Recent content by Fantastic Fox

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    Standard Pipe Shaft Sizes: Catalogs & Websites

    Has anyone got a link to manufacturers catalogues or websites (anything online?) where I can find standard pipe shaft sizes?
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    Aeronautical Engineering Summer Project

    Sorry about the double post, I can't edit my previous one. I've just had a quick look for books that could help. I'll be able to start the project properly after next week. I couldn't find any specifically for RC aircraft, but I didn't really expect to. I found a few reputable books; Aircraft...
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    Aeronautical Engineering Summer Project

    This sounds like a winner. I won't be able to look seriously into it for another two weeks. I'd really appreciate if someone could recommend good resources and books on aircraft design. Thanks
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    Mechanics Test: Calculating Forces in a Mechanical Framework

    I would suggest that you keep all forces in kN, as there isn't a need to convert to N. I think that led you to a little error. Check your calculation of 99.6kN, you're out by a factor of ten. Looks like you're on the right track anyway. When you examine the last joint, you'll have already...
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    Mechanics Test: Calculating Forces in a Mechanical Framework

    Your value of F[AB] is correct. They way you have drawn it actually shows it as being compressive (acting towards the joint), so a positive value is correct in that situation. Your value of F[AF] is incorrect. tan30 = 5.75 / F[AF] => F[AF] = 9.96kN (tensile) Check your geometry. There's a...
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    Mechanics Test: Calculating Forces in a Mechanical Framework

    Your answers for the first part are right.To calculate the force, and identify the type of force (tensile or compressive) in each member of the framework: Look at each joint separately. Draw a FBD of the joint showing all the forces acting on it. Use basic trig and the equations ΣF(x direction)...
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    Aeronautical Engineering Summer Project

    I'm a mechanical engineering student who loves aircraft. I want to work on a project this summer so I'll learn more about aircraft/aeronautical engineering. I have a few ideas so far. Here's just a few off the top of my head for now; Design, build, and test a jet engine Study aircraft icing...
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    Schools Top 10 Universities for Aerospace Engineering in the world

    That was in the US News ranking for Undergraduate Aero Engineering courses in schools that don't offer PhDs if I remember correctly. The OP wants to do a Masters so it's irrelevant. For the "best" courses in the US, search for "US News Grad School Rankings" and follow the links for...
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    Which Power Transmission Option is Best for Connecting a Motor to a Fan?

    From the catalogue I have, I wasn't happy with the choice of couplings. Also, the availability of a certain type of stand. The stands are better suited to belt drives. It'll work out cheaper. I also thought about using a combination of couplings and belt drive, but it was an...
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    Which Power Transmission Option is Best for Connecting a Motor to a Fan?

    I actually ended up going with a belt drive. One question: Am I right in thinking you don't need any keys if you use taper lock pulleys?
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    Which Power Transmission Option is Best for Connecting a Motor to a Fan?

    I've had a look at belt drives and couplings and have produced some basic design specs. The belt drive is a very simple 1:1 transmission. Both pulleys have the same pitch diameter To get a suitable size coupling (bore for the shafts I'm using), I need to use a 11kW motor running at 1/2...
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    Which Power Transmission Option is Best for Connecting a Motor to a Fan?

    I have to design a connection between a motor and a fan @ 10000 m^3/hr. I also have to design a suitable housing. There are no other restrictions. I selected a 5.5kW motor using a chart, but I could also use say a 7.5kW motor on 3/4 power (both are equally efficient).
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    Which Power Transmission Option is Best for Connecting a Motor to a Fan?

    More than likely 1:1. But, out of interest, could you change transmission ratios using a coupling? I'll connect a frequency changer to the motor to vary fan speed.
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