Establishment method of lightweight civil aircraft model
A lightweight model and lightweight technology, applied in the field of civil aircraft lightweight model establishment, can solve the problems of slow model opening, long network transmission time, large amount of 3D model data, etc., and achieve the effect of reducing the size of data
Inactive Publication Date: 2017-05-17
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Benefits of technology
In summary, this new technology allows for efficient creating high-quality simulations from small amounts of material without sacrificing quality. By dividing each part into smaller parts based upon their respective needs, we aimed at reducing its overall dimensions while still maintaining good performance over time. Additionally, our approach involves performing various transformations such as distorted shape transformation, triangular patch optimizations, and pattern recognition processes before storing them onto memory. Overall, these technical improvements make the process more effective than previous methods but also save considerable space when stored separately.
Problems solved by technology
This patented describes how heavy weight (heavy duty) materials are used during flight testing on commercial jets or military fighter planes due to their high cost compared to lighter components like plastics. These materials have limited lifetimes because they may break down overtime without being able to maintain proper function properly. To solve these issues, advanced methods were developed by combining different types of material into one component called an integrated structure made from multiple layers of thin films. By doing so, weaker parts of the composite structure become stronger while still allowing usable space within it. Overall, our technical solution involves creating a simplified version of complex structures containing both strong and flexible elements, making them more durably resistant against damage caused by external factors like weather conditions.
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[0026] The present invention will be further described below in conjunction with the accompanying drawings.
[0027] Civil aircraft is a typical complex system, which has the characteristics of complex structure and many components, so its 3D digital prototype has a large amount of data. According to the analysis, in the process of displaying civil aircraft models, different levels have different requirements for model accuracy. Models with higher levels, such as product system level, have lower requirements for model display accuracy; on the contrary, models with lower levels, such as part level, have lower The display accuracy is higher. According to the structure tree, the model can be decomposed hierarchically: product system level, subsystem level, component system level, and part level. Different levels of digital models have different display accuracy requirements. This paper adopts a hierarchical model lightweight method when performing lightweight operations on them.
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The invention discloses lightweight model establishment for a civil-aircraft three-dimensional digital model and application analysis thereof. The civil-aircraft three-dimensional model has visual property and has the important significance on improvement of the practice efficiency and accuracy of remote aircraft maintenance, supporting and other engineering. However, the three-dimensional model data volume is large, so that model opening is slow and the time consumed for network transmission is long. Therefore, light weight of the aircraft three-dimensional digital model has important significance in actual practical engineering and relevant operation. For the practical problem, a hierarchical lightweight method of the civil-aircraft three-dimensional model is provided on the basis that existing domestic and overseas research results in the model lightweight field are combined, and the lightweight model adopts the mode that assembly files and part files are stored in a separated mode. The lightweight model of the civil-aircraft three-dimensional model supporting remote network operation and three-dimensional model line maintenance is generated. A test proves that the method can effectively decrease model size, and the transmission speed and model display speed of the model in networks are improved. The lightweight model is mainly applied to visualized fault positioning and maintaining guidance in the fields of civil aircraft line maintenance and remote fault diagnosis.
Description
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