A Tolerance Optimization Calculation Method of Gear System Based on Dynamic Reliability

A technology of gear system and optimization calculation, applied in the direction of calculation, design optimization/simulation, instrument, etc., can solve the problem of performance reliability performance reliability synergy of gear system without considering tolerance parameters, achieve good working ability, and the method is simple and easy row effect

Active Publication Date: 2019-07-05
BEIHANG UNIV
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Problems solved by technology

However, the traditional mass loss function method does not consider the degradation of tolerance parameters in the whole life cycle, the degradation effect of gear system performance reliability, and the synergistic effect of various production and assembly tolerances on performance reliability.

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  • A Tolerance Optimization Calculation Method of Gear System Based on Dynamic Reliability
  • A Tolerance Optimization Calculation Method of Gear System Based on Dynamic Reliability
  • A Tolerance Optimization Calculation Method of Gear System Based on Dynamic Reliability

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Embodiment

[0072] The present invention will be further described in detail below in conjunction with the tolerance optimization process of a specific transmission system gear meshing pair, see figure 2 , the present invention is a gear system tolerance optimization method based on dynamic reliability, and the specific implementation steps of the invention are as follows:

[0073] Step 1: Modeling of gear system tolerance degradation

[0074] In this embodiment, the gear system refers to a gear pair designed for tolerance optimization.

[0075] According to the design requirements and process route of the gear system, the tolerance parameters of the gear system are analyzed to determine the sensitive parameters that affect the performance reliability and their processing characteristics, distribution characteristics and cost characteristics. The degradation law of tolerance parameters with time. gear system see attached figure 1 , the tolerance related information is as follows:

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Abstract

The present invention provides a dynamic reliability-based gear system tolerance optimization calculation method. The method comprises a first step of modeling for gear system tolerance degradation, analyzing a design requirement of the gear system and processing routing, and determining a processing characteristic, a distribution characteristic and a cost characteristic of each sensitive tolerance parameter and a time-based degradation rule; a second step of determining a general stress model of the gear system; a third step of determining a strength degradation model of the gear system; a fourth step of calculating dynamic reliability; a fifth step of building a tolerance optimization model; and a sixth step of determining an optimal tolerance. Dynamic reliability is introduced to the field of gear system tolerance optimization, so that the traditional optimization model with total mass loss as the target is changed, and the working capability of the gear system can be evaluated more scientifically and objectively.

Description

technical field [0001] The invention belongs to the field of gear system tolerance optimization design, in particular to a gear system tolerance optimization method based on dynamic reliability. Background technique [0002] Tolerance optimization generally refers to modifying product tolerances on an existing basis through historical information and engineering experience to meet various user needs. Accurate tolerance optimization plays a very important role in the improvement of design schemes, feasibility analysis, life cycle cost estimation, and maintenance support planning arrangements. [0003] The traditional gear tolerance optimization method is the mass loss function method, and the optimization design is carried out with the goal of minimizing the total mass loss. According to the impact of the fluctuation of each tolerance parameter of the gear on the quality characteristics of the product, this method considers whether it is necessary to give a smaller tolerance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F30/23
Inventor 陈云霞刘耀松井海龙
Owner BEIHANG UNIV
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