Refine Your Search

Topic

Search Results

Viewing 1 to 12 of 12
Technical Paper

Thermal Control in an Ambitious, Low-Cost Small-Sat Program

1998-07-13
981640
Development, fabrication and launch of the German X-ray satellite ABRIXAS has been implemented as a pilot project in order to minimize program costs by introducing new management, procurement and verification methods. For the thermal control subsystems key issues are the early project involvement of thermal engineers in an integrated team, a competitive procurement policy without rules imposed by the customer and a verification philosophy which combines extensive thermal analysis with a reduced thermal test program involving critical components and a spacecraft system test. Besides these subjects the paper includes a description of design verification of critical units by analysis and thermal balance tests.
Technical Paper

Proteus Small-Sat Family: Multi-Mission Thermal Control Design and Performances

2006-07-17
2006-01-2041
The generic PROTEUS program was initiated by CNES and Alcatel Alenia Space by the end of 1996 to develop a multi mission platform for LEO small scientific Satellites. From a thermal control point of view, the ambitious aim was to base the mission adaptability solely on the modification of the radiator sizes and the active thermal control software parameters. The Satellite JASON-1 (successor of Topex Poseidon), which was launched in December 2001 is the first application of the PROTEUS platform. Thanks to more than 4 years of exploitation (designed for 5 years), the PROTEUS/JASON-1 thermal control has definitely proven its robustness. Because of this successful flight operation, 5 other platforms have been contracted. These platforms will benefit from developments to bear the heavier and more dissipative payloads to be launched between 2006 to 2008. Calipso, the first Satellite which benefits from these imrovements was delivered to launcher authority in July 2005.
Technical Paper

Emerging Loop Heat Pipe Applications for Small-Sat, MARS Mission and ISS

2002-07-15
2002-01-2464
Loop Heat Pipes (LHP) emerge as standard equipment for spacecraft thermal control. Based on a co-operation agreement between TAIS, Moscow and OHB-System AG, Bremen several thermal control projects for Mars mission, ISS and small satellites have been initiated, which are all based on loop heat pipes. The thermal control systems, described in this paper, are currently under development or hardware manufacturing. The paper will detail the application scenario, development steps and first test results.
Article

Orbex debuts innovative smallsat launch vehicle

2019-02-20
Orbex, a developer of small satellite (smallsat) launch vehicles based in Forres, Scotland, has unveiled its “Prime” launch vehicle. The rocket utilizes several novel technologies, including the world’s largest metal rocket engine produced as a single piece through additive manufacturing (AM).
Magazine

Aerospace & Defense Technology: October 2021

2021-10-01
Developing Object Detection Systems for Autonomous Underwater Vehicles Developing Thermoplastic Composites for Use in Commercial Aircraft An Automated System for Multi-Physics Modeling Taking the Tactical Cloud with You Small Form Factor, Modular Data Centers at the Edge of the Battlefield Remanufacturing Reimagined How Selective Electroplating Extends Service Life and Reduces the Cost of Aerospace Components Satellite Paves the Way for Improved Storm Tracking Solar-Powered Satellite Hardware in Orbit Impact of Satellite Intelligence, Surveillance and Reconnaissance on Modern Naval Operations Determining whether afloat availability of satellite ISR, a technology that is relatively new, fundamentally changed naval operations and if so, to what degree. 3D Data Acquisition Platform for Human Activity Understanding Implementing motion capture devices, 3D vision sensors, and EMG sensors to cross validate multi-modality data acquisition and address fundamental research problems involving the representation and invariant description of 3D data, human motion modeling and applications of human activity analysis, and computational optimization of large-scale 3D data.
Magazine

