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Wet clutch performance and durability: test bench design
2009 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Volvo CE manufactures heavy duty machinery. In almost all of the applications a gearbox with a wet clutch can be found. To further increase the effectiveness of the clutches new research is necessary. A lot of research has been done concerning different types of friction materials, oil and temperature. But research concerning how the pressure is applied to the clutch and how much power the clutch transfer has not been investigated. This thesis work aims to build test equipment that is able to control the pressure applied to the clutch. The test equipment should be able to measure load, pressure, temperature and wear of a clutch. Also the equipment should be designed with several of Volvo CE original components from the gearboxes. The rig was designed and built with the help of a designer at Volvo, engineers at Lulea University of Technology and the in house machine shop Centralverkstan. The design aimed to use the standard Volvo parts, have easy access to sensors and easy assembly/disassembly of the clutch. The test rig is operational and produces data that is comparable to the real applications. The performance of the rig is well within the requirements of specification. Approximately three engagements can be done in one minute. The acceleration of the rig can be done in less than 10 s and the engagement time is as low as 350 ms. With a hydraulic pressure of 2,4 MPa a torque of approximately 1080 Nm is generated with the specific running conditions of the rig.

Place, publisher, year, edition, pages
Keyword [en]
Technology, test rigg, test equipment, test bench, clutches, machine, element, wet clutches, mechanical engineering, wear, measure, wear, measure load, measure temperature, wet clutch test rigg, kopplingar, våta kopplingar, prov utrustning, kopplings rigg, maskinelement
Keyword [sv]
URN: urn:nbn:se:ltu:diva-53110ISRN: LTU-EX--09/040--SELocal ID: a2e008a6-2dbf-49ea-a1eb-2c8a4d5b8d24OAI: diva2:1026484
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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