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Maintenance, repairs, changes
Pamboukes edited this page Jul 8, 2024
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This page is a log of maintenance, repairs, and changes made to the wave/tow tank systems. See maintenance procedures for instructions and maintenance schedule for intervals.
| Date | Managed by | Details |
|---|---|---|
| 2024.07.06 | Pamboukes | Cleaned linear guide rails. Greased carriage linear bearings. Notable scoring observed on guide rails, both sides. |
| Date | Managed by | Details |
|---|---|---|
| 2016.03 | Ahern | Replaced upper belt sliding surface and added bearings to tensioning clamp. Addressed #70. |
| 2016.02.17 | Bachant | Updated Windows on Tow Tank PC. Still using Windows 7. |
| 2016.02.16 | Bachant | Updated LabVIEW 2015 32-bit and removed 64-bit. |
| Date | Managed by | Details |
|---|---|---|
| 2015.11.04 | Carpenter | Repaired string pot signal line- fixed control issue |
| 2015.10.10 | Bachant | Tow upgraded to v0.2.0. |
| 2015.09.26 | Bachant | Changed NI 9188 chassis config to use static IP address (169.254.192.250) to resolve issue #64. |
| 2015.09.24 | Bachant | Upgrade to LabVIEW 2015. |
| 2015.09.23 | Bachant | Ran Windows Update. |
| 2015.09.23 | Bachant | Reset belt preload; Reduce belt engagement on wavemaker-side tensioning clamp by one tooth; no noticeable effect in treating issue #65. Resolved #61. |
| 2015.09.23 | Bachant | Vacuumed out timing belt housing; fixed #62. |
| 2015.09.08 | Rowell | 2015 wavemaker paddle redesign. |
| 2015.03.15 | Bachant | Install V-groove casters and extended pendant cables for beach gantry; addresses #58. |
| 2015.02.27 | Bachant | Install optocoupler in AKD cabinet for trigger output, reversing logic. |
| 2015.01.19 | Bachant | Control platform swept and organized. |
| 2015.01.18 | Bachant | Two new memory modules installed in Tow Tank PC; fixes #10. |
| 2015.01.18 | Bachant | New shaft collar installed at slave-beach end; fixes #8. |
| 2015.01.18 | Bachant | Replaced latches on control platform computer compartment; fixes #38. |
| 2015.01 | Bachant | Update Tow software. |
| January 2015 | Bachant | AKD external regen. |
| 2015.01.19 | Bachant | Add speakers for Tow Tank PC; addresses #42. |
| 2015.01.19 | Bachant | Upgrade NI-DAQmx; addresses #33. |
| 2015.01.19 | Bachant | Add Ethernet switch to DAQ cube; addresses #24. |
| 2015.01.19 | Bachant | Upgrade SolidWorks to 2014; addresses #32. |
| 2015.01.19 | Bachant | Reorganize boxes on control platform shelves using plastic bins; addresses #41. |
| 2015.01.18 | Bachant | Add uninterruptible power supply (UPS) for Tow Tank PC; addresses #6. |
| Date | Managed by | Details |
|---|---|---|
| 2014.10.30 | Bachant | Tow carriage (S700) drive parameters changed for smoother motion. See this commit for details. |
| 2014 Fall--Winter | McLeod et al. | 2014 beach mesh replacement. Resolved #50. |
| 2014.07 | McLeod? | Changes made to improve water quality. Note that these changes have not been documented. |
| 2014.07.22 | McLeod | Hinge plate for the flapper was ground and painted (with epoxy paint?) before refilling the tank. |
| 2014.07.08 | McLeod | Wave Paddle was removed. Contractor (Badger Rand) will not be able to lift paddle back in using same equipment/technique due to its weight. The vertical support beam for the horizontal bridge/beam for hydraulic ram was also removed, revealing a dip (incomplete pour) in the concrete that will need to be fixed before a re-installation. |
| 2014.06.01 | Bachant | Sprayed down linear shafts with WD-40 and moved carriage along path. Noticed some rust on linear shafts. |
