Whole Spacecraft Vibration Isolation System
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Whole Spacecraft Vibration Isolation System
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Author : Behzad Jafari
language : en
Publisher:
Release Date : 2018
Whole Spacecraft Vibration Isolation System written by Behzad Jafari and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
The launch phase is the harshest mechanical environment a spacecraft experiences through its lifetime. The severity of the vibrations during the launch phase poses a serious challenge for the design of the spacecraft which generally contains many sensitive electronic components. The need to guarantee the launch survival of the spacecraft has instigated a significant amount of research in the field of vibration isolation of the whole spacecraft, which resulted in development of various passive vibration isolation systems and their widespread use since two decades ago. The present study is aimed to analyze the feasibility of implementation of semi-active vibration isolation system instead of a passive one and to compare its potential benefits in attenuating the vibrations transmitted to the sensitive components of the spacecraft during the launch phase. First, the passive system has been studied and a methodology for design optimization of the multi-degree of freedom system in frequency and time domain has been formulated. The optimized passive system is then used as a baseline to compare the performance of the optimal passive isolator with that of a semi-active system. Semi-active control strategies based on Skyhook (SH) and combined Skyhook and Acceleration Driven Damping (SH-ADD) have been utilized to control the damping of the isolator between spacecraft and launch vehicle to attenuate vibration. The results showed that while semi-active system has a significant advantage over passive system to attenuate vibrations when the excitations are harmonic or narrow band, the results are not as promising when broadband random excitation, which is a realistic model of the excitations that the spacecraft experiences during launch, is considered. This calls into question the practical effectiveness of the semi-active system to be used in whole spacecraft vibration isolation system. Further research work with experimental tests are required to verify if semi-active systems can have a practical application in whole spacecraft isolation system.
Structure Vibration Vibration Mitigation Materials And Structures
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Author : Zhao-Dong Xu
language : en
Publisher: Frontiers Media SA
Release Date : 2019-12-04
Structure Vibration Vibration Mitigation Materials And Structures written by Zhao-Dong Xu and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-12-04 with categories.
Vibration is a common phenomenon when a structure is exposed to one or multiple mechanical or environmental actions, always at great cost to lives and to the economy. In order to reduce the adverse impact of vibration, vibration mitigation materials and structures have recently been at the center of attention. This book “Structure Vibration: Vibration Mitigation Materials and Structures” as the tip of the iceberg, provides a window to let people know about the flourishing of this young field. Twelve original research papers and one review paper have been included in this book to represent the recent development of vibration mitigation technology. The vibration mitigation material manufacture process, testing, analysis, and application have completely thoroughly studied. We wish more cutting-edge achievements will arise to benefit mankind and continually promote the development of vibration mitigation materials and structures.
Whole Spacecraft Vibration Isolation
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Author : Gregory Karahalis
language : en
Publisher:
Release Date : 1999-03-01
Whole Spacecraft Vibration Isolation written by Gregory Karahalis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-01 with categories.
The Department of Defense identified launch vibration isolation as a major research interest. Reducing the loads a satellite experiences during launch will greatly enhance the reliability, lifetime, and payload to structure ratio. DoD satellite programs stand to benefit significantly from advances in vibration isolation technology.
Recent Launches Using The Softride Whole Spacecraft Vibration Isolation System
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Author : C. D. Johnson
language : en
Publisher:
Release Date : 2001
Recent Launches Using The Softride Whole Spacecraft Vibration Isolation System written by C. D. Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Proceedings Of The 13th Reinventing Space Conference
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Author : Scott Hatton
language : en
Publisher: Springer
Release Date : 2018-04-28
Proceedings Of The 13th Reinventing Space Conference written by Scott Hatton and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-04-28 with Technology & Engineering categories.
Reinventing Space is the largest global conference and exhibition for one of the space industry’s fastest growing sectors. Over its 82-year history, the British Interplanetary Society has acted as a forum for new and innovative ideas and developments in astronautics, low-cost access and utilization of space. These conference proceedings reflect the work done at the 13th Reinventing Space Conference, the second biggest space event in the UK during 2015. The global economic climate is creating demand to reduce expenditure, leading to new challenges and opportunities in the world’s space industry. The need to create more responsive systems and launchers that are capable of delivering to space quickly, cheaply and reliably has never been more vital. This collection from RIspace brings together industry, agency, government, financiers, academia and end users. It focuses on the commercialization of space and addresses a range of topics including low-cost launch opportunities, the rebirth of constellations, beyond LEO activities and novel technologies. These papers encourage and promote forward-thinking ideas and concepts for the future exploration and utilization of space. The proceedings address: • New ways of doing business in space – how do we make money on affordable and responsive space missions? • Tactical space systems – how do we best serve the needs of defense missions; civilian missions; the needs of emergency responders? • Interplanetary missions – can we use new technology to explore the Solar System at dramatically lower cost? • What are the methods, processes, and technologies that we can use to make major reductions in the cost of space missions? • New application areas for low-cost space systems – which ones can take advantage of newer, much lower-cost systems? • How do we educate and motivate the coming generation, without whom there won’t be a space industry?
