Recent content by RussellJ

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    Graduate What Frequency Excites Resonance in a Two-Mass, Two-Spring System?

    Update: I figure i can find the natural frequency of M2 based on the constants M2, c2 and K2 but i still need the frequency of M1.
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    Graduate What Frequency Excites Resonance in a Two-Mass, Two-Spring System?

    Hi, i am currently working on a problem involving a one dimensional, vertical two mass two spring system where the upper mass is free to move with the lower mass adn the lowermass is excited using an oscillating force. The springs are different with a damping force in the form of D = C*x'...
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    Calculating Gyration forces on a propellor shaft

    Maybe if i write out my calculations it will be easier to understand. The prop rotates at 1000RPM so that's 9.551 Rad/s the plane has a minimum turning radius of 1.5 Miles and an airspeed of 374 dividing the speed by the radius and converting gives ~ .069 rad/s. to calculate the moment...
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    Moment of inertia of triangle about tip formula

    Case closed. I sucked it up and did the integral.
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    Calculating Gyration forces on a propellor shaft

    I am a Co-op student trying to calculate the forces exerted on a prop shaft as the plane goes into a turn or incline/decline. this is my method of finding the moment exerted on the propeller for a plane in a turn If the propellor is rotating about a horizontal axis (X) and the plane is in...
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    Moment of inertia of triangle about tip formula

    Homework Statement Calculate the moment of inertia of a 4 blade propeller Homework Equations The Attempt at a Solution I am assuming the propeller blades to be triangles and need a formula for the mass moment of inertia about the tip of each triangular blade. Google hasn't...