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Engine thermodynamic simulation model calibration method based on multi-objective optimization

A multi-objective optimization and thermodynamic model technology is applied in the field of engine thermodynamic simulation model calibration based on multi-objective optimization. The effect of cycle time and development cost saving

Inactive Publication Date: 2015-09-30
WUXI WOERFU AUTO TECH CO LTD
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Problems solved by technology

Due to the large number of adjustable parameters in the engine thermodynamic model, the benchmarking with the test data takes a long time, the efficiency is low, and it may lose sight of the other. It is difficult to calibrate the model accurately, and relevant professionals need to have very rich experience

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  • Engine thermodynamic simulation model calibration method based on multi-objective optimization
  • Engine thermodynamic simulation model calibration method based on multi-objective optimization
  • Engine thermodynamic simulation model calibration method based on multi-objective optimization

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.

[0027] Please refer to figure 1 as shown, figure 1 The flow chart of the method for calibrating the engine thermodynamic simulation model based on multi-objective optimization provided by the embodiment of the present invention.

[0028] In this embodiment, the engine thermodynamic simulation model calibration method based on multi-objective optimization specifically includes the following steps:

[0029] S101. Obtain engine structural parameters and engine test data. In practical applications, engine structural parameters include but not limited to ...

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Abstract

The invention discloses an engine thermodynamic simulation model calibration method based on multi-objective optimization. The method comprises steps as follows: S101, acquiring engine structure parameters and engine test data; S102, establishing a one-dimensional engine thermodynamic model; S103, establishing a coupling calculation model of the one-dimensional engine thermodynamic model and multi-objective optimization software; S104, selecting calibration parameters and setting ranges of the calibration parameters; S105, setting a calibration objective; S106, selecting a corresponding test design and optimization algorithm; S107, executing simulation iteration; S108, performing result analysis by using decision-making tools in the multi-objective optimization software. The method is based on computer simulation analysis, a multi-objective optimization algorithm and a numerical simulation technique are combined, automation of the calibration process is realized, accurate models can be calibrated quickly, the follow-up engine development is supported, the development efficiency is improved, the development cost is saved, and the development cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of engine thermodynamic simulation, in particular to a method for calibrating an engine thermodynamic simulation model based on multi-objective optimization. Background technique [0002] In the development of modern engines, the use of computer-aided engineering (CAE) can greatly shorten the development cycle and save development costs. Engine thermodynamics simulation can quickly evaluate the design advantages and disadvantages of each subsystem of the engine, put forward suggestions for improvement, and provide strong support for the rapid finalization of each subsystem, but these works are based on the premise that the engine thermodynamic model is accurate. Therefore, engine thermodynamics The calibration of the model is the most important thing in the whole engine thermodynamics simulation process. Due to the large number of adjustable parameters in the engine thermodynamic model, the benchmarking wit...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 卢兆强赵霄鹏孟令群洪进
Owner WUXI WOERFU AUTO TECH CO LTD
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