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UNH-OE / wave-tow-tank

Configuration files and issue tracking for the UNH wave & tow tank.
MIT License
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Top C-channel flexes; screws backing out #89

Open Toby-D opened 8 years ago

Toby-D commented 8 years ago

The C-channel along the top of the wave paddle flexes during operation. (The force of the piston creates a moment which torques the C-channel, raising and lowering the piston side and loosening the rear screws.)

The problem is especially severe for random waves.

John Ahern is aware of the details.

wosnik commented 8 years ago

Toby: can you check with John whether he wants us to file an official work request with CEPS-TSC? Thanks.

From: Toby Dewhurst [mailto:notifications@github.com] Sent: Monday, August 01, 2016 10:16 AM To: UNH-OE/wave-tow-tank Subject: [UNH-OE/wave-tow-tank] Top C-channel flexes; screws backing out (#89)

The C-channel along the top of the wave paddle flexes during operation. (The force of the piston creates a moment which torques the C-channel, raising and lowering the piston side and loosening the rear screws.)

The problem is especially severe for random waves.

John Ahern is aware of the details.

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHubhttps://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_UNH-2DOE_wave-2Dtow-2Dtank_issues_89&d=DQMCaQ&c=c6MrceVCY5m5A_KAUkrdoA&r=ha7RQrEvWKhmmGf0Gq73Vo08_yRGbZbxq1q_HOK1Ly4&m=LIiAFPm_xCYYoz6oKsrhDc7_vX0JsRCFQN7Z335X4nM&s=feWFIvclIEzZG9mo6RzPFkwOgFwikZ6LPdXkE6EeH3k&e=, or mute the threadhttps://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_notifications_unsubscribe-2Dauth_AIY8G3C6xe57fSOc8flUGkTvqyFpZZCfks5qbf-2DMgaJpZM4JZoLc&d=DQMCaQ&c=c6MrceVCY5m5A_KAUkrdoA&r=ha7RQrEvWKhmmGf0Gq73Vo08_yRGbZbxq1q_HOK1Ly4&m=LIiAFPm_xCYYoz6oKsrhDc7_vX0JsRCFQN7Z335X4nM&s=OZyH5y4NrdWDcYZ_b7nTxuYdmQmttEzzSAcGbOlVzkU&e=.

jcahern commented 8 years ago

sure.

https://docs.google.com/forms/d/e/1FAIpQLSfXklfifG22gelCIXBH7ETMTEB-If0q2oQiepw7vNnqYo1CzA/viewform?

From: Toby Dewhurst notifications@github.com Sent: Monday, August 1, 2016 10:15 AM To: UNH-OE/wave-tow-tank Subject: [UNH-OE/wave-tow-tank] Top C-channel flexes; screws backing out (#89)

The C-channel along the top of the wave paddle flexes during operation. (The force of the piston creates a moment which torques the C-channel, raising and lowering the piston side and loosening the rear screws.)

The problem is especially severe for random waves.

John Ahern is aware of the details.

You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHubhttps://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_UNH-2DOE_wave-2Dtow-2Dtank_issues_89&d=DQMCaQ&c=c6MrceVCY5m5A_KAUkrdoA&r=UaXFfUHkQQV2PJ0jm7H4Pg&m=FD79WgFVV4rFIhZ2tZJloNQ0w-DhGLDfhndWJGgasc0&s=4pibDKCL51UmNrS25uBQwU3oEfJyJ5c03gbN0Bs4mHY&e=, or mute the threadhttps://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_notifications_unsubscribe-2Dauth_AQWqWgNCMvHauoPhZcs5WV5RDUifiK2Fks5qbf-2DMgaJpZM4JZoLc&d=DQMCaQ&c=c6MrceVCY5m5A_KAUkrdoA&r=UaXFfUHkQQV2PJ0jm7H4Pg&m=FD79WgFVV4rFIhZ2tZJloNQ0w-DhGLDfhndWJGgasc0&s=byToqZ3K2aQ_wgKUn2cmf1-i54oR5TzaDYBEPpXjw2Y&e=.