Axial Definition and 177 Threads

  1. A

    Analysis of Hubbed Axial Flow Fan

    Hey everybody, I am about to make some simplistic fan analysis for a hubbed axial flow fan (Single stage). What makes me confused is if I should use the classical "one stage" approach for compressor design or if there is another way to do this?! My aim is to carry out a simplistic analysis of...
  2. E

    Axial loads and columns selection

    Hi, I have a question from an engineering science assignment that I'm stuck on. 1. Select the lightest wide flange section that can be used as a steel column 7 m long tosupport an axial load of 450 kN with a factor of safety of 3. Use 200 MPa as the limit of elasticity, 200 GPa as the...
  3. A

    Do Vector and Axial Vector Currents Satisfy These Equations?

    Homework Statement I have to show that the vector current \vec{V}^\mu = \overline{\psi} \gamma^\mu \vec{T} \psi and the vector axial current \vec{A}^\mu = \overline{\psi} \gamma^\mu \gamma_5\vec{T} \psi satisfy this \partial_\mu \vec{V}^\mu = i\overline{\psi}[M,\vec{T}] \psi...
  4. A

    How Do You Calculate Stress on a Piston Rod?

    http://imgur.com/vheez.gif" Stress = N (normal force) / Area I really need to know what force is acting on the piston rod. TIA
  5. J

    Find allowable axial compressive load

    Homework Statement Find the allowable axial compressive load for a 3in by 2in by .25in 17 S-T aluminum-alloy angle 43in long. It acts as a pin-ended column. Assume: Factor of safety = 2.5 Least radius of gyration, r = .43 Area = 1.19 in^2 Homework Equations 17 S-T gives modulus of...
  6. D

    Axial Piston Pumps Equation Help

    Right, I am in the process of designing an axial piston pump. I have obtained the following formula from a textbook for power output. unfortunately i don't know what units the formula requires, is anyone able to confirm what they are? Also, if anyone knows of a good resource for pump design...
  7. I

    Alternative Feynman Diagram Calculation of Axial Anomaly

    Homework Statement I'm working my way through Quantum Field Theory in a Nutshell by A. Zee. I'm religiously doing the exercises but since I'm doing it on my own (I'm not in school) I have no one to ask when I get stuck. Any hints would be appreciated. The problem is IV.7.5, on page 253 of...
  8. A

    Calculate Maximum Axial Force in Aluminum Bar

    1. An Aluminum bar has the dimensions given in the attachment. if the allowable stress is 200MPa, determine the maximum axial force P allow that can be carried by the bar. See attachment for the drawing 2. allowable stress=P/A, E=deformation/L, allowable stress=L/E 3. I attempted...
  9. B

    Where does the sun rise, w/ axial tilt?

    Obviously we all know the sun generally rises in the east and sets in the west. But due to axial tilt, it is only really due east and due west at the equinoxes. At other times of the year, the sunrise will be somewhat north of east or south of east (and likewise for the sunset, but let's focus...
  10. O

    Radius & Axial Distance of Uniform Helical Path

    how is the radius of a turn of a helical path related to the axial distance between a successive turn assuming the helical path to be uniform?
  11. S

    Axial Anomaly and Fermion Mass

    It is often said that fermions are protected from large mass corrections by chiral symmetry. My question is does the axial anomaly generate corrections to fermion masses, and if so, doesn't this ruin the protection afforded by chiral symmetry to some extent? Thanks, Ben
  12. Y

    Why Should Only One Bearing Support Axial Loads?

    Hello, does anyone know why for a shaft with 2 bearings A and B, why is it not good engineering practice for both bearings to support axial and radial loads? while it is better if one supports axial and radial loads while the other bearing only support radial loads.
  13. D

    Axial Play & End Play in Rotating Assemblies

    I was looking for information on axial play on a rotating assembly.More specifically a centrifugal chiller although any information would be good I need information on end play, and why it is needed, why this axial force is created,etc. Any help or links is appreciated
  14. R

    Understanding Axial Strain Calculations

    Hi all, I have a problem with respect to axial strain.As far as I know the axial strain is calculated by using the formula given below. Strain=(L-Lo)/Lo where Lo : Orginal length and L : current length. However, another formula is written in one of the program manuals I have been...
  15. B

    An axial force between neutrinos.

    Hi, i just completed my paper looking the posibility that neutrinos feel an additional force added to the standard model. The force is based upon U(1) just like the electromagnetic force, but left and right handed particles have opposite charges. The paper is available below, and at my web...
  16. K

    Why is the maximum y value different from the centroid?

    I've got a sectional area of a beam that is subjected to an axial force N = -100 and momenst M(y) = -50 kNm and M(z)= - 120 kNm. I've found the centroid and the second moment of area around both axes. How can I compute the maximum axial stress? Here's the section...
  17. S

    Differences between an axial vector, a pseudo vector and a bivector?

    What is the difference between an axial vector, a psudo vector and a bivector?
  18. C

    Why does a rope have different stiffness than a rod of the same diameter?

    Why would a rope have a lower bending and compressive stiffness that a rod of the same diameter, but would have the same axial tensile stiffness?
  19. M

    Solve Axial Displacement: 80kN Load on Steel Rod Attached to Aluminum Tube

    Please give me some guidance on this problem. I can attach the figure if it will help. The assembly shown in the figure consists of an aluminum tube AB having a cross sectional area of 400mm2. A steel rod having a diameter of 10 mm is attached to a rigid collar and passes through the tube. If...
  20. A

    Stress, Strain - Axial loading (axial forces)

    Hello everyone I study mechanics of materials, curently stress and strain. I don't understand how to figure out those axial forces in specific fields of mechanic construction. Picture 1 - Construction 1: http://img.photobucket.com/albums/v309/Andreii/P9150003.jpg" Picture 2 - Construction...
  21. B

    How Does End Fixation Affect Slenderness Ratio and Axial Load in Steel Columns?

    Hi, I have the following question to complete and i was wondering if anyone can help.. Compare the slenderness ratio and maximum safe axial load that a universal column of section 152 x 152 x 37 can carry if it is made from grade 43 steel to BS5950; 1985 and 6.5m in height when its ends are...
  22. M

    Axial and centrifugal ventilators

    I need article or wide information about this.I looked for on [PLAIN]www.but[/URL] I couldn't find enough inf.can you help me?:rolleyes:
  23. U

    Focus Axial Ray: Can It Pass Through Glass?

    is it possible to focus an axial ray through a double plano piece of glass placed in air? i don't think so because the glass will not reflect the ray towards the optical axis for the ray to focus in. is this thinking correct?
  24. tandoorichicken

    When Does the Nonlinear Stress-Strain Equation Apply?

    My statics text says the following: The relationship between axial stress and strain can be represented by the equation \sigma = E\epsilon "At higher levels of stress, the following nonlinear equation may be a better fit to describe the correlation between axial stress and strain: \sigma...
  25. T

    Can you have axial vectors in a 2D space?

    Can you have axial vectors in a 2D space?
  26. S

    Axial rotation of a magnetic field detection

    Since the archive didnt have an answer or these keywords, is there any way to detect a magnet spinning on its axis so the magnetic field is rotating axially and lines of flux are rotating around but nowhere in space is the flux level changing? I've heard rummors over the years. This is not the...
  27. T

    Understanding Axial Members in Structural Statics - Learn the Basics

    Hi! Just discovered this forum, and it's like the best ever! Anyway, I do have a question. In statics I hear about an "axial member" of a structure. This means that the force in this member works along the rod or wire or whatever, so that the direction of the force need not to be determined...
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