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1966019609-002 i 0 • n l _," i i ,, i, i m i "4 VIRGINIA I I .i POLYTECHNIC t ) i INSTITUTE --. i i i i ENGINEERING EXTENSION SERIES CIRCULAR No. 4 YI (In four parts: A,B,C,D) "_ ¢ PART A ._ ! 4 f • zi PROCEEDINGS OF THE CONFERENCE ON -- The Role of 3z""muta' #on" in Space Technology AUGUST 17-21, 1964 Supported by grants from the National Aeronautics and Space Administration and the National Science Foundation; assisted in planning and presentation , by the NASA Langley Rasearch Center. 1966019609-003 ACKNOWLEDGMENTS VPI is indebted to the National Science Foundation for providing funds for travel and expenses for educational personnel attending the conference and to the National Aeronautics and Space Administration (through the • Virginia Associated Research Center) for providing funds for speakers and incidental expenses. VPI is particularly indebted to the Langley Research Center of NASA for assistance in planning the conference and to the NASA in general for providing many of the speakers and session chairmen. The helpful co-operation of Poly-Scientific Division, Litton Precision i Products, Inc. of Blacksburg, for arranging a plant tour showing their facil- ities for manufacturing slip rings and torque motors and for sponsoring the reception before the banquet is also acknowledged, i The conference committee wishes also to express its gratitude to the conference speakers, session chairmen and local personnel who have contri- i ! buted to the success of the meeting. _ The Conference Committee M. L. Collier, Jr., Professor, Engineering Mechanics J. B. Eades, Jr., Head, Aerospace Engineering T. E. Gilmer, Jr., Professor, Physics J. A. Jacobs, Head, Physics F. J. Maher, Professor, Engineering Mechanics, and Chairman i J 1966019609-004 # i TABLE OF CONTENTS PART A List of Conference Attendees SPACE ENVIRONMENT Vacuum Technology - Donald Santeler I / ./ Electromagnetic Radiation in Space - Francis J. Clauss II Ionizing Particle Radiations Effects and Simulation Consideration -J. E. Duberg and W. C. Hulten llI _-. Meteoroids: Needs for Penetration Scaling Laws and the Potentials of Simulation Techniques - E. T. Kruszewski IV ___. Magnetic Fields : Reasons for Simulation and Methods Available - Normal F. Ness V/ I \ 4' 1966019609-005 i i INTRODUCTION 'I The complexity of space exploration, manned or unmanned, dictate_ the need for prior knowledge of the interaction of operations, materials and humans with the hostile environment of space. Grotmd simulation of these problems is a kighly challenging area of the entire space effort. This conference represents an attempt to outline the principles governing simulation in general, to explore its limits in design, fabri- cation and operation and to correlate early studies _ith information gain- ed from actual flights to date. A large fraction of the total investment of manpower, materials and money in the space effort will continue to be devoted toward ground sim- ulation of space environment and operations. Many scientists (from al3 branches of physical and life sciences) and engineers are engaged in this effort. It was the purpose of the conference to present to educational per- sonnel and to representatives from industry and government agencies the most recent efforts and results in the field of ground simulation, The benefits of such a conference to educational personnel are twofold; to acquaint them with the type of activity in which many of their present students will be engaged and to open new directions for their own in- vest igations, The participation of scientists from industry and government agencies was welcomed and it is hoped that by discussion they contributed to the general understanding and it is further hoped that they profited by association with others in their field. 1966019609-006 J CONFERENCE ATTENDEES LIST OF SPEAKERS GEORGE A. ALBRIGHT JOHN E. DUBERG Chief, Life Science & Space Assistant Director, Environment Langley Research Center Republic Aviation Corporation NASA Farmingdale, Long Island, Hampton, Virginia New York SIEGFRIED J. GERATHEWOHL JOHN M. BOZAJIAN Life Science Manager Manager, Engineering Mechanics NASA Headquarters Department Washington, D. Co Hughes Aircraft Company E1 Segundo, California R.M. HONE Chairman, Instrumentation GEORGE W. BROOKS Engineering Head, Vibration & Dynamics Branch The University of Michigan NASA -Langley Research Center _]n Arbor, Michigan Hampton, Virginia E. T. KRUSZEWSKI WILLIAM A. BROOKS, JRo Head, Protective Structures Aerospace Technologist Section NASA - Langley Research Center NASA - Langley Research Center Hampton, Virginia Hampton, Virginia JOHN LOTT BROWN S.C. LIN Department of Physiology Principal Research Scientist School of Medicine Everett Research Laboratory University