Aerospace & Defense Technology: June 2022

2022-06-01
Designing for Space and Other Extreme Environments The Next Generation of Mission-Critical Communications Infrastructure is Here Designing Transportable, High-Performance AI Systems for the Rugged Edge Digitalization in the Aerospace Sector From Product Design to Manufacturing & Operations 3D Printing Metal Parts on a Ship What Does the Navy Require to Make the Dream a Reality? Pushing the Boundaries of RF Passive Hardware with Additive Manufacturing What is Pulse Shaping? Unmanned Aircraft Systems to Support Environmental Applications within USACE Civil Works The U.S. Army Corps of Engineers (USACE) has identified a number of research and development (R&D) opportunities to help reduce disaster risks, including cost-efficient technology, such as un-manned aircraft system (UAS) technology for accurate, detailed, and timely two-dimensional and three-dimensional monitoring of coastal and riverine landscapes.
Magazine

Aerospace & Defense Technology: June 2023

2023-06-01
Overcoming Machining Productivity Challenges with Aerospace Components Why the Turbomachinery Industry is Increasingly Bullish on Additive Manufacturing 3D-printed metal-alloys are answering critical needs for high fluid flow, high-pressure parts. Airborne Inspection Sensor Evolves with LiDAR, Mid-IR and Artificial Intelligence Air Force eVTOL Research and Development Programs Make Remote Pilot Progress Creating a Digital Gateway for RF Domain Will Advance Designs That Meet DoD Initiatives Understanding the Unique RF Interconnect Requirements for Ultra-Demanding Hypersonic Missile and Satellite Applications ADS-B Classification Using Multivariate Long Short-Term Memory This analysis extends previous research that used long short-term memory-fully convolutional networks to identify aircraft engine types from publicly available automatic dependent surveillance-broadcast (ADS-B) data.
Magazine

Aerospace & Defense Technology: August 2023

2023-08-03
Electrifying Aviation: The Path to Decarbonizing the Skies /Electric aviation mirrors the early stages of the electric vehicle revolution Advances in Military Avionics Technologies Create New Challenges for RF Test and Measurement Plasma Electrolytic Oxidation: The Future of Lightweight Designs in Aerospace and Defense Advanced RF Simulation Reduces Cost and Schedule Risk Assure 5G NTN Performance Before Launch In the complex and quickly evolving 5G NTN landscape, simulating, emulating, and evaluating RF systems boosts mission success. Qualification of Multi-Channel Direction Finding Radar Receivers in The Lab Bullet Impact Testing of Ammunition and Explosives at Picatinny Arsenal A bullet impact (BI) test for evaluating the response of energetically loaded items has been established at the U.S. Army Combat Capabilities Command (DEVCOM) Armaments Center (AC) Explosive Development Facility.
Article

Firefly Aerospace is the latest addition to Florida’s “Space Coast”

2019-03-01
Cedar Park, Texas-based Firefly Aerospace, Inc. has reached an agreement with Space Florida – the state’s aerospace economic development agency – to establish a facility at Cape Canaveral Spaceport. Through the agreement, Firefly, a spacecraft and launch vehicle developer and provider of launch and in-space services, will conduct launch operations at Cape Canaveral’s Space Launch Complex 20 (SLC-20) and create manufacturing facilities at Exploration Park, Florida.
Article

OneWeb ramps up satellite production with new round of funding

2019-03-21
OneWeb has secured $1.25 billion in its latest funding round. The company, which seeks to deploy a satellite communication network by 2021 that will enable global high-speed, low-latency Internet access, has now raised a total of $3.4 billion to fund its mission. Tokyo-based Softbank Group Corp., Mexico’s Grupos Salinas, San Deigo-based Qualcomm Technologies Inc., and the Government of Rwanda led the last round of funding.
Article

Virgin Galactic takes first passenger to space

2019-02-26
Virgin Galactic’s spaceplane, SpaceShipTwo or “VSS Unity,” made its fifth powered test flight and second space flight late last week with three individuals on board. In addition to pilots Dave Mackay and Mike Masucci, Virgin Galactic’s first non-pilot passenger and the world’s first female commercial spacefarer – Beth Moses – also qualified for commercial astronaut wings from the Federal Aviation Administration.
X