[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-LSrVc11xESvdigacyTwuCc6PbcIKHBFDU5VomiKdSI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":25,"type":26},[],"2023-05-13 23:26:56",9738170,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},16,"743ea00c1bc36eba7f03c526d076b56c","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff710fa9d4a0916573f88628fbf1d3db4.jpg","机械原理2023-2021年","b9f9ad2c5fe44be5a698c6992d6bd9d5","3.6小节测验","滚子从动件盘形凸轮机构中,基圆半径和压力角应在凸轮的实际廓线上来度量",[19,27,36,44,51,57,60,65,71,76],{"answer":20,"createTime":21,"id":22,"options":23,"question":24,"source":25,"type":26},[],"2023-05-10 18:25:05",4272692,[8,9],"设计凸轮机构时,基圆半径取值越小,压力角越小,凸轮机构传力特性越好","v1",3,{"answer":28,"createTime":21,"id":29,"options":30,"question":34,"source":25,"type":35},[],4272693,[31,32,33],"凸轮上接触点的法线与该点线速度","凸轮上接触点的法线与从动件的运动方向","凸轮上接触点的切线与从动件的运动方向","凸轮机构中的压力角是指( )间的夹角",0,{"answer":37,"createTime":21,"id":38,"options":39,"question":43,"source":25,"type":35},[],4272694,[40,41,42],"小于","大于","等于","设计滚子从动件外凸凸轮机构时,滚子半径要( )凸轮理论轮廓的最小曲率半径",{"answer":45,"createTime":46,"id":47,"options":48,"question":49,"source":25,"type":50},[],"2026-03-10 23:25:52",9738168,[],"一偏置直动平底从动件盘形凸轮机构,平底与从动件运动方向垂直,凸轮为主动件,该机构的压力角=( )&deg;",2,{"answer":52,"createTime":53,"id":54,"options":55,"question":56,"source":25,"type":50},[],"2026-03-09 20:06:31",9738169,[],"凸轮理论轮廓曲线上的点的某点的法线方向(即从动杆的受力方向)与从动杆速度方向之间的夹角称为凸轮在该点的____",{"answer":58,"createTime":5,"id":6,"options":59,"question":17,"source":25,"type":26},[],[8,9],{"answer":61,"createTime":53,"id":62,"options":63,"question":64,"source":25,"type":50},[],9742710,[],"在初步设计直动尖顶从动件盘形凸轮机构中发现有自锁现象时,可采用增大()、 适当选取从动件() 等办法来解决",{"answer":66,"createTime":67,"id":68,"options":69,"question":70,"source":25,"type":26},[],"2023-05-13 23:29:40",9742711,[8,9],"凸轮机构的压力角越小,则其动力特性越差,自锁可能性越大",{"answer":72,"createTime":67,"id":73,"options":74,"question":75,"source":25,"type":26},[],9742712,[8,9],"滚子从动件盘形凸轮的压力角必须在实际轮廓曲线上度量",{"answer":77,"createTime":78,"id":79,"options":80,"question":81,"source":25,"type":26},[],"2023-05-22 23:50:36",24990517,[8,9],"平底直动从动件盘形凸轮机构的压力角始终等于零"]