Tennis-Kinematics-Transient-Analysis-A-Ball-Spin-Racket-Collision-Description-

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1、TENNISKINEMATICSTRANSIENTANALYSIS:ABALLSPIN&RACKETCOLLISIONDESCRIPTIONDr.MILTIADISBOBOULOSDepartmentofMechanicalEngineeringTECHNOLOGICALEDUCATIONALINSTITUTEOFLARISSALARISSA,GREECETABLEOFCONTENTS1.Introduction.Briefdescriptionoftheproject._______________________12.ProjectIdentificationandDefini

2、tion_______________________________13.EquipmentRulesforTennisBalls_________________________________23.1CFDSeamSimulation________________________________________24.EquipmentRulesforTennisRackets______________________________34.1Qualitiesofmoderntennisrackets______________________________45.Kine

3、maticalanalysisoftheTennisgame___________________________96.Bio-mechanicalanalysisoftheTennisgame______________________127.Theoreticalgroundsofalternativephasemodels.__________________157.1Generalconditions__________________________________________157.2Collisionofmechanicalobjects_____________

4、___________________177.3Loadingthetennisracket_____________________________________218.Tennisequipmentdata_________________________________________278.1Collectinginformation_______________________________________278.2Experimentaldataforthebendingofthebodyofthetennisracketunderappliedexternallo

5、ad.__________________________________289.Groundsforsettinguptheprincipleconceptandarrangementofthetestrig_____________________________________299.1Analysisoftheracket-balldynamicinteractionsystem______________299.2Calculationsofthestrikingstrengthwhentheballhitsthestringarea___________________

6、__________________________________309.3Calculatingthetravellingspeedsofthetwocollidingsolidbodies:racketandball_____________________________________________349.4Themaximumballspeedwhenhittingtheracketandthebouncingballspeed.________________________________________________369.5Loadanalysisforth

7、eheadandbodyoftheracketandeventualoscillationsanddeformations._________________________________399.6Loadingtheframeandbodybythehorizontallyactingforce.Deformationestimations.____________________________________429.7Determiningtheforcesi