RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS
In view of the temperature field generated during the working process of the twin-screw compressor,the rotor produces thermal deformation and thermal stress,which is likely to cause fatigue damage to the rotor. Therefore,it is of great significance to analyze the stress fatigue of the screw rotor un...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2021-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.023 |
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| _version_ | 1841535982661271552 |
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| author | WANG JunLi LU ZhengWu LI QingQing LI TuoLei LEI Shuai FENG MingHao |
| author_facet | WANG JunLi LU ZhengWu LI QingQing LI TuoLei LEI Shuai FENG MingHao |
| author_sort | WANG JunLi |
| collection | DOAJ |
| description | In view of the temperature field generated during the working process of the twin-screw compressor,the rotor produces thermal deformation and thermal stress,which is likely to cause fatigue damage to the rotor. Therefore,it is of great significance to analyze the stress fatigue of the screw rotor under the action of temperature load. Based on the finite volume method to numerically simulate the temperature field of the compressor in the working process,the GGI（ General Grid Interface）interpolation technology was used to transfer the temperature load to the rotor structure grid,and a thermo-solid unidirectional coupling simulation method based on loose coupling was established. The accuracy of the method was verified by using " L-shaped large diameter buried pipeline ". By solving the static balance equation of the rotor structure,the deformation and stress distribution of the rotor under the action of temperature load were studied. Finally,the fatigue life of the rotor was analyzed through the revised stress fatigue S-N curve. The research results show that the maximum deformation of the screw rotor occurs at the end where the male rotor is connected to the motor. The tooth tip of the female rotor and the tooth root of the male rotor produce a large stress concentration,and with the increase of temperature,the service life of the screw rotor Gradually decreases.This method can provide reference for compressor design research and optimization upgrade. |
| format | Article |
| id | doaj-art-e1c72d4794a740eda690fc85077e0af1 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-e1c72d4794a740eda690fc85077e0af12025-01-15T02:25:45ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-014392893530611435RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSISWANG JunLiLU ZhengWuLI QingQingLI TuoLeiLEI ShuaiFENG MingHaoIn view of the temperature field generated during the working process of the twin-screw compressor,the rotor produces thermal deformation and thermal stress,which is likely to cause fatigue damage to the rotor. Therefore,it is of great significance to analyze the stress fatigue of the screw rotor under the action of temperature load. Based on the finite volume method to numerically simulate the temperature field of the compressor in the working process,the GGI（ General Grid Interface）interpolation technology was used to transfer the temperature load to the rotor structure grid,and a thermo-solid unidirectional coupling simulation method based on loose coupling was established. The accuracy of the method was verified by using " L-shaped large diameter buried pipeline ". By solving the static balance equation of the rotor structure,the deformation and stress distribution of the rotor under the action of temperature load were studied. Finally,the fatigue life of the rotor was analyzed through the revised stress fatigue S-N curve. The research results show that the maximum deformation of the screw rotor occurs at the end where the male rotor is connected to the motor. The tooth tip of the female rotor and the tooth root of the male rotor produce a large stress concentration,and with the increase of temperature,the service life of the screw rotor Gradually decreases.This method can provide reference for compressor design research and optimization upgrade.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.023CompressorTemperature fieldGGIStatic equilibrium equationFatigue life |
| spellingShingle | WANG JunLi LU ZhengWu LI QingQing LI TuoLei LEI Shuai FENG MingHao RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS Jixie qiangdu Compressor Temperature field GGI Static equilibrium equation Fatigue life |
| title | RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS |
| title_full | RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS |
| title_fullStr | RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS |
| title_full_unstemmed | RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS |
| title_short | RESEARCH ON STRESS FATIGUE OF TWIN SCREW COMPRESSOR ROTOR BASED ON THERMAL ANALYSIS |
| title_sort | research on stress fatigue of twin screw compressor rotor based on thermal analysis |
| topic | Compressor Temperature field GGI Static equilibrium equation Fatigue life |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.04.023 |
| work_keys_str_mv | AT wangjunli researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis AT luzhengwu researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis AT liqingqing researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis AT lituolei researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis AT leishuai researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis AT fengminghao researchonstressfatigueoftwinscrewcompressorrotorbasedonthermalanalysis |