Research And Analysis Of The Wheelchair Comfortable Angles Based On Body Pressure Distribution

As the aging process accelerating in China, the number of elderly showed a growing trend. The incidence of the elderly diseases is increasing as a consequent and may lead to elderly bedridden. Meanwhile the amount of extremity disability is continually increasing. For their care is particularly important. While the workload can be reduced to use the Nursing-bed and Wheelchair for the nurses. Through the analysis of the structure and the function for nursing beds, we found that the transfer from bed to wheelchair is the most difficult. Therefore a research of a multifunctional nursing wheelchair bed which bound the bed and wheelchair together was presented in this paper.In this paper, the body pressure distribution was recorded in different angles of wheelchair seat surface by using X-Sensor system. Combine with the body subjective comfort evaluation, the comfort indicators of wheelchair were determined based on body pressure distribution, and the more comfortable angle of wheelchair seat surface was also obtained The study should provide a strong help for the comfortable wheelchair designing.In this paper, the size of each functional module of wheelchair were sized based on ergonomic principles. Modeling, assembly and motion simulation of the wheelchair were done based on UG3D modeling software. Standard components were selected, and to obtain the stress cloud diagram and deformation diagram and then verified the stability and strength requirements of the wheelchair, wheelchair were static analysised in different working posture based on ANSYS Workbench.The study of this paper combined the nursing bed and wheelchair together which made the transfer from bed to wheelchair freely, reduced the workload greatly for the nurses and improved the quality of life for the users.