| 1. | Most sea stars have five arms ( or a multiple of five )
大部分的海星有5支臂或若干组5支臂。 |
| 2. | Moving velocity programming of the supporting cylinders of double triangle boom
双三角钻臂支臂缸运动速度的策划 |
| 3. | The fracture failure analysis and prevention of front sloping supporting arm
飞机前支柱斜撑杆支臂断裂分析及预防 |
| 4. | Boom type excavating machine
支臂式掘进机 |
| 5. | Research on the dynamic stablity of arms in the radial gate under eccentric loading
偏心荷载作用下弧形闸门支臂的动力稳定性研究 |
| 6. | Based on the analyzing results , the eccentric loading increased the dynamic - instability district of the arm and would be adverse to its dynamic - stability
结果表明，荷载偏心增大了支臂的动力不稳定区域，不利于支臂的动力稳定。 |
| 7. | The dynamic - instability of radial gate was always due to the instability of arm under dynamic loading action , the security of gate spillway was dominated by the dynamic stability of arms
摘要弧形闸门的动力失稳往往是由于支臂在动力荷载作用下丧失动力稳定的，支臂的动力稳定与否控制着整个水闸的泄洪安全。 |
| 8. | But the welding program is complicated and the construction is very difficult so that the welding deformation and welding quality should be seriously controlled
转子中心体与支臂连接采用工地组焊施工，可使转子支架整体性能好，能够保证转子组装质量，但焊接程序复杂、施工难度大，必须严格控制焊接变形和焊缝质量。 |
| 9. | For a project instance , it computes and analyzes the structure of madian radial gate with fem , which achieves the result of gate ' s structural stress , stiffness and surpport - bar ' s stability and gives comparative analysis
作为工程实例，对马甸弧形闸门的结构进行了有限元计算和分析，得到了闸门的结构应力、刚度以及支臂稳定的计算结果，并给予了比较分析。 |
| 10. | In this paper , ansys , the software on finite element analysis , is made use of processing the static and modal analysis on the preliminary models and its " modified ones . by analyzing the results , we can conclude that the stresses on the components of the modified models are tended to equilibration and the location of the branches " brace can also influence stresses and translations on the branches . in addition , the values of the intrinsic frequencies on modified models " are larger than the ones on preliminary models , but the ranges of the frequencies on both models are almost same
传统的弧形闸门的支臂结构基本上都是三角架式的，这主要是因为按平面体系进行计算的传统设计方法忽略了结构的整体性及弧形闸门的空间结构特点，设计得比较保守，而实际上，将其改为a型结构也存在可行性，本文是利用有限元分析软件? ? ansys对原模型及修改模型分别进行静态和固有频率的计算，通过分析比较其结果可知，支臂改为a型后会使闸门的整体受力趋于均匀，即原模型受力大的部件其应力变小，而原模型受力小的部件其应力会变大；而且a型支臂的支杆在不同的放置位置对支臂的应力和位移变化也有一定的影响。 |
