Shuttle entry guidance harpold

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August undefined, 2024

WebThe performance of the Orbiter entry guidance system has been excellent during all of the space shuttle flights. This paper summarizes the entry guidance objectives and control … WebShuttle entry guidance. Harpold, J. C. ; Graves, C. A., Jr. This paper describes the design of the entry guidance for the Space Shuttle Orbiter. This guidance provides the steering …

J. C. Harpold Semantic Scholar

WebJ. C. Harpold. Publications 7. h-index 3. Citations 474. Highly Influential Citations 21. Follow Author... Claim Author Page. Author pages are created from data sourced from our … WebThe Space Shuttle descent mission planning, mission design, deorbit targeting, and entry guidance have necessarily become interrelated because of the nature of the Orbiter's design and mission requirements. The Space Shuttle descent mission planning, mission design, deorbit targeting, and entry guidance have necessarily become interrelated because of … inchcape fixed price servicing

Entry guidance with smooth drag planning and non-linear tracking

WebShuttle Entry Guidance Mission Planning and Analysis Division February 1979 (NASJ%-TM-79949) SHUTTLE PFOG_A_. SPUTTL_ ENTRY GUIDANCE (_SA) ]9 00/16 N79-Tq791 Unclas 18760 ... SHUTTLE ENtrY GUIDANCE Jon C. Harpold Claude A. Graves, Jr. … WebJan 16, 2012 · The entry-glide guidance strategy for hypersonic vehicles that can satisfy both terminal and path constraints is investigated in this paper. We propose a quasi-equilibrium glide adaptive guidance methodology based on the quasi-equilibrium glide condition (QEGC), which innovatively utilizes the quasi-equilibrium glide phenomenon in … WebNov 1, 2024 · The entry guidance problem formulation is given in section 2. Then a novel neural network based online predictive guidance algorithm for high lifting vehicles is proposed in section 3. Following that, numerical simulations for nominal and dispersed cases are shown in section 4. Finally, the conclusion of this paper is provided in section 5. inchcape farnborough

Coupled linear parameter varying and flatness-based approach for …

Descent guidance and mission planning for space shuttle

WebApr 1, 2024 · The premier research on the hypersonic glide vehicle guidance was the shuttle entry guidance (Harpold and Gavert, 1983), which modulates the profile of atmosphere … WebThis paper describes the design of the entry guidance for the Space Shuttle Orbiter. This guidance provides the steering commands for trajectory control from initial penetration of … income tax scrutiny criteriaWebAug 14, 2000 · The Space Shuttle’s two-dimensional entry trajectory planning method is extended to three dimensions. Both angle-of-attack and angle-of-bank variations are used to control the entry trajectory. The trajectory planning is done with a third-order system of differential equations using the drag and lateral accelerations as intermediate controls. … inchcape family estates

"WebFeb 17, 2014 · A major breakthrough of the guidance design of TAEM vehicles can be attributed to the space shuttle entry guidance . ... J. C. Harpold and C. A. Grave, “Shuttle entry guidance,” NASA n79-74791, NASA, 1979. View at: ... “Test results for entry guidance methods for space vehicles,” Journal of Guidance, Control, and Dynamics, ... " - Shuttle entry guidance harpold

Shuttle entry guidance harpold

Shuttle entry guidance - NASA Technical Reports Server (NTRS)

WebJun 1, 2015 · In this paper, a robust entry guidance law without drag rate measurement is designed for drag-tracking. First, the drag dynamics with uncertainties is formulated, and a state feedback guidance law (desired bank angle magnitude), which requires the drag and its rate as feedback information, is designed to make the system with the drag-tracking ... WebThe suggested guidance scheme, relying on flatness approach, is applied to the non-linear model of the European Atmospheric Re-entry Demonstrator. It is shown that the overall guidance scheme achieves robust stability and performance, even in the presence of entry point kinematics dispersions.

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WebJun 1, 2015 · Consider the Mars atmospheric entry flight, and vehicle, reference drag profile and other data from [1] are used. Later, the comparison of our law with the law in [1] will be given by simulation. The Mars lander has surface area of 16 m 2 and weighs 992 kg [19].It is assumed that the vehicle flies with trim angle of attack, and the lift-to-drag ratio and the … WebNov 1, 2015 · The premier research on the hypersonic glide vehicle guidance was the shuttle entry guidance (Harpold and Gavert, 1983), which modulates the profile of atmosphere drag acceleration to integrate ...

WebSpace Shuttle entry guidance performance results Previously cited in issue 19, p. 2990, Accession no. A82-38983. Document ID. ... Document Type. Reprint (Version printed in journal) Authors. Harpold, J. C. (NASA Johnson Space Center Descent Flight Analysis Branch, Houston, TX, United States) Gavert, D. E. (Rockwell International Corp. Downey ... WebMay 23, 2012 · Space Shuttle entry guidance performance results. Jon C. Harpold and Donald E. Gavert; Jon C. Harpold. NASA Johnson Space Center, Houston, Texas. Search …

WebJun 1, 2024 · In the first category, a reference trajectory is stored on-board and modulated during flight to meet the mission requirements. The bench mark for entry guidance is the …

Webpaper, we study the guidance problem in the entry phase. There are two categories of entry guidance: reference-tracking guidance and predictor–corrector guidance. Shuttle entry guidance (Harpold and Graves, 1979) is the benchmark for reference-tracking guidance. This guidance plans a longitudinal reference in the drag-vs-speed corridor income tax scotland 2020 2021 inchcape fleet solutionsWebDec 20, 2016 · In this paper, an adaptive, disturbance-based sliding-mode controller for hypersonic-entry vehicles is proposed. The scheme is based on high-order sliding-mode theory, and is coupled to an extended... income tax scrutiny how many yearsWebNov 8, 2024 · Harpold and Graves planned the reference drag acceleration profile using EGC, and tracked the reference drag profile by configuring the frequency and damping of the drag dynamic system, which used in reentry guidance of Space Shuttle. income tax scrutiny for senior citizensWebJul 1, 2013 · The premier research on the hypersonic glide vehicle guidance was the shuttle entry guidance (Harpold and Gavert, 1983), which modulates the profile of atmosphere drag acceleration to integrate ... inchcape foundationWebDec 27, 2024 · Entry guidance is a fundamental element of atmospheric entry missions. However, during the atmospheric entry, there are many uncertainties that cannot be predicted and ultimately lead to trajectory dispersions. Linear covariance analysis, widely used for navigation system design and analysis, is a technique that can also be used to … inchcape finlandWebFeb 1, 1985 · The Space Shuttle entry guidance meets the objectives of accommodating a large variety of mis- ... Harpold, Jon C.: Analytic Drag Control Entry Guidance System. JSC Internal Note No. 74-FM-25, 1974. income tax search pan