[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fN8X58zh05WDJIkxRCTSKbPyZhmogRKuPo3xdjEvwBUI":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":23,"type":24},[],"2026-04-20 13:38:59",1092805921,[8,9,10,11],"求支反力","列出弯矩方程M(x)","求偏导数\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe4706a91f5931144efc8cb4ac402a033.webp\">","积分求出位移",{"courseId":13,"courseImg":14,"courseName":15,"workId":16,"workName":17},"1000007734","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F731aea83d8ade6d45d5f8f7575c967fb.jpg","材料力学","64348168","第十五章单元测试","用卡氏定理求刚架某点的位移时,若该处没有与位移相应的荷载,则可在该处添加一与所求位移对应的广义力P.在( )后,即可令P=0,然后计算出所求位移",[20,25,33,45,54,63,72,83,92,101],{"answer":21,"createTime":5,"id":6,"options":22,"question":18,"source":23,"type":24},[],[8,9,10,11],"v2",0,{"answer":26,"createTime":5,"id":27,"options":28,"question":31,"source":23,"type":32},[],1092805922,[29,30],"对","错","外力功与外力的终值和加载次序有关",3,{"answer":34,"createTime":5,"id":35,"options":36,"question":43,"source":23,"type":44},[],1092805929,[37,38,39,40,41,42],"两组荷载必须是加在同一个结构上的","两组荷载必须同时加在结构上","两组荷载同时作用在结构上时,结构仍然是线弹性的","两组荷载必须是同一种量纲(或单位)的","功的互等定理与两组荷载的加载次序无关","功的互等定理与两组荷载的作用位置无关","关于功的互等定理的下述理解中,正确的有( )",1,{"answer":46,"createTime":5,"id":47,"options":48,"question":53,"source":23,"type":24},[],1092805939,[49,50,51,52],"不做功","做正功","做负功,其值为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe95804054c698c970101884493e8fb8c.webp\">","做负功,其值为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F87c14cbfd70678cac9457b538902ea89.webp\">","如图所示悬臂梁,当单独作用力F时,截面B的转角为θ,若先加力偶M,后加F,则在加F的过程中,力偶M( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff69e31206eb9b7b6276db36f7a881cdb.png\">",{"answer":55,"createTime":5,"id":56,"options":57,"question":62,"source":23,"type":24},[],1092805947,[58,59,60,61],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9d66e1b0277de95db52a334e469976db.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdca308b7033bdad4c038cd47fe50672e.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4a7d43391e80214639426ae51bd0aeb0.webp\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc99f9c0de15382ff5d3c13d9e14fde7b.webp\">","同一简支梁在图示两种不同单位载荷作用下产生变形,指出下列关系中正确的是( ) .\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8873ec24f500ffec87d65e459c7852b6.png\">",{"answer":64,"createTime":5,"id":65,"options":66,"question":71,"source":23,"type":24},[],1092805965,[67,68,69,70],"应变能相同,自由端扭转角不同","应变能不同,自由端扭转角相同","应变能和自由端扭转角均相同","应变能和自由端扭转角均不同","一圆轴在图所示两种受扭情况下,其( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F0ae87c7f7d528ef66afcb12f10c89e81.webp\">",{"answer":73,"createTime":5,"id":74,"options":75,"question":82,"source":23,"type":44},[],1092805978,[76,77,78,79,80,81],"对构件加上两个荷载,在弹性范围内,先加第一个后加第二个,与先加第二个后加第一个,最后的应变能是相等的","对于加载过程,应变能是正的,对于卸载过程,应变能是负的","对于某个圆轴,轴向拉伸力单独作用产生的应变能为 2 焦耳,转矩单独作用产生的应变能为 3 焦耳,两者共同作用所产生的应变能则为 5 焦耳","对于某个圆轴,轴向拉力F1单独作用产生的应变能为 2 焦耳,轴向拉力F2单独作用产生的应变能为 3 焦耳,两者共同作用所产生的应变能则为 5 焦耳","应变能不可能大于外力的功","应变能恒等于外力的功","在下列关于应变能表述中,正确的有( )",{"answer":84,"createTime":5,"id":85,"options":86,"question":91,"source":23,"type":24},[],1092806032,[87,88,89,90],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fda4765ae55c62841d5010b7530000cf2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd5bb73f0b1aee8057bfeddaa920fa1a3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc98eedc904d633e0703b0f0eec33742e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3fa9693d156996a2e94ad9144af7aac4.png\">","图示杆件的拉压刚度为EA,其应变能的下列表达式中正确的是( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa5bd3615b5194d875a358f982351fc46.webp\">",{"answer":93,"createTime":5,"id":94,"options":95,"question":100,"source":23,"type":24},[],1092806175,[96,97,98,99],"第一种大","第二种大","第三种大","一样大","悬臂梁如图所示.加载次序有下述三种方式:第一种为F、Me同时按比例施加;第二种为先加F、后加Me;第三种为先加Me、后加F;在线弹性范围内它们的应变能为( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc6c974bc1db6435d305d4153c229465f.png\">",{"answer":102,"createTime":5,"id":103,"options":104,"question":105,"source":23,"type":32},[],1092806202,[29,30],"如图所示结构,在应用单位荷载法求位移时,欲求图(c)中AE两点的相对线位移,则在A、E两点加一对反向并沿AE连线的单位力.\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3bd28f526c045b77978796a75262343e.webp\">"]