ETP 200 Gear Box Life Test

Revision for “ETP 200 Gear Box Life Test” created on November 20, 2015 @ 21:19:59

Title
ETP 200 Gear Box Life Test
Content
1. PURPOSE / DESCRIPTION 1.1 To validate the life of the gearbox under load and no-load conditions 2. PROCEDURE 2.1 Position the ring gears in the 50% wing amplitude position and tie a string around the gearbox to lock the ring gear in said position. 2.2 Assemble gear box to test bed per figure 1 <a href="http://wiki.techject.com/wp-content/uploads/2015/11/p21.png"><img class="alignnone size-full wp-image-49" src="http://wiki.techject.com/wp-content/uploads/2015/11/p21.png" alt="p2" width="445" height="380" /></a> Figure 1: Test Assembly 2.3 Add wings with single “3X” band on each side of each wing 2.4 Ensure wings push air upwards 2.5 Set voltage to 7.4V 2.6 Record no-load Amperage 2.7 Slowly increase variable controller until the wings begin to constantly flap and record amperage 2.8 Slowly increase variable controller to the full throttle position and record amperage 2.9 Using the strobe light measure and record the motor RPM 2.10 Stop motor after 10 minutes and let system cool for one minute. While cooling record: 2.10.1 Temperature of the motor 2.10.2 Temperature of the yoke at the trunion pin 2.11 Consider steps 2.4 through 2.10 one cycle 2.12 Repeat until 12 cycles have been reached 3. ACCEPTANCE CRITERIA 3.1 Gearbox and associated gear train shall not fail after <hr /> &nbsp; Engineering Test Results <a href="http://wiki.techject.com/wp-content/uploads/2015/11/ETP-200-Gear-Box-Life-Test-Annealed-PEEK.xlsx">ETP-200 Gear Box Life Test - Annealed PEEK</a> <a href="http://wiki.techject.com/wp-content/uploads/2015/11/ETP-200-Gear-Box-Life-Test-Mg-PEEKPTFE.xlsx">ETP-200 Gear Box Life Test - Mg, PEEK&amp;PTFE</a> <a href="http://wiki.techject.com/wp-content/uploads/2015/11/ETP-200-Gear-Box-Life-Test-Mg.xlsx">ETP-200 Gear Box Life Test - Mg</a> <a href="http://wiki.techject.com/wp-content/uploads/2015/11/ETP-200-GBLT-Firstcut-sin2-Linkage.xlsx">ETP-200 GBLT- Firstcut (sin^2 Linkage)</a>
Excerpt


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November 20, 2015 @ 21:19:59 wanchen
November 20, 2015 @ 21:18:25 wanchen