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A Calculation Method of Gear System Performance Reliability Based on Parameter Error Accumulation

A technology of gear system and error accumulation, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve problems such as the calculation method of performance reliability without comprehensive consideration of gear center distance deviation, so as to reduce the number of simulations and improve efficiency , to achieve the effect of continuous transformation

Active Publication Date: 2017-05-17
BEIHANG UNIV
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Problems solved by technology

In the research of gear performance reliability calculation method, there is no performance reliability calculation method that comprehensively considers gear center distance deviation and gear axis parallelism error

Method used

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  • A Calculation Method of Gear System Performance Reliability Based on Parameter Error Accumulation
  • A Calculation Method of Gear System Performance Reliability Based on Parameter Error Accumulation
  • A Calculation Method of Gear System Performance Reliability Based on Parameter Error Accumulation

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0038] The present invention is a gear system performance reliability calculation method based on parameter error accumulation, see figure 1 As shown, the specific steps of the method are as follows:

[0039] Step 1: Determination of assembly parameter type

[0040] Analyze the gear system to obtain the specific structural size information of the gear system. According to the tolerance and coordination manual, determine the type of parameters that have deviations during gear assembly, and determine the tolerance range of the parameters.

[0041] According to the physical and interchangeability analysis of the gear pair, the assembly deviation parameters of a pair of gears include gear center distance deviation and gear axis parallelism error. Combining the structural dimensions and assembly dimensions of the gear system, it is easy to find a...

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Abstract

A parameter error accumulation based gear system performance reliability degree calculation method comprises the following steps of 1 determining assembly parameter type; 2 determining sensitivity parameter type; 3 performing sensitivity parameter response surface analysis; 4 calculating gear system performance reliability degree. The parameter error accumulation based gear system performance reliability degree calculation method overcomes the shortcoming that a traditional performance reliability degree calculation method does not give full consideration to assembly accumulation error influence, a coordinate is established for a gear system model and model offset and rotation processing is performed to enable a model assembly mode to approximate to the actual situation, and continuous transformation of model assembly sensitivity parameters within an error range is achieved. Stress simulation of each group of design points is automatically performed after other simulation conditions are controlled by software, consistency of the conditions is ensured, and meanwhile calculation efficiency is also improved. Safety factor distribution of a gear system in different assembly modes is determined through response surface analysis, accordingly performance reliability degree is determined, simulation times are decreased, and efficiency is improved.

Description

technical field [0001] The invention provides a gear system performance reliability calculation method based on parameter error accumulation. The calculation method mainly considers the performance reliability of the gear system under the influence of the accumulation of various assembly parameter errors. The invention belongs to the technical field of mechanical product reliability design analysis. Background technique [0002] The assembly deviation of the product must exist in the actual processing and assembly, and the assembly deviation is an important factor affecting the reliability of product performance. At present, the performance reliability calculation of mechanical products seldom considers the influence of assembly deviation. There are also relatively few calculation methods for the performance reliability of product assembly error accumulation. In the study of gear performance reliability calculation methods, there is no performance reliability calculation m...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 康锐宋功媛陈云霞
Owner BEIHANG UNIV
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