圆台展开计算

单位:mm已知条件图示尺寸值小直径端内径d800大直径端内径D1500高度h2500壁厚σ10使用板幅1500σ中间计算项目计算尺寸值(dh/D-d)2892.857143d2/4164025(dh/D-d)2+d2/48532647.449h2+(D-d)2/46372500扇形的大端半径R5445.45扇形的小端半径r2921.07扇形中心展开角49.91r×cos(α/2)2648.25根据板幅需用块数2最后一块板弦长4595.78rRαb项目名称第二块第三块第四块第五块第六块该块扇形大端弦长B4423.865268.26033.686727.677356.84该块扇形小端弦长b3492.544423.865268.26033.686727.67该块扇形大端半径R5241.766242.197149.207971.498716.98该块扇形小端半径r4138.255241.766242.197149.207971.49扇形展开半角(弧度)0.440.440.440.440.44COS(半角)0.90660.90660.90660.90660.9066r*COS(半角)3751.764752.195659.26481.497226.98SIN(半角)0.421980.421980.421980.421980.42198公司专用切勿外传2465.284138.25江阴中绿化纤工艺技术有限公司ΦdΦDh圆台展开及排料计算0.9066040.4219832921.070.442648.25展开后数值表B第一块3492.54