Wavelets simulation for earthquake ground motion acceleration;
地震动加速度过程的小波模拟
Fourth-order cardinal B-spline wavelets for the simulation of earthquake ground motion acceleration;
地震动加速度过程的四阶基数B-样条小波模拟
On the basis of Priestley s evolutionary power spectra and the typical response spectrum compatible technique for design accelerograms,a new iteration method is developed for generation of random earthquake accelerograms non-stationary both in amplitude and frequency which are compatible with target evolutionary spectrum.
在Priestley渐进谱和常用反应谱拟合技术基础上,提出一种拟合目标渐进谱生成幅值和频率非平稳地震动加速度时程的方法。
Analysis of Severe Vibration of Draught Fan and Solution Method;
引风机剧烈震动分析及解决方法
Blast shock and vibration of underground structures with conventional weapon;
常规爆炸下地下结构的冲击震动环境
The profile cutter is replaced by the cutter with three equi-spaced inserts to avoid the vibration in the valve seat machining.
介绍了用国产硬质合金枪铰刀替代MAPAL枪镗刀解决导管孔的断刀和质量问题,以及用三个刀片均布的刀具替代成形刀具解决阀座加工中的震动问题。