>> P.301
정격하중과수명동등가하중3표하중방향에따른환산계수기본동정격하중의방향과는다른방향의부하가가해질때나복합하중이FrFr가해질때는동등가하중을구하여정격수명을산출합니다.각방향의하중에서하방향및횡방향의환산하중을구합니다.FaFaFre=krFr+M0+C0—TXMX..............................................................(6)리니어웨이·리니어롤러웨이리니어웨이H가로설치형Fae=kaFa+MY.................................................................................(7)C0—T0C0—TYC0—T0C0—TY[리니어웨이H가로설치형(LWHY)의경우]Fae=kaFa+M0+C0—TXMX.............................................................(8)Fre=krFr+MY...................................................................................FrFa(9)리니어웨이모듈시리즈명과크기볼유지식볼비유지식15~3035~458~1215~3035~6515~3035~45(1)33~4269LWFH25,3040~86C루브리니어웨이L리니어웨이LC루브리니어웨이LVC루브리니어웨이VC루브리니어웨이E리니어웨이E저소음리니어웨이EC루브리니어웨이H리니어웨이H리니어웨이H가로설치형리니어웨이FC루브리니어웨이UL리니어웨이UC루브리니어롤러웨이수퍼X리니어롤러웨이수퍼X리니어롤러웨이X리니어웨이모듈LWLMLRWM환산계수krFr≧0111111111111111111111Fr<01111.2311.191111.1911111.19111111ka1.190.841.191.3511.2811.1911.2810.840.9511.191.281.191110.730.58주(1)ka의상단은우측방향을,하단은좌측방향을나타냅니다.하방향및횡방향의환산하중에서동등가하중을구합니다.P=XFre+YFae............................................................................................(10)여기서P:동등가하중NX,Y:동등가하중계수(표4참조)Fre:하방향환산하중NFae:횡방향환산하중N4표동등가하중계수구분Fre≧FaeFre<FaeX10.6Y0.61여기서Fre:하방향환산하중NFae:횡방향환산하중NFr:하방향하중NFa:횡방향하중NM0:T0방향모멘트N·mMX:TX방향모멘트N·mMY:TY방향모멘트N·mkr,ka:하중의방향에따른환산계수(표3참조)C0:기본정정격하중NT0:T0방향정정격모멘트N·mTX:TX방향정정격모멘트N·mTY:TY방향정정격모멘트N·m3-7
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