Simulations

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Calculate the forces to which each of the connections is subjected. Used safety factor 1.5 Material: "maraging" steel (used in aviation and molds)

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Material

Fast Iron - AISI: M2; DIN: 1.3343 Maraging steel - AISI: MIL-S-46850; DIN: WNr 1.6359
https://www.villaresmetals.com.br/villares/pt/Produtos/Ligas-Especiais/Acos-Maraging/VART250QA-MIL-S-46850

But since I can't find it in the Solidworks material list, you can create the materials #6

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Motion Analysis

Create Motion Analysis:

• New Motion Study
• Upper left corner select option: Motion Analysis
• Assign the forces
• Assign the rotary motor
• Define rigid bodies
• Eliminate redundancies in mates
• Create a table motion

Possible errors:

• If after applying the RotaryMotor, the parts come loose, change the phase of rotation
• If the number of new element states does not match the number of old ones, check if there are redundancies in the mates
• if when running when calculating the motion analysis the set does not obey the mates, confirm the redundancies and eliminate them first
• Moving Part suppressed: Mass could not be calculated, perhaps due to missing solid geometry. Mass can be customized in Part Properties to bypass use of solid geometry: Probability the material is not defined

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Simulation in Motion Analysis

Create Simulation:

• Select in features the "Simulation"
• In Motion Analysis create a simulation
• Select the part to simulate, desired time interval and created mesh
• Calculate the simulation

Possible errors:

• When trying to simulate several objects took too long and did not display the results correctly, then it is better to choose to create new studies and simulate part by part. If it is small simulations at different times, it can be done in the same study, but when calculating a new simulation, select the corresponding simulation.
• Components subject to simulation cannot belong to a rigid body group.

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Motion Analysis - table task

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Results:

• The upper connection piece on the right side (27620_1020_adapted) passes the yielding tension; therefore, it is necessary to check the simulation and probably change the piece to 27620_1224 and consequently the piece 27624_10_1015 to 27624_10_1218.

• The connections with the base can be changed from 27624_10_0812 to 27624_10_1015 to be more uniform and increase the safety factor.

• It is necessary to change perfilRedondo_120, changing it from being a single bar in the middle to two, as it obstructs movement.

9

[TatianaResend]

To determinate the critical elements, one can start by constructing and analyzing a graph of the magnitude of the reaction force.

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In the first approach, replace the part 27620-1020 with 27624-05-1020. I don't remember the difference on the 1st and 2nd try, but on the first one the maximum reaction force is 10592 N (similar to part 27620-1020).

On the second attempt, the maximum reaction force is 5726 N. I probably got it wrong earlier, as the simulation currently looks correct.

Anyway, the moment caused in the sections is around 40MPa and 73MPa, which does not justify the passage of the yield stress.

Doubt:

• as the machine is symmetric, shouldn't the von Mises stresses be symmetric too?

https://user-images.githubusercontent.com/101273005/224268837-03615d00-7d6f-438f-99ae-26f39841b55d.mp4

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Need to do:

• Confirm that the 27620-1020 component supports the stresses.
• Simulate the structure.

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Simulate the structure

To simulate the structure, static simulation was used.

I started by simulating the structure with 30x30mm profiles and I had a safety factor of 0.2 so I increased it to a 45x45mm profile and placed some diagonal profiles passing to a safety factor greater than 1.3

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Final simulation results: simulacoes.pdf

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I still need to finish the written part, then I can close the issue