66 results about "Cutting sequence" patented technology

The invention relates to a method, device, storage medium and computer device for planning a laser cutting path, wherein the part information and layout information of a part to be cut are obtained; numbering processing on the part to be cut is carried out so as to obtain a serial number combination; according to the number combination, the part information and the layout information, the information of a shortest cutting path is obtained; according to the number combination, part information and layout information corresponding to the information of the shortest cutting path, the cutting pathis planned to obtain the path planning information. By carrying out numbering and combination on the part to be cut, after calculating the length of the cutting path corresponding to each combination, a combination corresponding to the shortest path is selected as the optimal part cutting sequence and the path planning is carried out so as to ensure the integral cutting path is the shortest, so that the laser cutting time is shortened, the laser cutting efficiency is improved, and the scientificity and the rationality of the laser cutting path planning are improved.

To generate a bevel in an uncured composite layup, an edge of part cut through the composite layup is performed at about 90° relative to the composite layup and a bevel cut is performed on the edge of part.

To generate a bevel in an uncured composite layup, an edge of part cut through the composite layup is performed at about 90° relative to the composite layup and a bevel cut is performed on the edge of part.

The invention provides an embedded satellite-borne software test case generation method based on a dynamic fault tree. The embedded satellite-borne software test case generation method comprises the following steps: (1) determining an on-orbit actual dynamic operation profile and an input space of tested software; (2) establishing a fault mode propagation path and a fault mode set of the operationprofile; (3) establishing a dynamic fault tree; (4) constructing a cutting sequence set corresponding to the dynamic fault tree, and determining a minimum cutting sequence set in the cutting sequenceset; (5) establishing test case input and expected output of the minimum cut sequence equivalent class, and generating a test case; (6) loading the test case, running the tested software, and takinginput data as execution input to obtain actual output; and (7) checking whether the actual output set is consistent with the expected output set. The test case generated by the method has the advantages of low coupling degree, high efficiency, high granularity and high reusability.

The invention discloses a cable pre-cutting process method, and aims to solve the problem of high cable cutting cost caused by a large cable total quantity and high protection difficulty in a cable cutting process in the prior art. The cable pre-cutting process method comprises the following steps: compiling information of pre-cut cables into a cable book, wherein in the compiling process of the cable book, summarized content comprises relevant information such as pages of each district cable and each bus cable, the statistical lengths of cables of various specifications in a whole ship, and the total length of the cable book; cutting the cables according to analytical data of the cable book; and sequencing and coiling the cut cables into a cable barrel according to the analytical data, wherein front cables in the cable book are coiled into the cable barrel firstly, and a cable cutting sequence is reverse to the sequence in the cable book, so that attention needs to be paid to a cable paving sequence and the front length or back length of a cable stopping point during compiling of the cable book. After application of the cable pre-cutting process method, the total cable carrying quantity is effectively reduced; the cable protection difficulty is lowered; and convenience is brought to production.

The invention discloses an automatic material cutting and forming method and a system thereof. The method comprises the steps that materials are flattened and placed in a feeding area of a cutting seat; multiple standard samples are laid on the material portions which can be cut by a worker according to the quality requirements; image acquisition is performed on each standard sample on the materials to acquire a sample position striograph of each standard sample; the standard samples on the materials are removed, and the materials are conveyed to the position under a cutting die plate; a sample position vector diagram, in the DXF, of each standard sample is acquired; the cutting sequence of the using samples needing to be cut and formed on the materials is determined; a cutting die type setting vector diagram is acquired; corresponding cutting is performed on the materials according to the cutting sequence of the using samples and the cutting die type setting vector diagram; after material cutting is finished, the cutting die plate returns to an original position. According to the automatic material cutting and forming method and the system thereof, not only are the optimizing type setting applicability and speedability of the standard samples on the materials with different shapes greatly improved, but also automatic cutting of the materials is achieved, and time and labor are saved.

Digitization of an analog input signal involves sampling the analog signal to produce a first sequence of analog samples representing continuous amplitudes, and deinterleaving the first sequence to form two or more second sequences. The second sequence is processed using a parallel processing delta-sigma modulator to generate two or more digital data elements of the third sequence. The third sequence is then interleaved to produce a fourth sequence of digital data elements. Finally, the fourth sequence is filtered and truncated to generate a fifth sequence of digital data elements representing the continuous amplitude of the analog input signal.