Wall thickness analysis method based on digital model
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An analysis method and model technology, applied in the field of computer science, can solve problems such as inaccuracy, high probability of missed detection, slow speed, etc., and achieve the effects of high efficiency, improved accuracy, and guaranteed design quality
Active Publication Date: 2019-09-06
南京维拓科技股份有限公司
View PDF6 Cites 2 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Model wall thickness analysis can be applied to many very important scenarios, such as: injection molding, 3D printing; at present, digital model wall thickness analysis mainly relies on manual analysis, naked eye identification, the probability of missed detection is high, inaccurate, and slow, so it is urgent Need a kind of new scheme to solve above-mentioned technical problem
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0036] Embodiment 1: see Figure 6-10 , a kind of wall thickness analysis method based on digital model, described method comprises the following steps:
[0037] Step 1, collect the geometric information of the model, and digitize the geometric data of the model, such as geometric planes and geometric arcs;
[0038] Step 2, analyze the geometry, decompose the geometric surface into triangular surfaces, find the vectors of the sides of the triangular surfaces, and obtain the vectors of all the triangular surfaces of the model through vector cross multiplication;
[0039] Step 3: Find the two triangular surfaces with the smallest distance by loop grouping, calculate the vectors of the two triangular surfaces, and calculate the vector angle by the law of cosines, if the vector angle is close to 180 degrees, it is the opposite surface of the wall thickness, and the three points of the triangular surface For the other triangular surface of the projection, judge whether the triangu...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a wall thickness analysis method based on a digital model. The method comprises the following steps: 1, step 1, collecting model geometric information, geometric data of a digitized model, step 2, carrying out analytical geometry, decomposing the geometric surface into a triangular surface, and solving vectors of edges of the triangular surface; step 3, circularly groupingto find out two triangular surfaces with the minimum distance, calculating a vector angle through a cosine law, if the vector angle is close to 180 degrees, namely, an opposite surface of the wall thickness, projecting three points of the triangular surface to another triangular surface, judging whether the triangular surfaces are intersected or not in a line segment intersection manner, and if yes, judging that the triangular surface is the wall thickness; and 4, calculating the point distance of the projection triangular surface. According to the technical scheme, manual analysis is replaced with digital model wall thickness analysis, the problems of stress concentration, deformation, cracks, material shrinkage, strength and the like in product production are solved through wall thickness analysis, a digital model with quality is provided for machining and production, and the design quality is guaranteed.
Description
technical field [0001] The invention relates to an analysis method, in particular to a digital model-based wall thickness analysis method, which belongs to the technical field of computer science. Background technique [0002] With the rapid development of computer applications today, 3D digital model technology is applied to aviation industry, automobile industry, industrial design, etc. It is an inevitable trend that digital product definition replaces traditional product definition. [0003] In the design of engineering parts, experience has shown that there are some design points that must be considered, one of these points is the design of wall thickness. Changing the wall thickness of a part will have a significant impact on the following key properties: part weight; part production cycle; part rigidity; tolerance; part quality such as surface roughness, warpage and voids. [0004] Digital model wall thickness analysis, mainly through explicit state search or implicit...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more