Recent content by odradek7

Hi all. My company designs and manufactures different steel structures that are installed in very different countries. I have a problem when dealing with the seismic hazard because a lot of times is very difficult to find a construction code regarding earthquakes, even in countries with quite...

Hello. Than you very much for your replies, they have been very helpful. I have convinced the people here that such a big steel hopper was not the correct way. Finally we have decided to do a mixed solution: the outer part wil be constructed in concrete (as a hollow cilinder) and the inner...

Thank you for your answers. The silo is skirt supported. To hold the hopper we are thinking in four column rings: one in the external upper ring (joined to the silo skirt), one around the outlet and two intermediate. This columns are intended to support only the hopper. Another problem i have...

Hi all! I am studying the (in my opinion remote) posibility of bulding a large steel hopper in order to install it inside a cylindrical steel silo bin storing cereals (wheat, maize...). The silo would be quite big, aproximately 60 feet diameter and 90 feet height, so the hopper would have to be...

Hello. I am studying bonnets regarding pedestrian protection. One of the best recent improvements i have found is the Mazda RX8 "Shock Cone Hood". Im trying to understand its structural behaviour and its advantages against "bone framed bonnets". At first glance it seems that they are trying to...

Hello you all. My purpose is to model a rolling process (similar to the one in the examples manual) and i don't know if i am understanding very well the general philosophy of the ALE approach. I have previously defined a temperature field by means of nodes and i want the material to flow...

I would like to know any satndard code providind formulation to calculate an allowable Umbalanced Magnetic Pull in an induction motor.

Thanks. Any bibliographycal reference or standar for the calculation of this force??? Sorry but i don't use to deal with electrical problems...

Thank you for the informationbut, sorry, i don't understand what do you mean with dc and 2*LF components. In the only formula i have for calculating the radial force produced by the unbalance it depends on some geometrical parameters and coefficients, the square of the magnetic flux (constant...

Hello all. I am studying the dynamic behaviour of a squirrel-cage rotor. I have some reports where its natural frequencies have been determined experimentally in a free suspended state (only the rotor, out of the motor). Trying to make a relation of this results with the ones that coud be...