Smart Structures And Materials
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Author :
language : en
Publisher:
Release Date : 2001
Smart Structures And Materials written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Damping (Mechanics) categories.
Structures Technology For Future Aerospace Systems
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Author : Ahmed Khairy Noor
language : en
Publisher: AIAA
Release Date : 2000
Structures Technology For Future Aerospace Systems written by Ahmed Khairy Noor and has been published by AIAA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Airframes categories.
Proceedings Of The 4th Annual International Conference On Material Machines And Methods For Sustainable Development Mmms2024
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Author : Banh Tien Long
language : en
Publisher: Springer Nature
Release Date : 2025-08-02
Proceedings Of The 4th Annual International Conference On Material Machines And Methods For Sustainable Development Mmms2024 written by Banh Tien Long and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-08-02 with Technology & Engineering categories.
This book presents selected, peer-reviewed proceedings of the 4th International Conference on Material, Machines and Methods for Sustainable Development (MMMS2024), held in the city of Da Nang, Vietnam, from September 18 to 21, 2024. The conference establishes a comprehensive understanding of the key elements that drive sustainable development, with a particular focus on materials, machinery, and methodologies. Building on this foundation, the conference seeks to provide a holistic approach that guides policymakers, industries, and researchers in aligning local technological advancements with global sustainable development objectives. This alignment is intended to support informed decision-making that prioritizes greener solutions, particularly in relation to materials, machinery, and methods. The papers presented in Volume 1 of this proceedings collection reflect cutting-edge advancements in the fields of materials science and mechanical engineering. Contributions from scholars, research institutions, and industry experts cover a diverse range of topics, including electrodeposition of advanced alloys, optimization of 3D printing parameters for enhanced part quality, and deep learning models for surface roughness assessment. Significant attention is given to material innovations such as platinum-doped tin dioxide synthesis, as well as advanced modeling techniques for piezoactive composites used in energy harvesting systems. In the realm of mechanical engineering, several papers explore critical challenges such as the design and analysis of planetary gear systems with brakes, the development of non-circular gears for electric vehicle gearboxes, and the impact of mathematical transformers on predicting the limit strength of composite columns. Other contributions address structural responses of hybrid steel fiber-reinforced concrete under various conditions and advanced methodologies like using generative design for mechanical products. A significant portion of the research emphasizes material modeling, eco-material technologies, and sustainable manufacturing processes, with applications ranging from aerospace components to energy-efficient ship structures.
Official Gazette Of The United States Patent And Trademark Office
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Author : United States. Patent and Trademark Office
language : en
Publisher:
Release Date : 2001
Official Gazette Of The United States Patent And Trademark Office written by United States. Patent and Trademark Office and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Patents categories.
Proceedings Of The 5th International Conference On Electrical Engineering And Automatic Control
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Author : Bo Huang
language : en
Publisher: Springer
Release Date : 2016-07-15
Proceedings Of The 5th International Conference On Electrical Engineering And Automatic Control written by Bo Huang and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-07-15 with Technology & Engineering categories.
On the basis of instrument electrical and automatic control system, the 5th International Conference on Electrical Engineering and Automatic Control (CEEAC) was established at the crossroads of information technology and control technology, and seeks to effectively apply information technology to a sweeping trend that views control as the core of intelligent manufacturing and life. This book takes a look forward into advanced manufacturing development, an area shaped by intelligent manufacturing. It highlights the application and promotion of process control represented by traditional industries, such as the steel industry and petrochemical industry; the technical equipment and system cooperative control represented by robot technology and multi-axis CNC; and the control and support of emerging process technologies represented by laser melting and stacking, as well as the emerging industry represented by sustainable and intelligent life. The book places particular emphasis on the micro-segments field, such as intelligent micro-grids, new energy vehicles, and the Internet of Things.