Study On Ergonomic Simulation And Optimization Design Of Negative Pressure Isolation Chamber

In recent years,with the frequent outbreak of infectious diseases,negative pressure isolation cabins have become important medical supplies in epidemic prevention and control.It is mainly used for the isolation and transfer of patients with respiratory infectious diseases,to cut off the transmission route of pathogens during the transfer,to protect the external environment from pollution,and to reduce the infection probability of accompanying medical staff.Through research,it is found that there are various styles of negative pressure isolation cabins at home and abroad,and they have their own characteristics in terms of size,structure,material,color,etc.,but the ergonomics are yet to be studied.Improper man-machine size and structure will reduce work efficiency and increase the physical load of assemblers and medical staff.In the case of severe shortage of medical workers in the epidemic,it is of great significance to improve their work comfort and work efficiency,so it has certain research value.This thesis optimizes the negative pressure isolation cabin and improves the ergonomics of the negative pressure isolation cabin through user behavior research and ergonomic simulation experiments.This thesis fully understands the user’s operation process through research,sorts out user behavior,uses the MCH workload subjective evaluation method to extract typical tasks,uses 3D modeling software to create negative pressure isolation cabin products and ambulance internal environment models,and selects appropriate products according to product characteristics.Divide the human body and correct the size of the human body,build a human-machine-loop system in the simulation software JACK,use tools such as rapid upper limb assessment,lower back force,and work posture analysis to conduct simulation analysis,and find the existence of existence from the experimental analysis results.For the operating parts with human-machine defects,the optimal design scheme is explored by using the ECRS optimization design principle,and the size and structure of the negative pressure isolation cabin and various components are optimized to make it more in line with human-machine operation and improve the degree of human-machine adaptation.Finally,the optimized design scheme is simulated and verified again.Compared with the existing products,the simulation results show that the optimized negative pressure isolation cabin has better ergonomic evaluation,which can effectively reduce the physical workload of assemblers and medical staff.The research method is also applicable to the man-machine simulation optimization design of other products,and has certain reference value.