Herringbone gear tooth surface optimization design method based on genetic algorithm
An optimized design, herringbone gear technology, applied in the field of mechanical transmission, can solve problems such as tedious calculations, and achieve the effect of avoiding the risk of serious failure, strong global search ability, and avoiding the risk of gear failure.
Pending Publication Date: 2021-07-09
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology
The present invention can obtain the modification amount conveniently and quickly, and overcomes the disadvantage that a large amount of tedious calculations are required to determine the modification amount in the existing method for modifying the shape
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[0024] Such as figure 1 Shown, the present invention is a kind of herringbone gear tooth surface optimization method based on genetic algorithm, comprises the following steps:
[0025] Step 1: Analyze the common faults in the meshing process of the gear transmission system. If the transmission error is too large, it may cause a large impact on the gear meshing and meshing, and the transmission will not be stable; if the Hertz contact stress on the tooth surface is too large, it may aggravate the gear. Surface wear will increase noise and system power loss; if the normal load distribution is uneven, it will cause the gear to be unbalanced and prone to breakage at one end of the gear teeth;
[0026] Step 2: Carry out comprehensive simulation and contact analysis on the herringbone gear pair, check the advantages and disadvantages of the above indicators to determine the optimization target. In this example, the transmission error and the normal load per unit length of the tooth ...
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The invention discloses a herringbone gear tooth surface optimization design method based on a genetic algorithm. The herringbone gear tooth surface optimization design method comprises the following steps: (1) analyzing common fault problems and factor characteristics caused by the fault problems in a meshing process of a gear transmission system; (2) carrying out comprehensive simulation and contact analysis on the herringbone gear pair, checking the quality condition of each index, and determining a target to be optimized by combining the actual problems encountered in the gear meshing transmission process; (3) the effect of improving transmission errors through tooth direction drum shape modification is obvious, the effect of improving the unbalance loading problem through tooth direction inclination shape modification is obvious, and selecting a shape modification mode in a targeted mode as a design variable according to a target needing to be optimized; (4) comparing the applicability and advantages and disadvantages of a common swarm intelligence optimization algorithm, and selecting a proper and reasonable algorithm to carry out scheme design on an optimization target in combination with a required optimization instance; and (5) operating an optimization algorithm to obtain candidate schemes, selecting an optimal scheme, setting the optimal scheme in the tooth surface target design form, and comparing results of the indexes before and after optimization. According to the method, the potential fault problem of the herringbone gear transmission system can be detected, the herringbone gear transmission system can be quickly and efficiently modified and optimized to solve the fault, and the risk of serious failure of the gear is avoided in time.
Description
[0001] The invention belongs to the field of mechanical transmission, and relates to a genetic algorithm-based optimal design method of a herringbone gear tooth surface, in particular to an optimal design method for gear failure problems of mechanical equipment. Background technique [0002] The herringbone gear transmission system is widely used in high-speed precision heavy-duty vehicles such as automobiles, aerospace, mining machinery and ships due to its small size, light weight, small axial force, large transmission ratio, strong bearing capacity, and high transmission efficiency. transmission field. [0003] The herringbone gear can be regarded as composed of two helical gears with opposite directions of rotation. Due to factors such as manufacturing errors and installation accuracy, it often leads to tooth breakage, large vibration and noise, speed fluctuations, and unstable transmission during the transmission process. Therefore, it is necessary to precisely optimize t...
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Patent Timeline
Login to View More IPC IPC(8): G06F30/17G06F30/27G06N3/12G06F111/06G06F111/08
CPCG06N3/126G06F30/17G06F30/27G06F2111/06G06F2111/08
Inventor 郭栋祥王淑妍袁卓俊
Owner JIANGSU UNIV OF SCI & TECH