

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This paper has studied the object of automobile cover panel through comparison of captured contour by the analysis of PAM-STAM software. From captured line of contour of relative position of part, contour geometry obtained by calculation of part resilience, can be compared with designed geometry, to judge whether the error between both geometries meets the design need. Formation of Warping and Resilience Drawing easily leads to the non-uniform residual stress in a sheet. When the residual stress is less than a certain critical value, the sheet will stick to its normal deformation form; when residual stress is greater than the critical value, the deformation of plate suddenly entered a new form of the deformation.

The value plug is moved over a distance and formed an aperture. Thus the flow direction and flow rate can be controllable. On this occasion, the rudder blade is turned by hydraulic cylinder motion. Finally, variations of rudder moment and rudder angle are realized under hydrodynamic force, keeping the given course of the ship. 2. Here ψr(t) represents the given course angle, δ(t) represents the input rudder angle of the predictive model, ψ(t) represents the output course angle of the system, ψˆ (t ) represents the output course angle of the prediction model and f(t) represents interference.

2 Section distribution Analysis of Simulation Result In Fig. 3, line 1 indicates the section before resilience, line 2 means the section after resilience. Based on the comparison the resilience area focus on the irregular shape in the left, where the area near A-A section is most complicated. The left side of the section shows there is max. 1° approximately. , there is almost no resilience in bottom and left side and no change of shape. 1°approximately. Based on the simulation result, the resilience on the four sections show uneven, caused by complicated stress and so on.

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