Research Article
Dimensional and Layout Optimization Design of Multistage Gear Drives Using Genetic Algorithms
| | Parameters | Value |
| | Transmitted power (kW) | 10 | | Input speed (rpm) | 960 | | Gearbox ratio | 25 | | Lower limit of gear ratio | 1 | | Upper limit of gear ratio | 5 | | Number of stages | 3 | | Pressure angle (degree) | 20 | | Application factor KA | 1.25 | | Gear material | 20CrMnTi | | Heat treatment of gear material | Carburized and case-hardened | | Hardness of gear material (HRC) | 56∼62 | | Shaft material | 45 steel | | Heat treatment of shaft material | Tempering treatment | | Bending stress limit (MPa) | 460 | | Contact stress limit (MPa) | 1500 | | Minimum safety factor for bending | 1.25 | | Minimum safety factor for contact | 1.1 | | Allowable torsional stress of shaft (MPa) | 35 |
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