| 2014.03.06 | Bachant | Greased linear bearings. Slave-beach side grease fitting needs replacing. Also noticed creaking from carriage along path. Shafts should probably be realigned. |
| 2014.02.21 | Bachant | Wavemaker PC removed. Obsolete NI PCI DAQ boards removed. Desk wiring reorganized. |
| 2014.02.17 | Bachant | Reset belt preload. Replaced missing ball from, cleaned, and greased master-wavemaker side carriage linear bearing. Applied UHMW tape to bottom of tensioning clamp bracket. |
| Date | Performed by | Details |
|---|---|---|
| 2013.12.02 | Rowell | Water services (Wesley East 2-1390) contacted to open discussion and resolve water quality issues. |
| 2013.11.21 | Bachant | Linear shafts wiped down with WD-40. |
| 2013.11.20 | Bachant | S700 (tow axis) servo drive replaced with new unit under warranty due to power board failure. |
| 2013.09.10 | Bachant | DAQ cube downsized and reconfigured to mount to the side of the on-board electronics cabinet. |
| 2013.08.17 | Bachant | Wave staff signal conditioner removed from tow tank platform desk and stored on shelf with older wave staffs. |
| 2013.08.16 | Bachant | Moxa IA515A Ethernet serial server/switch added to tow controller cabinet to allow tuning S700 drive from Tow Tank PC. |
| 2013.08.12 | Bachant | {{:tow_tank:2013.08.12_bachant_tow_tank_pc_not_booting.pdf |
| 2013.08.07 | UNH pool services | Sodium bicarbonate spill by UNH pool services. Some pitting to rail occurred. |
| 2013.07.31 | Bachant | 80/20 cable carrier mounting extrusion hardware replaced. |
| 2013.06 | Rowell | {{:tow_tank:2013.06_rowell_wavemaker_work_performed.pdf |
| 2013.04.05 | Bachant | ACS UDMLC 2/4-axis universal stepper/servo drive added to on-board electronics cabinet with its main purpose being to drive the YZ traverse's stepper motors. Controller software rewritten to accommodate these two extra axes. Controller firmware and SpiiPlus updated to 2.20. |
| 2013.03.02 | Bachant | Linear shafts wiped down with WD-40. |
| 2013.03 | Tuttle | Wavemaker hydraulic reservoir leaking. Gaskets replaced. |
| 2013.01 | Bachant | YZ traverse redesigned and rebuilt. |
| Date | Performed by | Details |
|---|---|---|
| 2012 | Bachant | 2012 DOE grant upgrades -- major changes to tow system, DAQ system, and on-board accessories. |
| 2012.10 | Bachant | Turbine test bed version 2 finished. |
| 2012.10 | Bachant | First iteration of YZ traverse built (only had 5 ft of horizontal travel; no vertical). |
Note: This table is incomplete.
| Date | Performed by | Details |
|---|---|---|
| 2011 | McLeod | Back beach mesh replaced. Cost: $1338.26. |
| 2010 | Bachant | Drive cable fell off and wrapped around driveshaft during turbine testing. Cable replaced. UHMW guards designed to keep cable from falling off pulley. Plastic pulleys and bearings replaced. Various cable conduit clamp anchors replaced that were ripped up by cable. |
| 2009 | McLeod | All mesh replaced. Cost: $8961.44 |
| 2007 | McLeod | All mesh replaced. Cost: $8847.60. |
| 2002 | McLeod | All mesh replaced. Cost: $7005.12. |
| ❓ | ❓ | The original wavemaker software was rewritten in LabVIEW as part of (?)'s thesis. |
| ❓ | ❓ | A control system was attempted using a quadrature encoder with a pulley driven by the cable. This system was unsuccessful and manual positioning was still employed. |
| ❓ | ❓ | Tow system motor drive replaced with a Yaskawa V7. |
| 1996 | Darnell | Original tow system design and build. |
Note: This documentation is community-driven and therefore unofficial.
UNH Chase OE lab | Wave & tow tank | UNH-CORE Turbine test bed