| 1. | Even for the most recent destructive earthquakes in the world there has been a lamentable lack of measured ground acceleration data .
即使不久前世界上发生的大地震，也十分遗憾地没有测到地面加速度数据。 |
| 2. | By using this technique , the baseline of transmitting acceleration data in real time is adjusted , and the velocity and the displacement are integrated synchronistically
利用此套技术可对实时传输的加速度记录同步进行长周期基线校正、积分求速度及积分求位移。 |
| 3. | In addition , three strong motion accelerographs have been installed on different geological sites and ground acceleration data are collected for use in structural design
此外，在地质不同的地点，亦装置了三部强震加速仪，所得的地面加速度资料可应用于结构设计方面。 |
| 4. | In addition , three strong motion accelerographs have been installed on different geological sites and ground acceleration data are collected for use in structural design
此外，在地质不同的地点，亦装置了三部强震加速仪，所得的地面加速度资料可应用于结构设计方面。 |
| 5. | Based on the analysis of the lateral acceleration data of vehicles measured in shanghai metro lin , this paper suggests that the lateral oscillation force of the vehicles shall choose 10 % of the vertical load on a single wheel
摘要根据铁路车辆及上海轨道交通3号线上实测车辆横向加速度值，建议横向摇摆力取轴重的10 % ，按目前承轨合构造，车辆偶然脱轨后可能横向偏移左右各1 . 75m 。 |
| 6. | A numerical simulation of simply dynamic system with and without damage under random forces is conducted to obtain acceleration data , and feature extraction based on wavelet packet and damage pattern classification based on bp neural network are finished . comparing node energy feature of wavelet packet coefficient with node energy feature of wavelet packet component signal , node energy of wavelet packet coefficient provides more feature information and causes shorter computation time
通过一个在随机荷载激励下的简单动力系统的数值模拟，对加速度时程信号提取了小波包系数和信号成份两种节点能量特征，对比了两者的差异，认为小波包系数节点能量的特征性更强，且计算效率更高。 |
