Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission
Aiming at the problem of transmission gear idling knocking abnormal noise in a batch of domestically produced new trucks， based on the research method of "conjecture-theoretical research-test verification"， the situation that the transmission idling knocking problem is caused by the fricti...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Transmission
2021-07-01
|
| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.019 |
| _version_ | 1826881580445990912 |
|---|---|
| author | Liangliang Zhao Qiang Wu Fuyun Liu Hanhong Yu Rukai Hu |
| author_facet | Liangliang Zhao Qiang Wu Fuyun Liu Hanhong Yu Rukai Hu |
| author_sort | Liangliang Zhao |
| collection | DOAJ |
| description | Aiming at the problem of transmission gear idling knocking abnormal noise in a batch of domestically produced new trucks， based on the research method of "conjecture-theoretical research-test verification"， the situation that the transmission idling knocking problem is caused by the friction clutch first-stage torsion damper and mismatch of parameters and power transmission system is analyzed and confirmed. The relationship between the first-stage torsional stiffness， dry friction damping torque， the limit value of the forward and reverse torsion angle and the transmission gear knocking noise is studied. The results show that， the torsion characteristic parameters of the clutch torsion damper can be adjusted to solve the abnormal noise of the transmission idling， which is the simplest and most effective method. Therefore， under the condition that the premise of keeping the first-class forward and reverse torsion angle limit values and dry friction damping torque unchanged， the first-class torsional stiffness is optimized， and the samples are manufactured and tested on the vehicle. The data of speed and noise time domain is collected after optimization of the clutch and is post-processed. Then compared with the before it had not been optimized， and the subjective feelings are compared. Both theoretical analysis and tests show that， the friction clutch after adjusting the first-stage torsional stiffness effectively attenuates the engine output speed fluctuations， and the transmission idling knocking abnormal noise is well suppressed. This method has reference value for solving other similar transmission gear knocking problems. |
| first_indexed | 2024-03-13T09:26:46Z |
| format | Article |
| id | doaj.art-fe8e54793f944287a472037ee0ff6c61 |
| institution | Directory Open Access Journal |
| issn | 1004-2539 |
| language | zho |
| last_indexed | 2025-02-17T02:47:28Z |
| publishDate | 2021-07-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj.art-fe8e54793f944287a472037ee0ff6c612025-01-10T14:48:32ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392021-07-014512813418847944Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck TransmissionLiangliang ZhaoQiang WuFuyun LiuHanhong YuRukai HuAiming at the problem of transmission gear idling knocking abnormal noise in a batch of domestically produced new trucks， based on the research method of "conjecture-theoretical research-test verification"， the situation that the transmission idling knocking problem is caused by the friction clutch first-stage torsion damper and mismatch of parameters and power transmission system is analyzed and confirmed. The relationship between the first-stage torsional stiffness， dry friction damping torque， the limit value of the forward and reverse torsion angle and the transmission gear knocking noise is studied. The results show that， the torsion characteristic parameters of the clutch torsion damper can be adjusted to solve the abnormal noise of the transmission idling， which is the simplest and most effective method. Therefore， under the condition that the premise of keeping the first-class forward and reverse torsion angle limit values and dry friction damping torque unchanged， the first-class torsional stiffness is optimized， and the samples are manufactured and tested on the vehicle. The data of speed and noise time domain is collected after optimization of the clutch and is post-processed. Then compared with the before it had not been optimized， and the subjective feelings are compared. Both theoretical analysis and tests show that， the friction clutch after adjusting the first-stage torsional stiffness effectively attenuates the engine output speed fluctuations， and the transmission idling knocking abnormal noise is well suppressed. This method has reference value for solving other similar transmission gear knocking problems.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.019Torsional vibrationRattle noiseTestTransmissionClutch |
| spellingShingle | Liangliang Zhao Qiang Wu Fuyun Liu Hanhong Yu Rukai Hu Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission Jixie chuandong Torsional vibration Rattle noise Test Transmission Clutch |
| title | Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission |
| title_full | Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission |
| title_fullStr | Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission |
| title_full_unstemmed | Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission |
| title_short | Research of Analysis and Diagnosis of Abnormal Noise at Idle Speed of a Truck Transmission |
| title_sort | research of analysis and diagnosis of abnormal noise at idle speed of a truck transmission |
| topic | Torsional vibration Rattle noise Test Transmission Clutch |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2021.07.019 |
| work_keys_str_mv | AT liangliangzhao researchofanalysisanddiagnosisofabnormalnoiseatidlespeedofatrucktransmission AT qiangwu researchofanalysisanddiagnosisofabnormalnoiseatidlespeedofatrucktransmission AT fuyunliu researchofanalysisanddiagnosisofabnormalnoiseatidlespeedofatrucktransmission AT hanhongyu researchofanalysisanddiagnosisofabnormalnoiseatidlespeedofatrucktransmission AT rukaihu researchofanalysisanddiagnosisofabnormalnoiseatidlespeedofatrucktransmission |