of Pennsylvania AVCO Corporation Philadelphia, Pennsylvania Eve?ett, Mass achusett s THOMAS N. CANNING NORMAN F. NESS Chief, Hypersonic Free Flight P_ysicist, Space Science Div. Ames Research Center - NASA Goddard Space Flight Center Moffett Field, California NASA Greenbelt, Maryland RANDALL M. CHAMBERS Head, Hi,an Factors J. LEITH POTTER U. S. Naval Air Development Center Manager, Research Branch Johnsville, Pennsylvania Von Ks_man Facility ARO, Inc. FRANCIS J. CLAUSS Arnold Air Force Station, Senior Staff Scientist Tennessee Lockheed Missiles & Space Company Palo Alto, California 7 1966019609-007 a NILMER He REED SIDNEY WEINSTEIN Assistant Head, Director, Neuropsychological Aeroelasticity Branch Laboratory Albert Einstein NASA - Langley Research Center College of Medicine Hampton, Virginia N_w_ York, New York HARRY L. RUNYAN CHARLES B. WESTBROOK Head:, Structural Dynamics Branch Chief, Control Criteria Branch NASA - Langley Research Center Flight CoDtrol Division Hampton, Virginia Wright-Patterson AFB, Ohio DONALD J. SANTELER Vice-President - Technical HERBERT A. WILSON, JR. Director Chief, Applied Materials and Aero Vac Corporatioa Physics Division Troy, New York NASA - Langley Research Center Hampton, Virginia G. ALLAN SMITH Chief, Guidance & Controls Systems ARTHUR W. VOGELEY Branch Head, Guidance and Control Ames Research Center -NASA Bra,_ch Moffett Field, California NASA - Langley Research Center Hampton, Virginia BANQUET SPEAKER RAYMOND L. BISPLINGHOFF Associate Administrator for Advanced Research and Technology National Aeronautics and Space Administration Washington, D. C. LIST OF PARTICIPANTS AND GUESTS ROBERT L. ARMSTRONG U.H. BENTS University of Michigan University of Missouri J. EARL BAILEY E.F. BLICK University of Alabama Oklahoma State University WILLIAM J. BARCLAY A.E. BOCK North Carolina State University U.S. Naval Acade_ JEWEL B. BARLOW JOHNNY E. BURKHALTER Aubuzm University Auburn University C"_ARLESE. BELL, JR. JOSEPH W. BURSIK Old Dominion College Rensselaer Polytechnic Institute u_ } 1966019609-008 WILLIAM J. BYATT _;ARION A. FORBES University of New Mexico Broome Technical College CHARleS E. CARVER, JR. E o I. FREY University of Massachusetts Mass. Inst. of Technology ANSEL CHALLENNER JOSEPH H. GIBBONS University of Oklahoma University of South Carolina MING M. CHEN ANTHONY B. GIORDANO Boston University Poly. Inst. of Brooklyn 7' " D° H. CHENG WARD J. HAAS The City College of New York University of Missou_'_ d E. H. CHERRINGTON, JR. CHARLES E. HARP 'Fne University of Akron University of Oklahoma H. D. CHRISTENSEN DONALD R. HAWORTH University of Arizona Oklahoma State University S. J. CITRON H.S. HAYRE Purdue University Kansas State"University ALLEN K. CLARK ARTHUR HEBARD 01d Dominion College Stanford University FORREST P. CLAY, JR. R.M. HELMS Old Dominion College East Carolina College EUSTACE R. CONWAY PAUL J. HERMANN University of South Carolina Iowa State University MERL D. CREECil LESLIE R. HESTER Ne_ Mexico State University Mississippi State University HERBERT L. DURST THOMAS J. HIGGINS Broome Technical Community College University of Wisconsin LESTER T, EARLS A.N. HOSNY Iowa State University University of South Carolina FREDERICK H. EDWARDS ARTHUR V. HOUGHTON University of Massachusetts University of New Mexico N. F. ERASLAN JOHN L. IMHOFF Louisiana State University University of Arkansas C. W. F. EVERITT JOSEPH JAFFE Stanford University Columbia University WILLIAM R. FENRANTE R.L. JENNINGS University of Rhode Island University of Virginia I 1966019609-009 o J e M. R. JOHNSON, JR. A. RONALD McKAY Louisiana Poly, Institute Utah State University S. W. JOHNSON LAWRENCE C. NEALE i Air Force Inst. of Technology Worcester Poly, Institute A, ROLAND JONES ROY J. NICHOI_ Virginia Military Institute University of Michigan LOUIS A. JONES JAMES R. NICHOLSON North Carolina State University The Ohio State University M. J. KAPRAL, JR. JOSEPH M. 0'BYRNE Broome Technical College University o_ Massachusetts CHarLES KILLGORE AUBREY E. PALMER Louisiana Poly. Institute Duke University THOMAS J. K0ZIK WYLLI_M B_ PARDO Texas A & M University University of Miami ROBERT J. KROLL E_D.N K. PAI:_KS University of Cincinnati Tkd.versity of Arizona ROBEnT A. KROMHOUT THOMAS A. PARNELL The Florida State University University of North C_'_'olina ALFRED A. KUEBL_ PEILIPS PIKE Rutgers University University of South C_!'_'lina IRWIN I_ LAWN J.D. PINSON Broome Technical College Oklahoma State 0n1,_:v Lty RICHARD J. LEITE SOL D. PRF2L%"KY University of Michigan Fairleigh Dlch,4v_<_ _nlversity RALPH A, LOWRY MILTON Pd_,_ILr_ University of Virginia Georgia Inst_ ,;fTachnology C. S. MARTIN GEORGE M, RESCH Georgia Inst. of Technology Florida State University GEORGE B. MATTHEWS T0"RGUT SARPKJ[YA University of Virginia University of Nebraska LEONARD