有加速度曲线，怎么滤波，怎么提取等效加速度曲线呢？

jxl123456

有加速度曲线，怎么滤波，怎么提取等效加速度曲线呢？还请各路大侠指点！！！！谢谢！

iambadman

不懂，不过同想知道。

很好奇是不是用傅里叶之类的东西，或者有专门的插件或者工具来做这个变化。或者分离。

271533843

滤波可以在hypergraph 做

Exercise: Filtering a curve

Step 1: Open Session File saefilter.mvw

1.	From the File menu, click Open > Session.

2.	Select the file <installation_directory>/tutorials/mv_hv_hg/plotting/saefilter.mvw and click Open.

Step 2: Filter a curve using the SAE J211/1 filter.

1.	Click on the Define Curves panel button file:///D:/Program%20Files/Altair/11.0/help/hwtut/curvescreate-24.png.

2.	Click Add and add a new curve.

3.	Change the name of the new curve from Curve 1 to SAE J211/1 FILTER in the text box over the curve list.

4.	Check the radio button for Math under Source:.

5.	Verify that the x vector is active.

6.	Hold the SHIFT key and click on the curve in the plot window.

The x = curve reference is p1w1c1.x.

7.	Click the y = field, and click Filter… from the panel menu to display the Filter dialog.

8.	Select the filter class SAE J211/1 from the Filter Class drop-down menu.

9.	Select Filter Class: 60, Padding: Mirror padding, and Direction: Fwd-Back.

10.	Click OK to complete the selection and close the Filter dialog.

11.	Hold down the SHIFT + CTRL keys, then select the existing curve.

12.	The x vector curve reference is entered in the saefilt95 function.

13.	Hold down the SHIFT key and select the curve again.

Note: the curve's y vector is referenced in the saefilt95 function. The y = field should read: saefilt95(p1w1c1.x,p1w1c1.y,60,1,3).

14.	Click Apply to create the filtered curve.

file:///D:/Program%20Files/Altair/11.0/help/hwtut/hg1030_curvepic1a.png

xy0414

271533843 发表于 2012-7-27 10:13
滤波可以在hypergraph 做

Exercise: Filtering a curve Step 1: Open Session File saefilter.mvw

多谢，写的非常详细，学到了