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Incorrect axial force in a truss

Anonymous

Incorrect axial force in a truss

Anonymous
Not applicable

Добрый день, считаю ферму, результаты показывают что в нижнем поясе усилия больше чем в верхнем, при подсчете вручную, верхний пояс немного больше загружен чем нижний, при подсчете базовой фермы из библиотеки Robota он показывает корректную картинку, подскажите пожалуйста может я что либо не задал?

Файл прилагаю. Большое всем вам спасибо!

 

@Anonymous Artur Kosakowski edited the topic for better findability 

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Artur.Kosakowski
Autodesk Support
Autodesk Support

Hi Andrej,

 

I'm not sure if I understand your question? Could you attach a picture which illustrate it?

 

@Romanich Will you be possible for you to help with the translation please? Thank you.



Artur Kosakowski
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Anonymous
Not applicable

Good day, I believe the farm, the results show that in the lower zone of the efforts more than the top, when counting by hand, the upper belt a little more loaded than the bottom, when calculating the base farm from the library Robota it shows the correct picture, please tell me can I or not asked? File attached. Thank you all very much!

 

1-example of a beam

2-my beam (robot)

3-my beam (manual calculation)

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Romanich
Mentor
Mentor

Андрей,

 

Сложно проверять не видя ручной расчет. Возможно, ошибка в нем.

 

 

P.S. Большая просьба, если пишете на русском, пишите в эту ветку форума https://forums.autodesk.com/t5/simulation-i-robot-russkiy/bd-p/406

 

@Artur.Kosakowski The point of topic is some difference between manual calculation and Robot results for 2D Truss

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Anonymous
Not applicable

Хорошо, выше прилагал файл со схемой, на ваш взгляд там все верно задано?

 

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Artur.Kosakowski
Autodesk Support
Autodesk Support
Accepted solution

Hi Andrej,

 

To compare with your hand calculations you need to have one of the support allowing for horizontal movement.

 

support type.PNG

 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.



Artur Kosakowski

Anonymous
Not applicable

thank you)

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