This paper treats a pipe as a beam or as a thin shell. Then, the effect of cracks on the dynamic characteristics of pipes is calculated by means of the model of zero dimension element with crack.
在考虑管道长度特征的前提下，把管道近似地看作长梁或薄壳，然后以“含裂纹零维度单元”模型（即垂直于裂纹面方向的单元尺度为零）计算出裂纹对管道动态特性的影响。
Determination of the bore maxi-pressure point is an important link in solution of internal ballistics zero dimension model. Traditional optimizing methods probably have some problems of local pole.
最大膛压点的确定是内弹道零维模型求解的一个重要环节，传统的优选方法存在着可能陷入局部极值点的问题。
According to the detailed chemical kinetic mechanism of ethanol, a HCCI combustion model was created based on of zero dimension model.
根据乙醇氧化反应的化学反应动力学的机理，在零维模型基础上建立了HCCI燃烧模型。
Therefore, the preparation of one-dimension and zero-dimension zirconia crystal becomes a hot area of research.
制备性能优良的一维、零维氧化锆晶体已成为目前的科研热点。
Therefore, the preparation of one-dimension and zero-dimension zirconia crystal becomes a hot area of research.
制备性能优良的一维、零维氧化锆晶体已成为目前的科研热点。
应用推荐