Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 53 for “"Thermal Protection"”.
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Characterization of carbon ablators for hypersonic thermal protection systems
… vehicle's kinetic energy is rapidly converted to thermal energy, generating extreme heat and caustic chemical conditions that rapidly destroy even the most advanced materials. Surviving such an environment depends entirely on the thermal protection system (TPS). Ablative materials, which dissipate …
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Thermal protection concepts for mobile and dusty lunar experiments.
Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics. Thesis. 1971. M.S.
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Modeling the oxidation, ablation, and mechanics of carbon fiber preform in thermal protection systems
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-20 without embargo terms
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Assessment of damage to thermal protection systems due to micrometeoroid and orbital debris impacts
Thermal protection systems for hypersonic vehicles are low- to zero-fault-tolerant. In order to understand the fault tolerance of this system, the number of impacts that cause mission failure due to micro-meteoroid and orbital debris damage is presented. This number differs based on the mission, so …
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Detection of Hydrogen in a Two-Phase Cryogen Flow Stream with Thermal Protection Design Configurations
<p>All commercial liquid-propelled rockets use hydrogen as means to reach outer space. These rocket boosters are tested on the ground and use hydrogen as means of purging the remaining explosive gasses left in the test tanks. To conserve helium, a non-renewable resource, a test fixture was …
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A Lagrangian, Discontinuous-Galerkin Material Response Solver for the Analysis of Ablative Thermal Protection Systems
Thermal protection systems (TPS) play a vital role in safeguarding aerospace vehicles from the intense aerodynamic heating encountered during hypersonic flight. One category of TPS materials manages extreme heat through pyrolysis, a process in which the elevated temperatures trigger an endothermic …
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Development, modeling and testing of thermal protection systems in small, slow-burning solid rocket motors
… Such a propulsion system presents unique thermal challenges due to the long exposure times and the close proximity of temperature sensitive vehicle components to the combustion reactions. This thesis presents the development of a thermal management system appropriate for small, slow …
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An Aero-Thermo-Chemo-Mechanical Coupling Framework for the Analysis of Hypersonic Ablative Thermal Protection Systems
… modeling of the hypersonic flight of ablative thermal protection systems (TPS): resolving the relevant coupled physical phenomena through multi-physics simulations, the management of the disparate spatiotemporal scales associated with the fluid and solid responses, and establishing a reliable …
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An approximate method of calculating the weight of the two- insulation-two-coolant thermal protection system
… total weight of the two-insulation--two-coolant thermal protection system is developed. The equations derived in the development of the approximate method enable insight into the parameters that control the system weight. Two cases are considered: the case where the outer coolant location is …
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Comprehensive Modeling of Novel Thermal Systems: Investigation of Cascaded Thermoelectrics and Bio-Inspired Thermal Protection Systems Performance
Thermal systems involve multiple components assembled to store or transfer heat for power, cooling, or insulation purpose, and this research focuses on modeling the performance of two novel thermal systems that are capable of functioning in environments subjected to high heat fluxes. The first …
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Development of modeling tools for mesoscopic simulation of reacting high-temperature flows in phenolic-based thermal protection systems
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Assessment of the effect of designed-in features on thermal protection systems with application to vascular self-healing
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-11 without embargo terms
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Advancing Autonomous Structural Health Monitoring
… source. Aerospace vehicles are equipped with thermal protection systems to isolate internal components from harsh reentry conditions. While the thermal protection systems are critical to the safety of the vehicle, finding damage in these structures presents a unique challenge. Impedance …
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Assessment of aerocapture-entry trajectories for human Mars exploration
… system, a higher entry velocity, and a reusable thermal protection system on aerocapture-entry system mass requirements is explored. Results indicate that the thermal protection system thickness does not vary significantly with parking orbit selection while shorter period orbits require more …
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Uncertainty quantification applied to the analysis and design of a hypersonic inflatable aerodynamic decelerator for spacecraft reentry
… fluid-structure interaction, and flexible thermal protection system response of a deformable inflatable decelerator. Uncertainty analysis is first applied to the hypersonic flowfield simulations to quantify the uncertainty in the surface convective and radiative heat flux, pressure, and …
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Computation of Hypersonic Flows with Lateral Jets Using k-ω Turbulence Model
<p>Thermal Protection systems (TPS) are used as shields in space vehicles which encounter high heat and temperatures at the reentry altitudes. Among them, the cooling techniques and the ablative coatings are most popular. However, they have their own weight limitations. In the recent decade, …
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Scale-bridging molecular dynamics simulations of plasma-surface interactions
… plasma facing components in reactor vessels and thermal protection system in re-entry spacecraft. Due to the complex chemistry at the plasma surface boundaries, it is difficulty to either control or predict the effect of plasma on the patterning or erosion of the material. In this dissertation, …
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Development of low-thrust solid rocket motors for small, fast aircraft propulsion
… their size (and thus have low chamber pressure), thermal protection for the motor case, and small nozzles which can withstand long burn times.
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Preliminary design of a high enthalpy plasma tunnel for atmospheric re-entry research
… their interactions with a downstream sample of thermal protection material, and the response of the material as it is exposed to high reactive, high-temperature flow. The data collected from the experiments conducted at the facility will be used to verify computer models as well as material …
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