Investigation of engagement characteristics of a multi-disc wet friction clutch
A kinematic coupling model of the rotation-axial engagement process of friction elements is established based on the oil film dynamic pressure lubrication and an elastic contact model of the asperities. The engagement characteristics of the multi-disc wet friction clutch are analyzed. The equation f...
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| Veröffentlicht in: | Tribology international 2021-07, Vol.159, p.106940, Article 106940 |
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| creator | He-yun, Bao Wei, Huang Feng-xia, Lu |
| description | A kinematic coupling model of the rotation-axial engagement process of friction elements is established based on the oil film dynamic pressure lubrication and an elastic contact model of the asperities. The engagement characteristics of the multi-disc wet friction clutch are analyzed. The equation for the transmission torque of the clutch is derived by considering the axial movement of the friction elements and the surface morphology of the friction pairs. The influences of the piston pressure and the number of friction pairs on the speed and transmission torque of the clutch during engagement are analyzed considering the viscous torque and the contact torque. Finally, the effects of engagement pressure on the torque and engagement time of the clutch are verified.
•The coupling model of the rotation-axial engagement process of friction elements is established.•The ultimate shear stress of the lubricating oil is taken into account.•The shaft torsion stiffness and split spring between steel disc is taken into consideration.•The effect of the friction pairs number on clutch speed, torque and film thickness is analyzed. |
| doi_str_mv | 10.1016/j.triboint.2021.106940 |
| format | Article |
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•The coupling model of the rotation-axial engagement process of friction elements is established.•The ultimate shear stress of the lubricating oil is taken into account.•The shaft torsion stiffness and split spring between steel disc is taken into consideration.•The effect of the friction pairs number on clutch speed, torque and film thickness is analyzed.</description><identifier>ISSN: 0301-679X</identifier><identifier>EISSN: 1879-2464</identifier><identifier>DOI: 10.1016/j.triboint.2021.106940</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Axial stress ; Contact pressure ; Dynamic pressure ; Engagement characteristics ; Friction ; Morphology ; Multiple friction pairs ; Pressure effects ; Torque ; Torque characteristics ; Wet clutches ; Wet friction clutch</subject><ispartof>Tribology international, 2021-07, Vol.159, p.106940, Article 106940</ispartof><rights>2021 Elsevier Ltd</rights><rights>Copyright Elsevier BV Jul 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c340t-1db56abb0633721c3eacc34f719e82421bf695bad4dd2dbe26740d5b8e13f21a3</citedby><cites>FETCH-LOGICAL-c340t-1db56abb0633721c3eacc34f719e82421bf695bad4dd2dbe26740d5b8e13f21a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.triboint.2021.106940$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>He-yun, Bao</creatorcontrib><creatorcontrib>Wei, Huang</creatorcontrib><creatorcontrib>Feng-xia, Lu</creatorcontrib><title>Investigation of engagement characteristics of a multi-disc wet friction clutch</title><title>Tribology international</title><description>A kinematic coupling model of the rotation-axial engagement process of friction elements is established based on the oil film dynamic pressure lubrication and an elastic contact model of the asperities. The engagement characteristics of the multi-disc wet friction clutch are analyzed. The equation for the transmission torque of the clutch is derived by considering the axial movement of the friction elements and the surface morphology of the friction pairs. The influences of the piston pressure and the number of friction pairs on the speed and transmission torque of the clutch during engagement are analyzed considering the viscous torque and the contact torque. Finally, the effects of engagement pressure on the torque and engagement time of the clutch are verified.
