>> P.311
슬라이드유닛간거리.............ℓ스트로크길이...........................분당왕복횟수...........................최대이동속도..........................가속시간...................................등속운동시간...........................감속시간...................................구동위치........................................................................Sn1Vt1t2t3YdZd=========200mm500mm6min-1100mm/s0.1s4.9s0.1s60mm-20mm스트로크워크중심위치(X2,Y2,Z2)테이블중심위치(X1,Y1,Z1)Z워크의관성력테이블의관성력유닛2Y구동위치(Yd,Zd)0ℓℓ/2ℓ/2유닛1Xt2시간St3응용계산예예2사용리니어웨이.......................MH45C2R1050H74600N80200N1610N·m100kg50mm0mm80mm1000kg200mm10mm130mm기본동정격하중.......................기본정정격하중.......................T0방향정정격모멘트............테이블질량...............................테이블중심위치............................................................워크질량...................................워크중심위치..........................................................................CC0T0m1X1Y1Z1m2X2Y2Z2===========Zm2gm1g0t1속도mm/sMr=m1gY1+m2gY2≒98000Mp=m1gX1+m2gX2≒2010000My=0[정지감속일때]Mr=m1gY1+m2gY2≒98000Mp=-m1(Z1-Zd)-m2Vmax—1000×t3Vmax—1000×t3(Z2-Zd)+m1gX1+m2gX2≒1850000My=m1Vmax—1000×t3(Y1-Yd)+m2Vmax—1000×t3(Y2-Yd)≒-56000여기서Mr:롤링방향모멘트N·mmMp:피칭방향모멘트N·mmMy:요잉방향모멘트N·mmfW는1.5로가정합니다.슬라이드유닛에작용하는하중의산출부하하중및테이블의질량과관성력에따라리니어웨이에는다음과같은각좌표축주변의모멘트가발생합니다.[발진가속일때]Mr=Σ(FYZ)+Σ(FZY)=m1gY1+m2gY2=100×9.8×0+1000×9.8×10≒98000Mp=Σ{FX(Z-Zd)}+Σ(FZX)=m1Vmax—1000×t1(Z1-Zd)+m2Vmax—1000×t1(Z2-Zd)+m1gX1100000×0.1—1×(80+20)+1000×100000×0.1—1=100×+m2gX2×(130+20)+100×9.8×50+1000×9.8×200≒2169000My=-Σ{FX(Y-Yd)}+Σ(FYX)100000×0.1—1×(0-60)-1000×000×0.1—1=-100××(10-60)≒56000=-m1(Y1-Yd)-m2Vmax—1000×t1100Vmax—1000×t1(Y2-Yd)3-17예2의조건일때의수명시간과정적안전계수를산출합니다.또한하중계수[등속운동일때]
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