A viscous damper， as used on a marine diesel， is a sealed precision built device which dampens the torsional vibrations in the （）.
A viscous damper， as used on a marine diesel， is a sealed precision built device which dampens the torsional vibrations in the （）.
Since concrete is a kind of elastoplastic materials, when calculating the torsional bearing capacity of plain concrete member, elastic analysis method should be adopted.
Since concrete is a kind of elastoplastic materials, when calculating the torsional bearing capacity of plain concrete member, elastic analysis method should be adopted.
Since concrete is a kind of elastoplastic materials, when calculating the torsional bearing capacity of plain concrete member, elastic analysis method should be adopted. A: 正确 B: 错误
Since concrete is a kind of elastoplastic materials, when calculating the torsional bearing capacity of plain concrete member, elastic analysis method should be adopted. A: 正确 B: 错误
When calculating the bearing capacity of members under combined load of shear and torsion, the interaction relation between shear and torsion should be considered for concrete bearing capacity while the reinforcement bearing capacity is just the linear superposition of shear bearing capacity and torsional bearing capacity of reinforcement.
When calculating the bearing capacity of members under combined load of shear and torsion, the interaction relation between shear and torsion should be considered for concrete bearing capacity while the reinforcement bearing capacity is just the linear superposition of shear bearing capacity and torsional bearing capacity of reinforcement.
In the fixedly combined circular shaft shown in the figure, the central part of the material is steel, shear modulus G1=80GPa, the outer material is copper and the shear modulus G2=39GPa. The distribution of shearing stress on cross section is___after torsional deformation. ① ② ③ ④http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e48a2be70d9f4eec8d38b0270076b6e2.png
In the fixedly combined circular shaft shown in the figure, the central part of the material is steel, shear modulus G1=80GPa, the outer material is copper and the shear modulus G2=39GPa. The distribution of shearing stress on cross section is___after torsional deformation. ① ② ③ ④http://image.zhihuishu.com/zhs/onlineexam/ueditor/201904/e48a2be70d9f4eec8d38b0270076b6e2.png
The prismatic transmission shaft is shown in the figure. Wheels B and D are driving wheels and wheels A, C ,E are driven wheels. If the input powers on driving wheels B and D are equal, the output powers on driven wheels A, C and E are equal too, and if only torsional deformation is considered and bending deformation is not considered, the position of dangerous section is ( ).[img=385x158]1803a368564fb94.png[/img] A: Only in segment AB; B: In segment BC; C: In segment CD; D: In segment AB and segment DE.
The prismatic transmission shaft is shown in the figure. Wheels B and D are driving wheels and wheels A, C ,E are driven wheels. If the input powers on driving wheels B and D are equal, the output powers on driven wheels A, C and E are equal too, and if only torsional deformation is considered and bending deformation is not considered, the position of dangerous section is ( ).[img=385x158]1803a368564fb94.png[/img] A: Only in segment AB; B: In segment BC; C: In segment CD; D: In segment AB and segment DE.