[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fGtU5rDJOAHUpPL_uA7avtK1rrOinYYzCgqdgGRaeJ14":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-11-08 23:23:55",230958556,[8,9,10,11],"改善传动的平稳性","提高轮齿的弯曲疲劳强度","提高齿面的接触疲劳强度","提高轮齿的静强度",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},305,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_47648557","第一章中国国防","对于圆柱齿轮传动,保持齿轮的分度圆直径不变而减小模数时,可以",[21,32,41,49,58,61,70,78,86,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],230958552,[25,26,27,28],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff14b1f247150b3928cd460694682a578.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1ea4165ded7d7d9eb274052c965446a8.png\">","b1=b2","d1=d2","一对标准直齿圆柱齿轮接触强度相等的条件是","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],230958553,[36,37,38,39],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd058a46ce6d7863eebb062bdf0e90c4d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4e6942dec97050664c0af86d74506194.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F92ac5bd4432d9599af4c365727ec2f4d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff94aff0f59d9137083b27ebbddc12488.png\">","一标准直齿圆柱齿轮传动,其他条件均不变,仅将齿轮的宽度增大一倍,则轮齿的齿根弯曲应力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5ced4c8aff804bdac2c11e5cdb057005.png\">与原来的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2d559ec12ffd477d1f9b68452536e67d.png\">相比较,有",{"answer":42,"createTime":5,"id":43,"options":44,"question":48,"source":30,"type":31},[],230958554,[45,9,46,47],"提高齿轮的接触疲劳强度","弯曲与接触强度都不变","弯曲与接触强度都提高","直齿圆柱齿轮设计中,若中心距不变,增大模数m,则",{"answer":50,"createTime":5,"id":51,"options":52,"question":57,"source":30,"type":31},[],230958555,[53,54,55,56],"相同","第2个比第1个大","第1个比第2个大","承载能力与模数无关","两个齿轮的材料、齿宽、齿数都相同,模数m1=2mm,模数m2=4mm,则它们的弯曲强度",{"answer":59,"createTime":5,"id":6,"options":60,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":62,"createTime":5,"id":63,"options":64,"question":69,"source":30,"type":31},[],230958557,[65,66,67,68],"弯曲强度和接触强度均提高","弯曲强度不变,接触强度提高","弯曲强度和接触强度均不变","弯曲强度提高,接触强度不变","设计一对齿轮传动时,若保持传动比和齿数不变而增大模数,则齿轮的",{"answer":71,"createTime":5,"id":72,"options":73,"question":77,"source":30,"type":31},[],230958558,[74,36,75,76],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fea0f215e9b2d1ce65115c3ea7bd4a47b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F306834e3c5b390c351d2527d49819141.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F50e86a6767e27caf714f1ceaa8077acb.png\">","一标准直齿圆柱齿轮传动,其他条件均不变,仅将齿轮的齿数增大一倍,则轮齿的齿根弯曲应力\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5ced4c8aff804bdac2c11e5cdb057005.png\">与原来的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2d559ec12ffd477d1f9b68452536e67d.png\">相比较,有",{"answer":79,"createTime":5,"id":80,"options":81,"question":85,"source":30,"type":31},[],230958559,[82,83,84],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F831432eb073e9912d250a2e37dd8d19a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff4de7da70ecfd8c07100d9a1aa59df97.png\">","比较\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9d2357b8d8541a4040ec947589b95e25.png\">和\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F33baca055819870e5d0a53d40cadc83c.png\">较大者强度高","比较两个齿轮的接触强度,可以用 来判别",{"answer":87,"createTime":5,"id":88,"options":89,"question":96,"source":30,"type":97},[],230958560,[90,91,92,93,94,95],"增大模数","减小齿根过渡圆角半径","负变位","提高齿面硬度","降低表面粗糙度,减小加工损伤","增大齿宽","提高齿根弯曲疲劳强度的措施有",1,{"answer":99,"createTime":5,"id":100,"options":101,"question":107,"source":30,"type":97},[],230958561,[102,103,104,105,106,95],"增大小齿轮分度圆直径d1","采用正传动","降低齿面硬度","减低粗糙度,提高加工精度","d1不变,增大齿数","提高轮齿接触疲劳强度的措施有"]