Solid engine test data analysis method based on BP neural network

Abstract

The invention relates to the field of solid engine tests, in particular to a solid engine test data analysis method based on a BP neural network. The method comprises the steps that S1, a BP neural network modeling system is built, a three-layer neural network is selected as a basic framework, the function of an input layer is to import preprocessed data into the neural network, the function of an output layer is to export predicted data, and a hidden layer is changed into white box modularization processing in a black box convolution mode in the convolutional neural network; s2, calculating a state and an activation value of each layer through a BP model iterative algorithm until the last layer; the error of each layer is calculated, and the error calculation process is carried out forwards from the last layer; updating parameters; and the previous two steps are iterated until the conditions are met. According to the method, main feedback parameters of a new solid engine test can be predicted, comparison and error analysis with real test data are carried out, and iterative correction is carried out continuously, so that errors are reduced, and the prediction classification capability of a neural network model is improved.

Description

technical field [0001] The invention relates to the field of solid engine tests, in particular to a method for analyzing test data of solid engines based on BP neural network. Background technique [0002] Solid motor testing is an essential link in the development of solid motors. However, according to statistics, the current status of solid motor testing includes problems such as high cost and long preparation period. At the same time, there are still some problems in the process of testing solid motors. The possibility of causing casualties is not ruled out, which has laid a serious safety hazard for the occurrence of the accident. [0003] At present, the existing technical solution similar to the present invention is a solid engine virtual test technology platform, which can also provide test virtual data of a certain type of solid engine without real test. The working principle of the solid engine virtual test technology platform is based on a large number of formulas...

AI Technical Summary

Problems solved by technology

Secondly, there are a large number of different calculation formulas for different test result parameters, so if you want to get more results, you need a lengthy calculation process

Images