Optimization Study on the Comfort of Human-Seat Coupling System in the Cab of Construction Machinery

The seat of a construction machinery cab is used as the research object. For current human-seat coupling system comfort methods and optimization index deficiencies, body pressure vibration at same time optimized. Based on more specialized Toyota 50 percentile dummy model, finite element simulation model established, distribution response are simulated calculated. transverse longitudinal distributions backrest cushion map to verify model’s evaluation indexes. At time, test indexes model. results show that accuracy each established greater than 85%, which can provide support for subsequent work. In order improve during operation, hardness upper sponge lower layer reduced increased by 10% 15%, respectively, original seat. ischium peak pressure, mean thigh evaluate improved proposed scheme reduce comfort. Finally, verified four subjects in an seat, different while isolation rate increased, shows rationality scheme. addition, sizes, with most significant improvement subject height weight. modeling adopted paper reference design development