Essays about: "Rocket lift-off"

Found 5 essays containing the words Rocket lift-off.

1. 1. Investigation of Antenna Radomes in Low Earth Orbits

   University essay from Lunds universitet/Centrum för analys och syntes

   Author : Mathias Manohar Gren; [2023]
   Keywords : Materials; Science; Space; Satellites; Antenna Radomes; Beyond Gravity; Coatings; Physics; Chemistry; Low Earth Orbits; Engineering; Lunds University; Materials Chemistry; Technology and Engineering;

   Abstract : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. READ MORE

3. 2. Investigating the Impact of Water Injection on Noise Generation During Rocket Lift-Off

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Sångberg Linus; [2021]
   Keywords : Rocket lift-off; Turbulent mixing noise; CFD;

   Abstract : This thesis aim to provide SSC, Swedish Space Corporation, with a foundation for understanding the key ideas behind water injection during rocket lift-off, including problems to be avoided when simulating the phenomena. This investigation focus on finding approaches suitable for obtaining a rough estimate of the reduction in noise generation, when too expensive equipment required is absent. READ MORE

4. 3. Acoustic Prediction Methods for Rocket Flame Deflector Design

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : FREDRIK RANOW; [2021]
   Keywords : Flame deflector; Launch pad; Estimation methods; Acoustics; Reflectivity; Diffraction; Directivity; Flamdeflektor; Uppskjutningsplattform; Uppskattningsmetoder; Akustik; Reflektivitet; Diffraktion; Direktivitet;

   Abstract : The aim of the project behind this report is to gain an understanding for the design criteria of launch pad flame deflectors used for launching rockets. This report presents an overview of the underlying phenomena, and then tackles the issue of estimating noise levels that come about during lift-off. READ MORE

5. 4. Conceptual Design of an Air-Launched Three-Staged Orbital Launch Vehicle

   University essay from KTH/Rymdteknik

   Author : Måns Rasmussen; [2021]
   Keywords : Air-launched; Launch Vehicle; Three-staged; Rocket; Sun-Synchronous orbit; Solid propellant; Liquid propellant; Trajectory optimization; Nonlinear programming; JAS 39 Gripen; Fighter aircraft; Luftlanserad; Trestegsraket; Solsynkron bana; Fast bränsle; Flytande bränsle; Bananalys; Icke-linjär optimering; JAS 39 Gripen; Jaktflygplan;

   Abstract : The objective of this study was to design a launch vehicle capable of deploying a nanosatellite into a Sun-synchronous orbit at 500 km orbital altitude from the JAS 39E/F Gripen fighter aircraft. This was achieved by first performing theoretical calculations for the required nozzles and solid propellant grain configurations for the first two solid stages, followed by the necessary liquid propellant configuration for the third stage. READ MORE

6. 5. Correlation of numerical simulation methods and failure criteria to experimental burst test

   University essay from Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Hållfasthetslära

   Author : Karlo Kasljevic; [2020]
   Keywords : Gas; Rotor; Turbine; Overspeed; Burst; Test; Strength; Analysis; Failure; Criteria; Burst margin; Stress analysis; Finite element method; Rotating disc; Burst Strength; Turbine disc; turbo-engine disk; Fracture; Blisk; Correlation study; Technology and Engineering;

   Abstract : Predicting the burst speed of turbine rotors is a costly and challenging task. Therefore, the scope of this thesis is to perform a correlation study between numerical simulation methods and failure criteria to experimental over-speed burst test of the Prometheus turbine rotor. READ MORE