举一反三
- 中国大学MOOC: 图示体系中,杆AB、杆BC和杆BCE都不能看作连杆。http://edu-image.nosdn.127.net/52DC75AA8CF8D0C25E6502B28E40AF74.png?imageView&thumbnail=890x0&quality=100
- 图示体系的柔度系数等于()。http://edu-image.nosdn.127.net/3F19C7A36494A5161F885ED0758368B0.png?imageView&thumbnail=890x0&quality=100
- 求图示体系的动力自由度(不计杆件轴向变形):[img=177x138]1803787ba5fbf07.png[/img] A: 2 B: 3 C: 4 D: 5
- 求图示体系的动力自由度(不计杆件轴向变形):[img=177x138]18034e8f682228e.png[/img] A: 2 B: 3 C: 4 D: 5
- 中国大学MOOC: 图示结构杆BC的轴力为:http://edu-image.nosdn.127.net/9D6AA89720C3073F177361898172AD5F.JPG?imageView&thumbnail=890x0&quality=100
内容
- 0
中国大学MOOC: 图示结构杆1的轴力为0。http://edu-image.nosdn.127.net/9BB321A7C041A8F5A390E3629579625D.JPG?imageView&thumbnail=890x0&quality=100
- 1
中国大学MOOC: 图示体系中AB杆和BC杆是折杆,所以不能看作二元体。http://edu-image.nosdn.127.net/667B3B5D42A486200D168CCA37FF7542.png?imageView&thumbnail=890x0&quality=100
- 2
中国大学MOOC: 下图中,若http://edu-image.nosdn.127.net/3CC508F9AB3640FC7B4FC8A56BCC3C4A.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/1E98E4093ED9A9CF99D5410CB4F9E5FC.png?imageView&thumbnail=890x0&quality=1000011,求http://edu-image.nosdn.127.net/C431073D6B6C788B674E11D5E7EA9B8F.png?imageView&thumbnail=890x0&quality=100( )。http://edu-image.nosdn.127.net/3F2606B33B97941F5DFADC9F32BD58AD.png?imageView&thumbnail=890x0&quality=100
- 3
中国大学MOOC: 考虑各杆件轴向变形,图示结构若用边界条件先处理法,结构刚度矩阵的容量为()http://edu-image.nosdn.127.net/6F66123F6B6A90CF35B3988F8BA60297.png?imageView&thumbnail=890x0&quality=100
- 4
中国大学MOOC: 实腹式轴压杆绕x,y轴的长细比分别为http://edu-image.nosdn.127.net/CEDDCE7A3BB52B52DC56A37DE9DF8675.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/2715192C2D5C066B84F9EEC130D1DD78.png?imageView&thumbnail=890x0&quality=100,对应的稳定系数分别为http://edu-image.nosdn.127.net/051E7EF77A20CC8EE7AE73090D7D0B9F.png?imageView&thumbnail=890x0&quality=100,http://edu-image.nosdn.127.net/CDC96ACA4577E26B3DE9DBF3AFBCEC46.png?imageView&thumbnail=890x0&quality=100,若http://edu-image.nosdn.127.net/991E5D4B35F3193105567CAF1B1CB1EC.png?imageView&thumbnail=890x0&quality=100,则( ) 。