Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains

Due to the large scale of AT planetary gear trains (PGTs) schemes with 4-5 degrees of freedom, the optimization time is too long. In order to be qualified for large-scale AT structural schemes synthesis, a link synthesis and isomorphism identification method based on string encoding is proposed. The...

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Main Author: Xue Huanzhang
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Transmission 2023-02-01
Series:Jixie chuandong
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Online Access:http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.02.006
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author Xue Huanzhang
author_facet Xue Huanzhang
author_sort Xue Huanzhang
collection DOAJ
description Due to the large scale of AT planetary gear trains (PGTs) schemes with 4-5 degrees of freedom, the optimization time is too long. In order to be qualified for large-scale AT structural schemes synthesis, a link synthesis and isomorphism identification method based on string encoding is proposed. The characters of the links are defined according to each link type of the PGT, and the AT structure is converted into a string. By analyzing the characteristics of the brake links and interconnection links in the planetary gear set string, and using the combination principle to design a reasonable string synthesis algorithm, the isomorphism identification of the PGTs and the AT structures are realized respectively. During the synthesis of the AT structures, the PGT strings and AT structure strings that do not satisfy the link constraints are eliminated separately. The correctness and efficiency of the method are verified by five examples.
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publisher Editorial Office of Journal of Mechanical Transmission
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series Jixie chuandong
spelling doaj-art-ad936e7bca474e9ebdb78a611a2e638f2025-01-10T14:57:02ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392023-02-0147425234891971Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear TrainsXue HuanzhangDue to the large scale of AT planetary gear trains (PGTs) schemes with 4-5 degrees of freedom, the optimization time is too long. In order to be qualified for large-scale AT structural schemes synthesis, a link synthesis and isomorphism identification method based on string encoding is proposed. The characters of the links are defined according to each link type of the PGT, and the AT structure is converted into a string. By analyzing the characteristics of the brake links and interconnection links in the planetary gear set string, and using the combination principle to design a reasonable string synthesis algorithm, the isomorphism identification of the PGTs and the AT structures are realized respectively. During the synthesis of the AT structures, the PGT strings and AT structure strings that do not satisfy the link constraints are eliminated separately. The correctness and efficiency of the method are verified by five examples.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.02.006Planetary gear trainsMulti degree of freedom (Multi-DOF)Structural synthesisIsomorphism identificationString encoding
spellingShingle Xue Huanzhang
Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
Jixie chuandong
Planetary gear trains
Multi degree of freedom (Multi-DOF)
Structural synthesis
Isomorphism identification
String encoding
title Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
title_full Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
title_fullStr Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
title_full_unstemmed Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
title_short Structural Synthesis and Isomorphism Identification of Multi-DOF AT Planetary Gear Trains
title_sort structural synthesis and isomorphism identification of multi dof at planetary gear trains
topic Planetary gear trains
Multi degree of freedom (Multi-DOF)
Structural synthesis
Isomorphism identification
String encoding
url http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2023.02.006
work_keys_str_mv AT xuehuanzhang structuralsynthesisandisomorphismidentificationofmultidofatplanetarygeartrains