融合体压分布的坐姿人体生物力学载荷分析

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中图分类号：U461.4 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202312025

Abstract：Inordertoexplorethecorrelationbetweenseatedbodypresuredistributionandbiomechanicallading，asetupscheme forthehuman-chaircontactsurfaceforhumanbiomechanicalmodelingisproposedusingbodypresure informationasaguide.The contactbetweenthehumanbodyandtheseatissimulatedbyacertainnumberofcontactpoints，andbasedontheexperimental bodypressuredistributiondata，theelativecontactstrengthissetastherelative magnitudeoftheaveragepressureineachpartition of thebodypressurecloudmap.Throughcomparison，itisdiscoveredthattheaveragecontactstrengthissetbetween20600， whichcanimprovethesolutionaccuracyandtakeintoaccounttherealmuscleactivationeffect.Atthesame time，theschemeof diferentnumbersofcontactpointswasdiscussed，anditismorereasonabletochoosetset8contactpointsinacomprehensive view.Aftercomparingwiththeexperimentaldataintheliterature，itisshownthatthecontactschemebasedonthebodypresure distributionofthehumanchairbiomechanicalmodelcanacuratelyreflectthemuscleactivation，jointforceandotherbiomechani calindicators.Muscleactivationand jointforcesunderhardwood planksandfoamcushions werecompared basedonacontact scenario setup，explaining the reasons for more comfortable foam seating from a biomechanical point of view.

Keywords： musculoskeletal model; body pressure distribution;seat comfort;muscle activation

坐姿舒适性领域常见的客观评价方法主要包括体压分布1和姿态测试2等，但在揭示人体坐姿不舒适的内在生物机理方面都存在限制。（剩余13362字）