1) wittrick-williams algorithm
Wittrick-Williams算法
1.
The method integrates several techniques such as the Wittrick-Williams algorithm and the guided and guarded Newton method in the exact dynamic stiffness method(DSM) for the vibration analysis of skeletal structures,and the self-adaptive FEM for linear BVP based on the Element Energy Projection(EEP) super-convergence calculation.
本文将杆系结构自由振动精确分析的Wittrick-Williams算法、导护型Newton法和基于单元能量投影(EEP)超收敛计算的自适应有限元法有机结合,应用于平面变截面曲梁面内自由振动的分析,可以得到数值精确解,即频率和振型的精度均可满足用户事先给定的误差限。
2.
The method integrates several techniques such as the Wittrick-Williams algorithm and the guided and guarded Newton method in the exact Dynamic Stiffness Method(DSM) for the vibration analysis of skeletal structures,and the self-adaptive FEM for linear BVP based on the Element Energy Projection(EEP) super-convergence calculation.
该文将杆系结构自由振动精确分析的Wittrick-Williams算法、导护型Newton法和基于单元能量投影(EEP)超收敛计算的自适应有限元法有机结合,应用于平面变截面曲梁面内自由振动的分析,可以得到数值精确解,即频率和振型的精度均可满足用户事先给定的误差限。
2) Williams-Wittrick algorithm
Williams-Wittrick算法
3) extended Wittrick-Williams algorithm
扩展Wittrick-Williams算法
4) Choi Williams Distribution
Choi-Williams
5) Williams' model
Williams模型
6) Williams design
Williams设计
1.
Sample size calculation for Williams design in clinical trials;
临床试验Williams设计中样本含量的估算方法
2.
Methods The Williams design in three periods and three treatments cross-over trial was discussed through a real example of clinical trial.
目的探讨交叉试验中的Williams设计及其在临床试验应用时的随机化与检验效能分析。
补充资料：Williams paralled plate plastometer
分子式：
CAS号：
性质：橡胶用塑度计的一种，与古德里奇塑度计一样，同是压塑性塑度计。测定方法是将体积2cm3的球形试样，放在两平行板之间，向试样施加5000g负荷，在70～100℃恒温槽中压缩3～10min，试样高度值乘以100即得可塑度。
CAS号：
性质：橡胶用塑度计的一种，与古德里奇塑度计一样，同是压塑性塑度计。测定方法是将体积2cm3的球形试样，放在两平行板之间，向试样施加5000g负荷，在70～100℃恒温槽中压缩3～10min，试样高度值乘以100即得可塑度。
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