Download or read book On the Libration of a Gravity Gradient Stabilized Spacecraft in an Eccentric Orbit written by Albert J. Fleig (Jr.) and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: General analytical methods for predicting planar and three dimensional attitude motion of a gravity gradient spacecraft in an elliptical orbit are developed. Regions of stability from the linearized planar equation of Mathieu form are plotted versus inertia parameters and orbit eccentricity. Similar plots showing the effects of damping are presented. The planar equation for larger eccentricities is examined with asymptotic expansion methods (KBM) for increased accuracy. An analysis based on the Hamiltonian and using canonical transformations and the method of averaging is applied to the three degree of freedom equations. Thirty-two combinations of resonant eigenfrequencies, indicating both nonlinear and parametric resonances, and including six previously shown by Breakwell and Pringle, are found. Nineteen of these combinations lead to unbounded increases in the amplitude of oscillation of one or more of the spacecraft modes. Eight lead to significant interchanges of energy between modes. The remaining five have little effect.
Download or read book On the Libration of a Gravity Gradient Stabilized Spacecraft in an Eccentric Orbit written by Albert J. Fleig (Jr.) and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: General analytical methods for predicting planar and three dimensional attitude motion of a gravity gradient spacecraft in an elliptical orbit are developed. Regions of stability from the linearized planar equation of Mathieu form are plotted versus inertia parameters and orbit eccentricity. Similar plots showing the effects of damping are presented. The planar equation for larger eccentricities is examined with asymptotic expansion methods (KBM) for increased accuracy. An analysis based on the Hamiltonian and using canonical transformations and the method of averaging is applied to the three degree of freedom equations. Thirty-two combinations of resonant eigenfrequencies, indicating both nonlinear and parametric resonances, and including six previously shown by Breakwell and Pringle, are found. Nineteen of these combinations lead to unbounded increases in the amplitude of oscillation of one or more of the spacecraft modes. Eight lead to significant interchanges of energy between modes. The remaining five have little effect.
Download or read book Advances in Spacecraft Attitude Control written by Timothy Sands and published by BoD – Books on Demand. This book was released on 2020-01-15 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft attitude maneuvers comply with Euler's moment equations, a set of three nonlinear, coupled differential equations. Nonlinearities complicate the mathematical treatment of the seemingly simple action of rotating, and these complications lead to a robust lineage of research. This book is meant for basic scientifically inclined readers, and commences with a chapter on the basics of spaceflight and leverages this remediation to reveal very advanced topics to new spaceflight enthusiasts. The topics learned from reading this text will prepare students and faculties to investigate interesting spaceflight problems in an era where cube satellites have made such investigations attainable by even small universities. It is the fondest hope of the editor and authors that readers enjoy this book.
Download or read book NASA Technical Report written by and published by . This book was released on 1970 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1972 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1984 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1971 with total page 1290 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1976 with total page 1466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oil Empire written by Alison Fleig FRANK and published by Harvard University Press. This book was released on 2009-06-30 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the beginning of the twentieth century, the Austrian Empire ranked third among the world's oil-producing states (surpassed only by the United States and Russia), and accounted for five percent of global oil production. By 1918, the Central Powers did not have enough oil to maintain a modern military. How and why did the promise of oil fail Galicia (the province producing the oil) and the Empire? In a brilliantly conceived work, Alison Frank traces the interaction of technology, nationalist rhetoric, social tensions, provincial politics, and entrepreneurial vision in shaping the Galician oil industry. She portrays this often overlooked oil boom's transformation of the environment, and its reorientation of religious and social divisions that had defined a previously agrarian population, as surprising alliances among traditional foes sprang up among workers and entrepreneurs, at the workplace, and in the pubs and brothels of new oiltowns. Frank sets this complex story in a context of international finance, technological exchange, and Habsburg history as a sobering counterpoint to traditional modernization narratives. As the oil ran out, the economy, the population, and the environment returned largely to their former state, reminding us that there is nothing ineluctable about the consequences of industrial development.
Download or read book Influence of Solar Radiation Pressure on Orbital Eccentricity of a Gravity gradient oriented Lenticular Satellite written by William M. Adams (Jr) and published by . This book was released on 1965 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Orbital Mechanics of Flight Mechanics written by Robert Scott Dunning and published by . This book was released on 1973 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the XXth International Astronautical Congress written by P. Contensou and published by Elsevier. This book was released on 2013-10-22 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of the XXth International Astronautical Congress compiles selected papers presented at the 20th International Astronautical Congress held in Mar del Plata, Argentina in 1969. This book is divided into five main topics—spacecraft engineering, astrodynamics, astrionics, bioastronautics, and problems of education. In these topics, this compilation specifically discusses the equatorial vibrations of a long flexible boom on a spin-stabilized satellite of non-zero radius; heat transfer to linear bodies in two-dimensional hypersonic low density; and limits of accuracy of general perturbations for satellites moving under constant forces. The rapid optimization of multiple-burn rocket flights; data transmission for planetary studies; and comparison of theoretical and experimental attitude data for the DODGE spacecraft are also elaborated. This text also covers the Apollo life-support and protective systems; bioastronautical aspects of Apollo biomedical operations; and development and applications of hot water rockets. This publication is recommended for astrophysicists and scientists of other disciplines related to astronomy.
Download or read book NASA SP written by and published by . This book was released on 1962 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Comprehensive Dissertation Index 1861 1972 Engineering general and aeronautical written by Xerox University Microfilms and published by . This book was released on 1973 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Note written by and published by . This book was released on 1965 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spaceflight written by and published by . This book was released on 1971 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
