Recent content by VitaX

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    Small Engine Dyno

    So essentially what I would have is the following: An engine with a centrifugal clutch mounted on the flywheel Machine a shaft of 3/8" diameter to mount inside the clutch housing Along this shaft, I would have a set of ball bearings to support the shaft The brake rotor would be mounted in...
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    Small Engine Dyno

    Sorry for the double post, but I think I understand what you are saying now with the torque arm mounted on the bearing itself. http://www.smaltd.com/FreeWheels.htm You are referring to this right? Where the bearing housing is essentially the load absorber and the reaction arm would rest...
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    Small Engine Dyno

    Its a single cylinder, 4-stroke internal combustion engine with a pull start. The test won't be ran very long, I would expect 5 minutes maximum if that. The goal of the friction brake dyno would be to start the engine, open the throttle all the way, and apply the brake until the desired RPM is...
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    Small Engine Dyno

    I've actually considered three other dynamomters (such as what you have listed). In terms of simplicity and efficiency for a low horsepower engine like the one I described in the OP, what would you suggest be the dynamometer? I only know of 4 possible choices: Inertia Dyno (Utilizing a flywheel...
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    Small Engine Dyno

    I am currently in the process of designing an engine dynamometer for a small engine. Maximum power of 1 KW @ 7000 RPM and a maximum torque of 1.6 Nm @ 5500 RPM. Here is my proposed method, but I have some concerns that I'll state below: Prony Brake Essentially a friction dyno, I would...
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    Modeling a mass-spring-damper system

    Ah now that makes sense. I should have thought of it like that. By the way, when dealing with the spring k2 in these problems, is the reason why you have to take the position x2 into account when looking at mass 1 because the masses are connected via that spring? I guess what I'm saying is at...
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    Modeling a mass-spring-damper system

    Hmmm but how I understand the forces on springs in part b) is that the force from spring 1 acting on the wall is towards the right. Thus equal and opposite on mass 1 makes that spring force to the left. That's what I thought you do for spring 3 in part b) as well. You look at the force spring 3...
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    Modeling a mass-spring-damper system

    Homework Statement Homework Equations The Attempt at a Solution This is one of our past homework assignments with the solution given to us. I'm trying to work my way through each part of this assignment but am getting stuck on a few aspects of the model. My approach: I first set up a...
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    Engineering Mechanical Engineer at a Nuclear Power Plant

    That sounds pretty interesting and like you said would be a great learning experience. My other question is, how much of the time would you be suited up to protect against radiation while working in a nuclear power plant? The job description said that I'd be in an office 40% of the time and in...
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    Engineering Mechanical Engineer at a Nuclear Power Plant

    Can anyone tell me who is a Mechanical Engineer and works in a Nuclear Power Plant, just what their daily duties include? How they like the work environment and such. I'm interested in knowing because as a student, my university has a Co-op program. Recently, I sent out my resume to FirstEnergy...
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    Archived Fluid Mechanics - Piezometric Head

    Homework Statement Homework Equations Provided above The Attempt at a Solution Piezometric head is defined as the pressure head plus the elevation head, correct? But how does having a high piezometric head tell you about the fluid flow? Since the diameters are equal, the area's are...
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    Find the change in enthalpy

    Homework Statement Homework Equations h_2 - h_1 = (u_2 + P_2v_2) - (u_1 + P_1v_1) The Attempt at a Solution I thought I had to look at the charts in the book for saturated liquid, then notice that the temperature is much higher at the given pressure than what was given in the problem...
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    Convergence/Divergence of an Integral

    So if both have no limit and diverge, then by comparison test the whole integrand diverges? Edit: Just noticed you have the limits a little different. How did you determine the limits to be those when evaluating them separately? I get \int_0^1 t^{-2} dt = -1 And \int_1^{\infty} e^t dt =...
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    Convergence/Divergence of an Integral

    Determine whether the integral converges or diverges: \int_0^{\infty}(t^{-2}e^t) dt What would be the first step here in determining convergence or divergence?
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    Transformers - Find n1 and n2

    Yeah I was talking about part a) Apparently some others were able to get the 10,000 W power for part a that was int he back of the book though I couldn't really follow what they did.
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