433h。By using the DH5937 stress measurement system and sensor technology, the data of the bending moment and torque of the cutter shaft were simulated and measured, and a combined load spectrum of the bending torsion coupling of the cutter shaft was complied. Meanwhile, an estimated formula of the fatigue life of the cutter shaft bearing combined stresses was deduced by using Miner liner cumulative damage theory, and the fatigue life of the cutter shaft was estimated to be 443h longer than the designed life by using the load spectrum of bending torsion coupling.
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葛宜元,王金武,李世伟,孙文祎.整株秸秆还田机刀轴载荷谱编制与疲劳寿命估算[J].农业机械学报,2009,40(3):77-80. Compiling and Fatigue Life Estimation of the Cutter Shaft of the Whole-straw Recycling Machine[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):77-80.