几何尺寸与公差论坛

 找回密码
 注册
查看: 115|回复: 1

PR258522 - The overall flatness does not consistently carry over into the rep

[复制链接]
发表于 2008-12-8 19:56:54 | 显示全部楼层 |阅读模式
The overall flatness does not consistently carry over into the report.
<< Don Ruggieri  --  12/01/08  13:28:53>>
data is in 12012008_01a.zip.  This is a problem that Mike Wilson had seen mmultiple times last week.  The overall flatness does not consistently carry over into the report.
Steps to reproduce:
On thje top of the 3rd page of the report are two flatness callouts.  Each one has overall flatness and then unit flatrness as well.  In this last run, the overall flatness is 0 whilke the unit flatness is non-zero.
Results:
Look at the PDF file names Monday-12012008_001-1-3.PDF, on top of the 3rd page.
<<END>>
 楼主| 发表于 2008-12-8 19:57:01 | 显示全部楼层

回复: PR258522 - The overall flatness does not consistently carry over into t

<< Don Ruggieri  --  12/04/08  15:26:11>>
Initial testing (6 runs) shows that this is not a problem.  Since it seemed to be only random in earlier tests, I plan to run more cycles before declaring it fixed.
<<END>>

<< Don Turcotte  --  12/03/08  15:25:51>>
The problem here is that V43B, V44B were updated to use the new LPSOLVE55.DLL (3rd party dll) but V431 was still using the older dll.  Upgrading V431 to this new dll solved the problem of the overall flatness reporting 0.0 (math did not converge).

Files inserted to server
------------------------
V431\NETDLL\LPSOLVE55.DLL
V431\PCDSFIT\PCDSFITDLL\LIB\LPSOLVE.LIB
V431\PCDSFIT\PCDSFITDLL\NETDEBUG\PCDSFitD.lib
V431\PCDSFIT\PCDSFITDLL\NETRELEASE\PCDSFit.lib

<<END>>

<< Changes made by Don Turcotte -- 12/03/08  15:26:31>>
Action:  Don Turcotte to David Petrizze, Status:  OPEN to REVIEW
<<END>>

<< Changes made by Tim Wernicke -- 12/03/08  10:31:35>>
Priority:  Critical to Stop Rel.
<<END>>

<< Don Turcotte  --  12/02/08  17:42:14>>
Using V431 in either debug or release build, the overall flatness fails to converge so the reported value is 0.  This fails consistently every time.   When I use V43B debug build, this converges every time to a reported value of 0.01247.  

Using debug printf's, I have verified that the data going into the maxmin fit in PCDSFit is identical in V431 and V43B.  But the algorithm does not converge in V431 so there must be some difference in the PCDSFit libraries in the two versions.  I have found some differences but nothing yet that gets the V431 to converge.
<<END>>

<< Changes made by Tim Wernicke -- 12/01/08  13:56:56>>
Category:  misc to GD&T, Action:  Systems Group to Don Turcotte, Assigned:  Systems Group to Don Turcotte, Priority:  to Critical
<<END>>
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|小黑屋|几何尺寸与公差论坛

GMT+8, 2024-12-23 00:50 , Processed in 0.035472 second(s), 20 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2023 Discuz! Team.

快速回复 返回顶部 返回列表