1 / 8

MICE Collaboration meeting at LBNL: 9 ~13 th Feb, 2005

MICE Collaboration meeting at LBNL: 9 ~13 th Feb, 2005. Force reaction analysis Stephanie Yang Feb 10 th , 2005. Objectives. Estimate the module displacement and force reactions under the unbalance magnetic forces.

graiden-brady
Download Presentation

MICE Collaboration meeting at LBNL: 9 ~13 th Feb, 2005

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. MICE Collaboration meeting at LBNL: 9 ~13th Feb, 2005 Force reaction analysis Stephanie Yang Feb 10th, 2005

  2. Objectives Estimate the module displacement and force reactions under the unbalance magnetic forces. FEA modelling of the super module. The FEA model consists of 3 AFC and 2 RFCC modules. Connecting bolts are modelled between the AFC module and RFCC module Magnetic force profile on 7 different cases were generated by Yury. All those cases have been studied and their results are summarized.

  3. Force profile received from Yury in January 2005

  4. Case 1: Forces (in MN) for Flip mode, Stage 6, p=240 MeV/c, β=42cm MICE cooling channel FEA model with the loading and boundary conditions

  5. Max displacement: 0.114mm Max stress: 37MPa Max reaction force in Y direction at the support base is 44548 N Case 1: FEA result

  6. FEA result summary

  7. Max stress: 45MPa Max displacement: 0.138mm Sensitivity Study Case Sensitivity study has also carried out to exam whether there is any impact by opening a big access hole on each side of the RF support plate. The FEA results show that the max displacement is increased from 0.114mm to 0.138mm, and the max stress is increased from 37MPa to 45 MPa.

  8. Conclusion The reaction forces on the support base of the Cooling channel indicates that: The majority of the horizontal reaction forces are being absorbed by the RFCC supports. The loads on AFC is passed through the connecting vessel flanges to the adjacent RFCC shell, rather than through its own support legs. We believe, there is no need to transmit the magnet forces from the Cooling Channel directly to the tracker solenoid as the super module (3 AFC modules & 2 Coupling Coil modules) are more than capable of sustaining the forces without any excessive sway. The support legs have to be strong enough to minimize the module movement due to the magnetic forces.

More Related