منابع مشابه
Research on the Marine Shafting Torsional Vibration with Gears Transmission
Abstract The torsional vibration of marine propulsion shafting has been studied for more than a century. With abundant research achievements and experiences, a systematic approach of vibration calculation has been put forward for ship industrial applications. However, literature review indicates that when processing the gear transmission in the shaft line, the meshing motion has been treated as...
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Ordinarily, gears and belt drives are used for uniform transmission of rotations between parallel axes. Here we focus on the nonuniform case, i.e., with non-constant transmission ratio. We treat the geometry of tooth profiles and pulleys and their algorithmic computation. Concerning gears, we recall a method due to S. Finsterwalder. Concerning belt drives, we study their relation to tooth profi...
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There were severe pitting corrosions on the surface of transmission gears in diesels. The cause of metal fatigue pitting of gear surface is analyzed in the paper, which based on the contact fatigue experiment of 18Cr2Ni4WA carburizing and quenching gears used in the diesel engine. Causes of pitting on harden tooth surface are studied from three aspects: gear surface residual stress field, oil f...
متن کاملAnalysis of Crack Severity on Power Density Increment of Gears
Helical gears are commonly used in industry as they have advantages of higher power density, quieter operation etc., compared to spur gears. Conventional gear design is based on various design criteria, including durability and bending strength load rating. In recent times, fracture failure modes are gaining importance in addition to conventional failure modes. Stresses due to operating fatigue...
متن کاملLubricating gears with synthetic OiLs
wind gearbOx technOLOgy is developing at a fast pace, not least due to operators demanding ever more power and efficiency. Experience has shown that the lubricant used is a crucial factor in meeting the wish for ever-increasing performance. Besides strictly technical requirements, aspects of economy and ecology are receiving more and more attention in lubricant selection. The technical requirem...
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ژورنال
عنوان ژورنال: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
سال: 2016
ISSN: 0954-4062,2041-2983
DOI: 10.1177/0954406216645042