[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fuPWWf-6VJAW1eg7MxL1jlBW_oDJVSP6jVIgXtQQsucc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":8,"question":15,"related":16,"source":27,"type":97},[],"2024-07-10 13:10:29",157913965,[],{"count":9,"courseId":10,"courseImg":11,"courseName":12,"workId":13,"workName":14},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","常用从动杆与凸轮轮廓的接触形式有______、______和______三种",[17,29,38,46,54,63,72,77,82,90],{"answer":18,"createTime":19,"id":20,"options":21,"question":26,"source":27,"type":28},[],"2024-07-03 15:27:09",157251552,[22,23,24,25],"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":30,"createTime":19,"id":31,"options":32,"question":37,"source":27,"type":28},[],157251553,[33,34,35,36],"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":39,"createTime":19,"id":40,"options":41,"question":45,"source":27,"type":28},[],157251554,[42,43,44],"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":47,"createTime":19,"id":48,"options":49,"question":53,"source":27,"type":28},[],157251555,[50,51,52],"永远等于0°","等于常数","随凸轮转角而变化","直动平底从动件盘形凸轮机构的压力角( )",{"answer":55,"createTime":19,"id":56,"options":57,"question":62,"source":27,"type":28},[],157251556,[58,59,60,61],"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":64,"createTime":19,"id":65,"options":66,"question":71,"source":27,"type":28},[],157251557,[67,68,69,70],"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":73,"createTime":19,"id":74,"options":75,"question":76,"source":27,"type":28},[],157251558,[33,34,35,36],"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":78,"createTime":19,"id":79,"options":80,"question":81,"source":27,"type":28},[],157251559,[33,34,35,36],"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":83,"createTime":19,"id":84,"options":85,"question":89,"source":27,"type":28},[],157251560,[86,87,88],"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":91,"createTime":19,"id":92,"options":93,"question":96,"source":27,"type":28},[],157251561,[94,95],"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( )",2]