[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVEgwwJZ7X6ZfgVQ7TB-vTWxO4z5C9masoGxsSK9TjrU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":11,"question":18,"related":19,"source":29,"type":30},[],"2024-07-03 15:27:09",157251555,[8,9,10],"永远等于0°","等于常数","随凸轮转角而变化",{"count":12,"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},21,"c979ec4e5f6687513e11eac45951c30d","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff03f74b977bd1485ff92c188545e5bc9.jpg","机械设计基础A1--机械原理","work_34896447","第四章凸轮机构章节测验","直动平底从动件盘形凸轮机构的压力角( )",[20,31,40,48,51,60,69,74,79,87],{"answer":21,"createTime":5,"id":22,"options":23,"question":28,"source":29,"type":30},[],157251552,[24,25,26,27],"尖顶式从动杆","滚子式从动杆","平底式从动杆","以上均不对","对于较复杂的凸轮轮廓曲线,也能准确地获得所需要的运动规律","v1",0,{"answer":32,"createTime":5,"id":33,"options":34,"question":39,"source":29,"type":30},[],157251553,[35,36,37,38],"将产生刚性冲击","将产生柔性冲击","没有冲击","既有刚性冲击又有柔性冲击","凸轮机构的从动件选用等速运动规律时,其从动件的运动( )",{"answer":41,"createTime":5,"id":42,"options":43,"question":47,"source":29,"type":30},[],157251554,[44,45,46],"低速","中速","高速","凸轮机构从动件的等速运动规律适用于( )场合",{"answer":49,"createTime":5,"id":6,"options":50,"question":18,"source":29,"type":30},[],[8,9,10],{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":29,"type":30},[],157251556,[55,56,57,58],"增大滚子半径","减少基圆半径","减小滚子半径","增加基圆半径","在设计直动滚子从动件盘形凸轮机构时,若发生运动失真现象,可以( )",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":29,"type":30},[],157251557,[64,65,66,67],"直动滚子从动件盘形凸轮机构","摆动滚子从动件盘形凸轮机构","直动平底从动件盘形凸轮机构","摆动从动件圆柱凸轮机构","在下列凸轮机构中,从动件与凸轮的运动不在同一平面中的是( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":73,"source":29,"type":30},[],157251558,[35,36,37,38],"凸轮机构的从动件选用余弦加速度运动规律时,其从动件的运动( )",{"answer":75,"createTime":5,"id":76,"options":77,"question":78,"source":29,"type":30},[],157251559,[35,36,37,38],"凸轮机构的从动件选用匀加速匀减速运动规律时,其从动件的运动( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":86,"source":29,"type":30},[],157251560,[83,84,85],"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",{"answer":88,"createTime":5,"id":89,"options":90,"question":93,"source":29,"type":30},[],157251561,[91,92],"实现任意预期的从动件运动规律","承载能力大","凸轮机构的主要优点是( )"]