پروژه آباکوس..

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شرح پروژه

پروژه آباکوس در مورد ترک توی شفت دوار تحت بار حرارتی و دینامیکی (مودال آنالیز + سرعت بحرانی).

پروژه شخصیه

به زبان انگلیسیه توضیحات

مدل سازی انجام شده 

فقط بارگذاری و مش زنی و اینا نیازه و تهیه گذارش از نتایج مدل سازی به زبان انگلیسی

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I am doing Breathing mechanism of a crack in a rotating shaft under thermal stresses. As I am doing Masters , I want to find out how thermal stress alter natural frequencies and critical speed. To do that we need to simulate a cracked shaft under three stages. I have already created the geometry.

 To get natural frequencies and critical speed, wee need to plot mode shapes and campbel diagrams.

 There is a transverse crack in the middle of the shaft, shaft is not too complicated in shape.

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Crack is in red zone. half connected in tie contraint.

 Other half in friction contact.

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It should be done in three stages. Uncracked, cracked , cracked thermal. To those three we need natuaral frequencies and critical speeds and along with crack area stresses and show that thermal stress influences the crack breathing and that breathing influences stiffness and alter natural frequencies and critical speeds

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Here is the thing. I am giving you the full solid shaft modal.you just need give me mode shape results , crtical speed and campbell diagram.

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this is the full solid shaft. i want to apply gravity, rotational force and weight of the impeller on this.

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shaft is in mm dimension. so all we have to apply by considering that units

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I have created the properties of material which name Inconel 713C

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for this modal and cracked modal i want to create common boundry conditions and load conditions.

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mesh sensitivity analysis should also be carried out here

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through this region you have to create two temperature regions. ( one side 973K aand other side 373K)

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Concentrated force at negative Y direction, Gravity (9810 mm/s) in negative Y direction, Rotation of 14500 rad/s along Z axis.

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Above shaft is a solid shaft bro. Other file is the important part of this simulation.its with crack. It’s needed finer meshing and needed to be simulated without thermal stress and with thermal stress. I am comparing results of that two simulation. Now you are doing baseline simulation.

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مهارت ها و تخصص های مورد نیاز

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