美国麻省理工大学：《Aerospace Dynamics（航空动力学）》英文版 lecture 13

LECTORE *13 AXISYMMETRIC ROTATION S B00￥cNEs SPACE CowES PRECESSI0N,NUτAToA GrEDMETRIC IATE RARETATIONS

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RECALL FRoM BEFORE 工>工3+合>8 H(RE H (0s 工,中自< zI h BODY CONE Space cone ROLLS ON FIXED SPACE CoNE < Bod cone X2 ALWAYS忏 Space cone LINE oF 1 ANGENACY OF T毛 2c0E5 cone

ER丌10A0FE、AM0丹BrR 工 S CALLED PRECESS|oN BUT WE HAVE TWO OIFF ERENT TYPES oF QR6ESs0NH歌E DFFERENTiATE BETWEEN THEM ByHow esA0升REM0v心R丁T七CH ONHER 0 ETERMINE06y入“ SINCE X () THEA工F 工;(0s) 入 WHEN Ao DIRECT PRECESS/O THIs D( FFERENCE TS NoT SoMETHING THAT CAN NORMAUY8Es巨EN