文档介绍：FlyWithConfidenceSummaryWedevelopamodeltodesignapileofcardboardboxesforcushioning・Themodelisbasedonconservationofenergy:icenergyofthestunt-motorcyclesystemisconsumedthroughbreakingdownboxes・:theuppersurface,thesidesurfacesandtheverticaledges・etotheconclusionthattheuppersurfaceprovidesthemainsupportingforcewhenbigboxesareusedwhiletheverticaledgesplayagreatrolewhensmallonesareused・Afterthemicroscopicanalysis,heconceptofdensityofenergyabsorptiontorepresentthemacroscopicpropertyofthepile・Takingtheprimaryconsiderationofthemaximumimpulseapersoncanbear,alongwiththecameraeffectandcostconcerns,,,,runsoffastage,jumpsoveranelephant,landsonaboxpile,crashesin,andstopswiththecushioningeffectoftheboxes・ThissceneresemblesthatinTomorrowNeverDiesexceptthatinourmodel,,, -motorcyclesystemisauniform-,duringthejump-overprocess,weonlyneedtoconsiderthemovementofitsmasscenter,soweconsiderthestunt motorcyclesystemasamassparticle・Thecardboardboxesaremadeofsamematerials*Inourmodel,weusethepropertiesofS-lcardboard[1].,smallcard