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Dzldoc

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Posts posted by Dzldoc

  1. Brace yourselves, I'm a mechanical engineer and this is going to seem dorky.

    I have just finished designing a geared transmission shaft that is required to transmit 100 lbf +/-5% to two other gears with resistance torques of 300 lbf each. I designed it to have a 95% reliable infinite fatigue life with a fatigue safety factor of 3.02, and a desired safety factor for yielding of 2.00.

    In essense, this part will never break, even after a lifetime of the specified load fluctuation (paperclips, for example, do not have infinite fatigue lifes as evident by them breaking after only a few bends back and forth).

    You can even apply (statically) twice the rated loading, or 210 lbf, before this thing will yield/break. This is for your own safety. Think of a ladder that says it is rated for 250 lbs. Engineers know that a 350 lb person will no doubt use the ladder anyways, hence why we design with safety factors.

    All this, while decreasing the shaft diameter from 1.38 inches to 1.179 inches. (Saves material. Material saved = higher profit)

    In addition, I was able to write a Matlab program for a shaft of this type that will solve for the required shaft diameter needed (based on the max. shear stress & distortion energy theorms) for any desired safety factor. The program's required inputs include gear forces, gear diameters, desired safety factor, shaft length, etc.

    There is no telling just how lame this must sound to all of you. I wouldn't be surprised if 60% of you haven't even made it to this point in my post before moving on to the next one. I guess this is the price I pay.

    But there is no denying that this is what made me happy today.

    Ah! I'm beginning to understand now, why I should have been born with six inch long rubber fingers. You guys design equipment as though it will "NEVER BREAK" LOL!

    I've changed many a striped out gear shafts in the bottom of a barge in 104f temp.

    after an impellar on the end of that gearbox locked up and the 671 Detroit Diesel with

    a gear driven supercharger and 850ftlbs of torque sheared it like peanut butter without missing a beat! :lol:

    A buddy of mine, his father was a mechanical engineer with a degree from Tulane and Loyola. One day he was installing winch motors on his boat that were to be used for hoisting wingnet frames (80ga aluminum) and he couldn't figure out why when he applied the switch that the motors wouln't run. So he calls me up and ofcourse I couldn't diagnose the problem over the phone so I head down to the dock to have a look.

    Well as soon as I pull up I see the problem, he has 115v house wiring going up the A frame to the motors :lol:

    I tell him that the wire is too small for a 12v system and he argues that the wire can handle 115v I said yes but it must have taken 15min for him to comprehend that he needed heavier gauge wire for the increase in amperage. The lower the voltage the higher the amps :lol:

    Reminding me of this story is what made me happy today :lol:

  2. I don't. :) I'm not deprecating myself, I'm just realistic. This is probably a good picture of me, and I thanked for the compliments, but I don't look like that when I wake up in the morning. That's all. I don't even know why I'm saying this...probably because I'm a bit embarrassed. :lol:

    :lol: I couldn't put my finger on it, but now I know where I know you from young lady :lol:

    daria.jpg

  3. Thank you. :)

    Don't be fooled though. I usually use much less make-up and I wear glasses. I suppose I'm "gorgeous" only on certain pictures. ;)

    Don't sell yourself short, it's what's inside that makes you beautiful and that inturn will permiate to the surface. ;)

  4. One of the most electrofying shows I've ever experience in my life!

    Saw them in a Uni arena seating about 5,000 they opened the show with this song

    and Instead of appearing on stage, Angus came out from the back of the arena riding on the shoulders of this huge guy that looked like he was from the WWF working their way through the crowd to the stage. What a way to open a show. F%&#ing kicked our arses all night long!

    http://youtube.com/watch?v=X80Qjh9Yivs&feature=related

    beavisandbutthead.gif

  5. Somone asked me about Chim Chim. I told them he was on writers strike. Actually I felt bad about selling him to Suburban Auto several years back.

    Chim Chims new job :)

    Rumor has it with the decline in auto sales Chim Chim will return to me and Trixie very soon.

    Thank you for asking.

    But as a hired gun!

    42f06910.jpg

  6. Pffffthahahaha.. :D ... I'm actually loving that idea. Maybe we can fashion nipple covers out of buttons and have a whole ensemble going... :D

    Well if you can design and produce the product, I can use my marketing and sales experience on ebay to turn the profit :lol:

  7. That looks totally cool, but honestly, I am such a huge weenie. I'd probably pee my pants if I went in there, lol. If I could stomach it, it does look like it would be a blast, though.

    I'd love to go to New Orleans sometime just for the hell of it...it'd be neat to go during Halloween, too; the French Quarter seems like it would have the perfect atmosphere for it. I love your food, too. New Orleans is definitely on my "must see before I die/move out of the country/become a permanent couch potato" list.

    Before the storm Halloween was becoming a big event here for adults and has since picked up steam again.

    You see as many folks in costume as you do for Mardi-Gras. It seems to be "The" place to be for Halloween and events are held all over the area not just the Quaters.

    Take that place the House of Shock for instance, it's actually in Jefferson a suburb of New Orleans

    right under the Huey P Long bridge in a warehouse district.

    HaHaHa it's funny you should mention wet pants, I actually saw a woman that did just that.

    Poor lady was in tears. First time I went I slipped in some kinda goo and busted my butt lol.

  8. Back in 77 when I saw Zeppelin it was as close to Zepmania as you could get.

    People myself included stood in line in the freezing rain just to get tickets for a show in march which was postponed til may. People were bending yes bending steel barachades and trampoling each other to get to the box office.

    After you purchased you're tickets you actually had to climb on top the box office to get outta there and jump 10-12 feet to the ground it was madness.

    But worth every minute of it.

    Let it be noted that New Orleans was Zeppelins Hideaway away from home.

    Long Live The Hammer Of The Gods! :beer::thumbsup:

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