This simulation plan aims to explain and document all steps to be taken in the simulation
analysis of the Fokker-100 case. This case is the scenario in which the aircraft touches the
ground during landing, introducing loads on the landing gear. The landing gear consists of
2 rear gears around mid-span and one in the front. Furthermore, the pilot uses the rudder
which induces a lateral force on the tail.
As stated in the assignment, it is required to find the maximum normal stress and location
of this in the fuselage, the maximum shear stress and its location in the fuselage, and the
flow in the frames that introduce the loads from the landing gears into the
Muons compose the penetrating component of Cosmic Rays. At sea level, they constitute the largest part of Secondary Cosmic Rays, giving an average flux of ≈ 100 m−2s−1sr−1. The aim of our experiment is to estimate, from muon decay, the mean lifetime and the mass of invisible products. Our experimental setup includes four detectors: three of them are plastic scintillators and compose the trigger system, while the last one is a liquid scintillator which measures the particles energy. All these scintillators are read by photomultipliers. Trigger and pulse thresholds are computed by logical and temporal modules in a VME crate. The Data Acquisition System has been verified to work properly. It is composed of two fADCs modules, one I/O Register, one Motorola computer and a Farm. The liquid scintillator has been calibrated in energy using both passing muons and 60CO gamma source. Thanks to the charge-energy conversion factor we estimated electron energy spectrum. In particular we selected a sample of decay events by estimating muon mean lifetime τμ = 2.19 ± 0.34 μs; then we finally extrapolated an upper limit for invisible products mass mν < 5.99 ± 0.73 MeV/c2.