Technical papers

Analysis of 24GHz Vehicle Radar Performance with MAZDA
From the standpoint of vehicle appearance, vehicle radar units should be located behind plastic bumpers. Plastic bumpers are made of dielectric material, which causes reflection, scattering, refraction, and diffraction…
Electromagnetics
Simulating the Electromagnetic Susceptibility of Automotive Vehicles in collaboration with RENAULT
The tremendous increase in the use of electronic devices in the automotive sector is leading to hard-to-manage EMC situations. The Joint Study presented in this paper is demonstrating the ability of Numerical EMC to be…
Electromagnetics
Numerical simulation and experimental validation of guided ditching tests
The oblique water entry of structures with high horizontal speed is investigated in this work. First, the necessity of aircraft ditching analysis as well as the requirements for numerical tools to simulate aircraft…
Virtual Performance Guided Ditching, Fluid-structure interaction, High speed water impact, Experimental methods, Computational modeling, Smoothed Particle Hydrodynamics
Lifetime Extension of Ingot Casting Molds
Due to high thermal loads subjected on the mold during casting process, cracks appear after a limited number of casting cycles. This article provides an overview of influence factors, as well as measures to increase the…
Casting ingot casting, casting simulation, stress simulation, residual stress, micro-structure, mold failure, cracks
Integration of Coupled Casting and Structure Simulation for Magnesium Die Castings
Simulation is an important tool in the different phases during development. It is used in the early, purely virtual development phase as well as in later production and final test phases, respectively, to analyse and…
Casting
Process Chaining Approach With Simulation: From Cast Ingot To Final Properties Of Forged Component
The aim of this study is to evaluate, through FEM software simulation, the quality and properties that can be achieved on a forged component, taking into account results of casting process used to produce ingot . In…
Casting Ingot Casting Simulation, Forging Simulation, Software, DEFORM, ProCAST
Shielding Effectiveness Calculations for Cabinets (1 – 30 GHz) in collaboration with HUAWEI
This paper deals with the computation of high-frequency fields which penetrate into two different cabinets with two different air-flow hole shapes. The software used for the simulations is Efield® and the two different…
Electromagnetics high frequency, electromagnetic shielding effectiveness, FDTD, MLFMM, Efield
Design Loads and Random Vibration Specifications for Spacecraft instruments
After a first estimation based on statistics, the design loads for instruments are generally estimated by coupled spacecraft/instrument sine analysis once an FE-model of the spacecraft is available. When the design…
Vibro-Acoustics
Predicting SC Acoustic Tests Using the Boundary Element Method
This paper focuses on how to effectively predict random acceleration spectra experienced during spacecraft (S/C) acoustic qualification tests representing the acoustic environment at launch by using a fully coupled…
Vibro-Acoustics
Acoustic Test Prediction and Correlation for the SGEO Satellite Platform STM Model
Spacecraft structural designs have to be designed and verified for a number of mechanical environments, namely:
  • Quasi-static loads
  • Sinusoidal vibration
  • Acoustic Noise
  • Shock…
    Vibro-Acoustics