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A new method of feature recognition based on similarity measure of primitive views is put forward to enhance efficiency of reconstruction of 3D solid mode of mechanical part from engineering drawing and expand its application in this paper, The details of this method include separating three views of single and combined primitive bodies by view loop searching; coding primitive view loops and calculating...
For improving validity and efficiency of 3D reconstruction from 2D engineering drawings, this paper presents a new method of primitive feature recognition based on graphics comparability determining of view loop. Main steps of this method are as follows: Firstly separate three views of single or combined primitive bodies by loop search, and then code view loops of primitive body and calculate graphics...
To detect gradual tool wear state online, this paper presents the methods of wavelet fuzzy neural network, regression neural network and sample classification fuzzy neural network by detecting cutting force, motor power of machine tool and AE signal respectively. Although these methods can be implemented, it is difficult to obtain comprehensive information of machining and exact value of tool wear...
Combined with the fast multiple methods, the boundary element method become quite efficient to deal with large-scale engineering and scientific problems. In this paper, by applying fast multiple expansions, the boundary integral equation about the elastic problem is discrete. In boundary integral equality, because solutions contain singular term 1r , which influences the application of fast multiple...
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