Excitation calibration method of kinetic model
A dynamic model and calibration method technology, which is applied in the testing of mechanical components, testing of machine/structural components, special data processing applications, etc., can solve the problems of subjective assessment, poor accuracy of dynamic models, and insufficient rigor of calibration methods, etc. Achieve the effects of wide application range, high precision, and correction of incentive deviation
Pending Publication Date: 2021-01-05
NANJING HIGH SPEED GEAR MFG
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For excitation calibration, the most widely used method at present is to subjectively compare the tooth surface load calculated by the dynamic model with other gear software (for example, large-scale software for transmission system design analysis and optimization) to determine whether the two are close, or by The gear transmission error calculated by the dynamic model is subjectively compared with the ideal position deviation to determine whether the two are close. The existing technology usually uses a single parameter for comparison. The calibration method is not rigorous enough, and the evaluation is relatively subjective, which cannot completely realize the dynamics The excitation calibration of the model makes the accuracy of the dynamic model poor
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[0028] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.
[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describin...
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The invention relates to the technical field of excitation calibration of gears, and discloses an excitation calibration method of a kinetic model. The method comprises the following steps: establishing a gear box transmission error experiment bench, and detecting a test gear transmission error of a gear box; establishing a gear box stress experiment bench, and detecting the test tooth surface uniform load of the gear box; establishing a kinetic model, and calculating a model gear transmission error of the model gear box; judging whether the difference between the test gear transmission errorand the model gear transmission error is within a first preset range or not; if so, calculating a model tooth surface uniform load of the model gear box according to the kinetic model; judging whetherthe ratio of the difference between the test tooth surface average load and the model tooth surface average load to the test tooth surface average load is within a second preset range or not; and ifyes, judging that the kinetic model is reasonable. According to the excitation calibration method for the kinetic model, the excitation deviation of the gear box can be effectively corrected, so thatthe accuracy of the kinetic model is higher, and the application range is wider.
Description
technical field [0001] The invention relates to the technical field of gear excitation calibration, in particular to an excitation calibration method of a dynamic model. Background technique [0002] With the trend of large megawatts and light weight, the power density of gearboxes increases, and the vibration problem will gradually become more prominent. In order to be able to control and optimize the vibration and noise of the gearbox from the source and the initial stage of design, reliable calculation and analysis methods are needed. The existing commonly used analysis method is the dynamic model. The dynamic model can not only simulate the operating conditions of the fan drive chain, but also diagnose and explain vibration and noise problems. However, the accuracy of the dynamic model is limited by the input parameters, experience and Therefore, the calibration of the dynamic model is very important. [0003] The calibration of the dynamic model is mainly divided into...
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IPC IPC(8): G06F30/17G06F30/20G01M13/026G06F119/14
CPCG06F30/17G06F30/20G01M13/026G06F2119/14
Inventor 常涛熊永强陈强
Owner NANJING HIGH SPEED GEAR MFG