Gears play an important role in mechanical engineering because of their moment and speed transmission possibilities. Design and optimization of a complete gearbox provide many requirements to the designer. The complex...Gears play an important role in mechanical engineering because of their moment and speed transmission possibilities. Design and optimization of a complete gearbox provide many requirements to the designer. The complex gearbox model consists of many machine elements （shafts, gears, bearings, housing, seals, and shaft-hub connections）. The gearbox must be understood as a system with interactive parts. Next to the calculation of kinematics, load capacities and life times of single elements, aspects of load distribution and efficiency and noise excitation of gearboxes become important. The wide range of knowhow needed mostly cannot be covered by a small number of engineers. The development of automated calculation routines with understandable and comprehensive results is the goal for these research projects that lead to sottware-realizing solutions for engineers to efficiently design, calculate, optimize and verify gearboxes with minimal resources in terms of calculation experts and time.展开更多
Tooth surface wear damage is one of the main causes of gearing system failure.Excessive wear leads to tooth profile loss and an increase in transmission errors,as the worn gear surfaces are no longer conjugate.Thus,th...Tooth surface wear damage is one of the main causes of gearing system failure.Excessive wear leads to tooth profile loss and an increase in transmission errors,as the worn gear surfaces are no longer conjugate.Thus,the enhancement of gear durability against wear is important for gear application.Recent works show that cutter modification can aid in reducing the tool wear in gear processing,while the wear performance of the gears produced by modified cutters is still unknown.Therefore,this study focuses on the wear performance of the gear generated by modified cutter.Numerical results show that the wear resistance can be enhanced through proper cutter modification.展开更多
文摘Gears play an important role in mechanical engineering because of their moment and speed transmission possibilities. Design and optimization of a complete gearbox provide many requirements to the designer. The complex gearbox model consists of many machine elements （shafts, gears, bearings, housing, seals, and shaft-hub connections）. The gearbox must be understood as a system with interactive parts. Next to the calculation of kinematics, load capacities and life times of single elements, aspects of load distribution and efficiency and noise excitation of gearboxes become important. The wide range of knowhow needed mostly cannot be covered by a small number of engineers. The development of automated calculation routines with understandable and comprehensive results is the goal for these research projects that lead to sottware-realizing solutions for engineers to efficiently design, calculate, optimize and verify gearboxes with minimal resources in terms of calculation experts and time.
基金The authors would like to thank the National Natural Science Foundation of China(Nos.51805062 and 51805060)for their support in conducting this research.
文摘Tooth surface wear damage is one of the main causes of gearing system failure.Excessive wear leads to tooth profile loss and an increase in transmission errors,as the worn gear surfaces are no longer conjugate.Thus,the enhancement of gear durability against wear is important for gear application.Recent works show that cutter modification can aid in reducing the tool wear in gear processing,while the wear performance of the gears produced by modified cutters is still unknown.Therefore,this study focuses on the wear performance of the gear generated by modified cutter.Numerical results show that the wear resistance can be enhanced through proper cutter modification.