•The coupling model of the rotation-axial engagement process of friction elements is established.•The ultimate shear stress of the lubricating oil is taken into account.•The shaft torsion stiffness and split spring between steel disc is taken into consideration.•The effect of the friction pairs number on clutch speed, torque and film thickness is analyzed.</description><subject>Axial stress</subject><subject>Contact pressure</subject><subject>Dynamic pressure</subject><subject>Engagement characteristics</subject><subject>Friction</subject><subject>Morphology</subject><subject>Multiple friction pairs</subject><subject>Pressure effects</subject><subject>Torque</subject><subject>Torque characteristics</subject><subject>Wet clutches</subject><subject>Wet friction clutch</subject><issn>0301-679X</issn><issn>1879-2464</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLAzEUhYMoWKt_QQZcT81rks5OKT4KQjcK7kIed9oM7UxNMhX_vamja1cX7j3nXM6H0DXBM4KJuG1nKXjT-y7NKKYkL0XN8QmakLmsS8oFP0UTzDAphazfz9FFjC3GWPJaTtBq2R0gJr_Wyfdd0TcFdGu9hh10qbAbHbRNEHxW2Hi86mI3bJMvnY-2-IRUNMHbH6vdDsluLtFZo7cRrn7nFL09PrwunsuX1dNycf9SWsZxKokzldDGYMGYpMQy0DZfGklqmFNOiWlEXRntuHPUGaBCcuwqMwfCGko0m6KbMXcf-o8hN1BtP4Quv1S0opwTJiuSVWJU2dDHGKBR--B3OnwpgtURnmrVHzx1hKdGeNl4Nxohdzh4CCpaD50F5wPYpFzv_4v4BjkBfNI</recordid><startdate>202107</startdate><enddate>202107</enddate><creator>He-yun, Bao</creator><creator>Wei, Huang</creator><creator>Feng-xia, Lu</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>202107</creationdate><title>Investigation of engagement characteristics of a multi-disc wet friction clutch</title><author>He-yun, Bao ; Wei, Huang ; Feng-xia, Lu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c340t-1db56abb0633721c3eacc34f719e82421bf695bad4dd2dbe26740d5b8e13f21a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Axial stress</topic><topic>Contact pressure</topic><topic>Dynamic pressure</topic><topic>Engagement characteristics</topic><topic>Friction</topic><topic>Morphology</topic><topic>Multiple friction pairs</topic><topic>Pressure effects</topic><topic>Torque</topic><topic>Torque characteristics</topic><topic>Wet clutches</topic><topic>Wet friction clutch</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He-yun, Bao</creatorcontrib><creatorcontrib>Wei, Huang</creatorcontrib><creatorcontrib>Feng-xia, Lu</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Tribology international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He-yun, Bao</au><au>Wei, Huang</au><au>Feng-xia, Lu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Investigation of engagement characteristics of a multi-disc wet friction clutch</atitle><jtitle>Tribology international</jtitle><date>2021-07</date><risdate>2021</risdate><volume>159</volume><spage>106940</spage><pages>106940-</pages><artnum>106940</artnum><issn>0301-679X</issn><eissn>1879-2464</eissn><abstract>A kinematic coupling model of the rotation-axial engagement process of friction elements is established based on the oil film dynamic pressure lubrication and an elastic contact model of the asperities. The engagement characteristics of the multi-disc wet friction clutch are analyzed. The equation for the transmission torque of the clutch is derived by considering the axial movement of the friction elements and the surface morphology of the friction pairs. The influences of the piston pressure and the number of friction pairs on the speed and transmission torque of the clutch during engagement are analyzed considering the viscous torque and the contact torque. Finally, the effects of engagement pressure on the torque and engagement time of the clutch are verified.
•The coupling model of the rotation-axial engagement process of friction elements is established.•The ultimate shear stress of the lubricating oil is taken into account.•The shaft torsion stiffness and split spring between steel disc is taken into consideration.•The effect of the friction pairs number on clutch speed, torque and film thickness is analyzed.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.triboint.2021.106940</doi></addata></record> |
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| ispartof | Tribology international, 2021-07, Vol.159, p.106940, Article 106940 |
| issn | 0301-679X 1879-2464 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Axial stress Contact pressure Dynamic pressure Engagement characteristics Friction Morphology Multiple friction pairs Pressure effects Torque Torque characteristics Wet clutches Wet friction clutch |
| title | Investigation of engagement characteristics of a multi-disc wet friction clutch |
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