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    Axle Design For Trolley Cart

    Uploaded by

    Hailemariam Weldegebral
    The document summarizes the design of an axle for a trolley cart. It details: 1) The total load on the axle is 258.4kg under static conditions and 516.8kg under dynamic conditions. 2) The maximum bending moment on the axle is 1964547.5 N/mm. 3) To withstand this moment, the axle needs a cross-sectional area (Z) of at least 10914.15 mm3 based on the yield strength of the material.

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    Axle Design For Trolley Cart

    Uploaded by

    Hailemariam Weldegebral
    33 views2 pages
    The document summarizes the design of an axle for a trolley cart. It details: 1) The total load on the axle is 258.4kg under static conditions and 516.8kg under dynamic conditions. 2) The maximum bending moment on the axle is 1964547.5 N/mm. 3) To withstand this moment, the axle needs a cross-sectional area (Z) of at least 10914.15 mm3 based on the yield strength of the material.

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    Original Title

    Axle design for trolley cart (2)

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    The document summarizes the design of an axle for a trolley cart. It details: 1) The total load on the axle is 258.4kg under static conditions and 516.8kg under dynamic conditions. 2) The maximum bending moment on the axle is 1964547.5 N/mm. 3) To withstand this moment, the axle needs a cross-sectional area (Z) of at least 10914.15 mm3 based on the yield strength of the material.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    33 views2 pages

    Axle Design For Trolley Cart

    Uploaded by

    Hailemariam Weldegebral
    The document summarizes the design of an axle for a trolley cart. It details: 1) The total load on the axle is 258.4kg under static conditions and 516.8kg under dynamic conditions. 2) The maximum bending moment on the axle is 1964547.5 N/mm. 3) To withstand this moment, the axle needs a cross-sectional area (Z) of at least 10914.15 mm3 based on the yield strength of the material.

    Copyright:

    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    Axle design for trolley cart

    The total load of the axle is the weigt of the frame plus the weight of the handle plus the weight
    of the object load
    52.2kg + 2.2kg + 204kg = 258.4kg

    Dynamic condition
    Dynamic load = 2 * weight in static condition
    Total weight = 2 * 258.4kg = 516.8kg

    0.47kg/mm

    225 1100 225

    516.8kg

    516.8kg

    Shear force
    RA=RB=5069.8/2=2534.9

    moment

    Maximum moment=1964547.5N/mm

    Bending stress
    (M/I) = (σb (allowable)/Y)
    Maximum bending =1964547.5NM
    yield strength
    Permissible stress= ,factor of safety=2
    factor of safety
    370
    = 185Mpa
    2
    allowable bending stress
    Z= section modules =
    Y max
    M allowable bending stress
    =
    I Y max
    M M
    Allowable bending stress = (ymax * ) =
    I Z
    M
    Z=
    ❑
    Z= 1964.55NM/180N
    =10914.15mm3

    Z for hollow cross section

    BD 3−bd 3 Where: B and D external length and width and


    Z=
    6D
    b=d internal length and width

    BD 3−bd 3
    Z=
    6D
    10914.15=[(50*503)- bd3]/6*50 but b=d
    b4 = 2975755
    b=d=41.5
    thickness=[50 – 41.5]/2 = 4.25
    so by taking thickness = 5 mm
    50*50*5 ( SHS ) square hollow steel

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