Optimization Design And Test Analysis Of Wing Modularization

As an important part of the aircraft,the wing not only has the function of generating lift to support the flight of the aircraft in the air,but also has a certain stability and control function.The quality of the wing structure design largely determines the performance of the aircraft.Modular design,as an increasingly popular design method,has a wide range of application prospects in the design of wing structures;longitudinal skeleton,transverse skeleton and skin as the main load-bearing members of the wing,affect the performance of the wing structure great.In order to get the optimal design of the best wing structure,it is necessary to optimize the design of the skeleton of the modular wing structure.This paper studies the modular highspeed maneuvering configuration wing and low-speed stagnation configuration wing.The specific research contents are as follows:1.Optimization method based on modular wing design.Aiming at the special form of modular wing,a parametric finite element modeling and optimization method is proposed.Completed the parametric modeling of the modular wing through Python and optimized it on the Isight platform.The key technologies mainly include a new parametric modeling idea: on the basis of traditional modeling methods,to ensure the consistency of the two configurations on the universal module and the automatic distribution of aerodynamic loads: convert linearly distributed loads Complete the load application for the distributed load field.2.Design of modular wing static test plan.Specifically,it includes the fixed-end design of the structure,the design of the loading system,and the design of the data acquisition system.In the static test of the wing,special fixtures and tools are designed to fix the wing structure;an airbag loading device that can control a small amount of load is designed to complete the precise load application;a complete data acquisition system is designed.In addition,during the loading process,the distributed load needs to be converted into a concentrated force load that can be applied by the test.Such concentrated force is equivalent to the designed loading point in the form of a secondary lever through the airbag loading device to complete the actual loading.3.Analysis of test results.Complete analysis of all test data and draw conclusions.Combining the data of electrical measurement and optical measurement proves the scientificity of the experiment.