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#1
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Wing stress program
Anybody know where I can find an Excel program that calculates shear
and bending moments for a strut braced wing? I have one for a cantilever wing, but not strut braced. Thanks Neal |
#2
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Wing stress program
wrote:
Anybody know where I can find an Excel program that calculates shear and bending moments for a strut braced wing? I have one for a cantilever wing, but not strut braced. Thanks He http://www.eaa.org/benefits/sportavi...oddesign_5.xls Hint - When Googling, specify the file type: http://StrutSS.notlong.com Daniel |
#3
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Wing stress program
http://www.eaa.org/benefits/sportavi...tal_design.xls
http://www.eaa.org/benefits/sportavi...6-Airloads.xls Daniel, Thanks for the info. Your spreadsheet led me to another EAA one ( Metal Design ). On that spreadsheet, under the " Strut Braced Shear & Moment" tab, Rows 10 and 13 have figures in them with an explanation on Row 8 of where those figures came from ( I think ). I went to the Airloads spreadsheet as directed and still couldn't find where those figures came from. Any help would be appreciated. Thanks. Neal P.S. I tried to contact you offline but was unsuccessful. |
#4
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Wing stress program
Thanks for the info. Your spreadsheet led me to another EAA one (
Metal Design ). On that spreadsheet, under the " Strut Braced Shear & Moment" tab, Rows 10 and 13 have figures in them with an explanation on Row 8 of where those figures came from ( I think ). I went to the Airloads spreadsheet as directed and still couldn't find where those figures came from. Any help would be appreciated. Thanks. Hi Neal, The figures for Row 10 & 13 are read (manually) from the graphs on tabs "Normal Shear Plot" & "Normal Moment Plot" of the Airloads spreadsheet. Those graphs are generated from the computations on the "Cond __" tabs of the Airloads ss, and _those_ computations are the result of the inputs on the "V-N speeds" tab of the same ss. Williford's spreadsheets are quite good. The only error I've ever found was quickly corrected. The kicker is that they are an inter-related series. For the most part, one must begin with an earlier sheet, work through it, then use the results for input in later sheets & so forth. Kinda like design work I guess! The articles written to go with them are musts for those of us who don't have an engineering degree on the wall. I just this morning put together a list of those articles and their subjects. I need to go back to the library with a fist of dimes however. Here's my list of Williford's "Sport Aviation" articles to date and their subject matter (corrections welcome): mm/yy pg Subject ------------------------------------------------------ 02/02 60 Design 101 Part I: Six Steps *** 03/02 44 Design 101 Part II: Layout & Gear *** 04/02 56 Design 101 Part III: Balancing *** 12/02 36 Performance *** 06/03 52 Air Loads *** *** (2) 08/03 50 Cooling *** 11/03 66 Tails *** 12/03 58 Flutter *** 01/04 ?? Liquid Cooling *** 03/04 64 High Lift Devices 05/04 42 Wings *** 07/04 56 Props *** 09/04 34 Landing Gear *** 11/04 ?? Tandem Wings *** 01/05 47 Structures I *** 03/05 32 Structures II *** 05/05 50 Wood I 06/05 46 Wood II *** 07/05 34 Metal *** 11/05 50 Composites *** signifies that a spreadsheet is available to assist with number crunching. Not all of the above have spreadsheets and there are two for June 2003. The spreadsheets (as you discovered) can be found he http://www.eaa.org/benefits/sportaviation/ P.S. I tried to contact you offline but was unsuccessful. Sorry about that. The email address that gets posted here is fake spambot fodder. You can contact me directly at "danielbk atsign yahoo dot com". Daniel |
#5
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Wing stress program
Willford's spreadsheets are quite good. Yes they are. If you use/enjoy them, send a note and tell him how much you like them. Neal spends a lot of time to publish the articles and spreadsheets, and is not always sure anyone cares. Let him know. Everyone appreciates being appreciated! Mail to "editorial at eaa dot org" and put "Attn:Neal Willford" in the subject line. You kill birds with one stone that way; EAA editors know you like technical articles, and your thanks get to Neal. Dan Horton |
#6
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Wing stress program
Willford's spreadsheets are quite good. Yes they are. If you use/enjoy them, send a note and tell him how much you like them. Neal spends a lot of time to publish the articles and spreadsheets, and is not always sure anyone cares. Let him know. Everyone appreciates being appreciated! Mail to "editorial at eaa dot org" and put "Attn:Neal Willford" in the subject line. You kill birds with one stone that way; EAA editors know you like technical articles, and your thanks get to Neal. Dan Horton |
#7
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Wing stress program
Thanks tremendously
Neal ( the other one ) wrote: Thanks for the info. Your spreadsheet led me to another EAA one ( Metal Design ). On that spreadsheet, under the " Strut Braced Shear & Moment" tab, Rows 10 and 13 have figures in them with an explanation on Row 8 of where those figures came from ( I think ). I went to the Airloads spreadsheet as directed and still couldn't find where those figures came from. Any help would be appreciated. Thanks. Hi Neal, The figures for Row 10 & 13 are read (manually) from the graphs on tabs "Normal Shear Plot" & "Normal Moment Plot" of the Airloads spreadsheet. Those graphs are generated from the computations on the "Cond __" tabs of the Airloads ss, and _those_ computations are the result of the inputs on the "V-N speeds" tab of the same ss. Williford's spreadsheets are quite good. The only error I've ever found was quickly corrected. The kicker is that they are an inter-related series. For the most part, one must begin with an earlier sheet, work through it, then use the results for input in later sheets & so forth. Kinda like design work I guess! The articles written to go with them are musts for those of us who don't have an engineering degree on the wall. I just this morning put together a list of those articles and their subjects. I need to go back to the library with a fist of dimes however. Here's my list of Williford's "Sport Aviation" articles to date and their subject matter (corrections welcome): mm/yy pg Subject ------------------------------------------------------ 02/02 60 Design 101 Part I: Six Steps *** 03/02 44 Design 101 Part II: Layout & Gear *** 04/02 56 Design 101 Part III: Balancing *** 12/02 36 Performance *** 06/03 52 Air Loads *** *** (2) 08/03 50 Cooling *** 11/03 66 Tails *** 12/03 58 Flutter *** 01/04 ?? Liquid Cooling *** 03/04 64 High Lift Devices 05/04 42 Wings *** 07/04 56 Props *** 09/04 34 Landing Gear *** 11/04 ?? Tandem Wings *** 01/05 47 Structures I *** 03/05 32 Structures II *** 05/05 50 Wood I 06/05 46 Wood II *** 07/05 34 Metal *** 11/05 50 Composites *** signifies that a spreadsheet is available to assist with number crunching. Not all of the above have spreadsheets and there are two for June 2003. The spreadsheets (as you discovered) can be found he http://www.eaa.org/benefits/sportaviation/ P.S. I tried to contact you offline but was unsuccessful. Sorry about that. The email address that gets posted here is fake spambot fodder. You can contact me directly at "danielbk atsign yahoo dot com". Daniel |
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