1) the theory of three moving links
三动杆理论
1.
Based on the theory of three moving links, all the structures of animals that possess appendicular skeletons are analyzed.
基于三动杆理论,深入地分析了所有具有骨骼型附肢的动物结构,得出上述所有动物结构构成的共性。
2) ternary flow theory
三元流气动理论
3) Three-dimensional hydrodynamic theory
三维水动力理论
5) quasi-three dimensional flow theory
准三元流动理论
1.
Based on quasi-three dimensional flow theory and related design ideas,the principle of configuration optimization and pressurization design was provided for the mixed flow fan,which has characteristics of small size,high rotating speed and high pressure.
针对直升机用斜流风机小尺寸、高转速、高压头的特点,根据准三元流动理论及相关设计思想,提出了这种风机进行结构优化和增压设计的准则,进而采用叶片径向平衡方程和约束条件求解子午面速度,最后基于气动力基本方程和自由涡理论进行回转面气动数据计算和风机造型。
6) curved bar theory
曲杆理论
1.
The capacity of casing collapse beared on three kinds of axial symmetry load was researched by energy method and curved bar theory.
根据油田套管损坏情况,建立了轴对称载荷作用下的套管内力计算模型,利用能量法和曲杆理论,分析研究了3种对称载荷作用下的中厚壁套管抗挤能力,给出了理想套管抗挤强度和套管屈曲临界挤毁压力的计算公式。
2.
By means of energy method and curved bar theory,the anti-collapse abilities of the casing with medium and thick walls are analyzed and studied respectively under the actions of 180?symmetrically-distributed concentrated load,90?evenly-distributed concentrated load and 120?evenly-distributed concentrated load.
根据油田套管损坏情况,建立了集中载荷作用下的套管抗挤能力计算模型,利用能量法和曲杆理论,分析研究了承受180°对称分布集中载荷、90°均匀分布集中载荷和120°均匀分布集中载荷下中厚壁套管抗挤能力,得出了理想圆管抗挤强度和套管屈曲临界挤毁压力的计算公式,通过分析比较理论解与有限元解,其最大相对误差不超过1%,得出了套管抵抗局部载荷的能力低于抵抗均布载荷的结论。
补充资料：连动杆
1.指连杆。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条