Low-Cost Molded Plastic Sounding Rocket Motors

1971 ◽  
Vol 8 (10) ◽  
pp. 1083-1085
Author(s):  
JAMES C. WARD
Keyword(s):  
Low Cost ◽  
Sounding Rocket ◽  
Rocket Motors

A Primer for Telemetry Interfacing in Accordance with NASA Standards Using Low Cost FPGAs

2016 ◽  
Vol 05 (01) ◽  
pp. 1640002
Author(s):  
Jake McCoy ◽  
Ted Schultz ◽  
James Tutt ◽  
Thomas Rogers ◽  
Drew Miles ◽  
...  
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Photon Counting ◽  
Sounding Rocket ◽  
Photon Counting Detector ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Custom Hardware ◽  
Commercial Off The Shelf ◽  
Main Component

Photon counting detector systems on sounding rocket payloads often require interfacing asynchronous outputs with a synchronously clocked telemetry (TM) stream. Though this can be handled with an on-board computer, there are several low cost alternatives including custom hardware, microcontrollers and field-programmable gate arrays (FPGAs). This paper outlines how a TM interface (TMIF) for detectors on a sounding rocket with asynchronous parallel digital output can be implemented using low cost FPGAs and minimal custom hardware. Low power consumption and high speed FPGAs are available as commercial off-the-shelf (COTS) products and can be used to develop the main component of the TMIF. Then, only a small amount of additional hardware is required for signal buffering and level translating. This paper also discusses how this system can be tested with a simulated TM chain in the small laboratory setting using FPGAs and COTS specialized data acquisition products.

Low-cost student-manufacturable liquid oxygen-ethanol sounding rocket

2019 ◽  
Author(s):  
Anil P. Nair ◽  
Daniel I. Pineda ◽  
R. Mitchell Spearrin ◽  
Dave E. Crisalli
Keyword(s):  
Low Cost ◽  
Liquid Oxygen ◽  
Sounding Rocket

Sounding Rocket "HEROS" - A Low-Cost Hybrid Rocket Technology Demonstrator

2017 ◽  
Author(s):  
Mario Kobald ◽  
Ulrich Fischer ◽  
Konstantin Tomilin ◽  
Anna Petrarolo ◽  
Paula Kysela ◽  
...  
Keyword(s):  
Low Cost ◽  
Sounding Rocket ◽  
Hybrid Rocket ◽  
Rocket Technology ◽  
Technology Demonstrator

Margin of Safety Estimation of Tongue and Groove Joint of Rocket Motors with Discontinuous End Ring

2018 ◽  
Vol 877 ◽  
pp. 354-359
Author(s):  
G. Vinod ◽  
Manashkumar Bhadra ◽  
K.S. Narayanan ◽  
V. Thaddeus Basker
Keyword(s):  
Structural Analysis ◽  
Low Cost ◽  
Solid Model ◽  
Rocket Motors ◽  
Final Assembly ◽  
Large Size ◽  
Metal Seal ◽  
Margin Of Safety ◽  
Safety Estimation ◽  
High Thrust

Rocket motors are used worldwide in both upper and booster stages.Solid rockets can provide high thrust for relatively low cost. Considering the large size of solid motors, these motors are to be designed as segmented motor cases. Segmented motor cases have to be joined by segment joint. Segment joint with tongue and groove configuration provides performance reliability in effective sealing of joints. A tongue-and-groove arrangement employs a pressure-energized metal seal which expands radially when the cylinders are internally pressurized. The radial expansion enhances the sealing effect of the metal seal between the tongue and the groove. Metal end rings welded to the shell motor cases and shear pins for the final assembly provides the sealing. The load sharing among the pins depends on the presence of the slit in a ring, whole & pin dimensional clearances, internal pressure and friction between the metal end rings. Structural analysis of a discontinuous metallic segment ring and shear pins iscarried out in this study. Structural analysis is based on detailed solid model for the segment joint. The load augmentation in the shear pin near the discontinuity is worked out based on a load augmentation factor derived out of FE analysis. The study further extended to a deviation in a nearby hole / pin combination at the vicinity of the discontinuity and is presented in this paper.

scholarly journals Introduction to the Special Issue on Sounding Rockets and Instrumentation

2016 ◽  
Vol 05 (01) ◽  
pp. 1602001 ◽  
Author(s):  
Steven Christe ◽  
Ben Zeiger ◽  
Rob Pfaff ◽  
Michael Garcia
Keyword(s):  
Low Cost ◽  
Lower Ionosphere ◽  
Sounding Rocket ◽  
Satellite Orbits ◽  
Launch Vehicles ◽  
Sounding Rockets ◽  
Earth’S Atmosphere ◽  
Scientific Investigations ◽  
Military Applications ◽  
Earth's Atmosphere

Rocket technology, originally developed for military applications, has provided a low-cost observing platform to carry critical and rapid-response scientific investigations for over 70 years. Even with the development of launch vehicles that could put satellites into orbit, high altitude sounding rockets have remained relevant. In addition to science observations, sounding rockets provide a unique technology test platform and a valuable training ground for scientists and engineers. Most importantly, sounding rockets remain the only way to explore the tenuous regions of the Earth’s atmosphere (the upper stratosphere, mesosphere, and lower ionosphere/thermosphere) above balloon altitudes ([Formula: see text]40[Formula: see text]km) and below satellite orbits ([Formula: see text]160[Formula: see text]km). They can lift remote sensing telescope payloads with masses up to 400[Formula: see text]kg to altitudes of 350[Formula: see text]km providing observing times of up to 6[Formula: see text]min above the blocking influence of Earth’s atmosphere. Though a number of sounding rocket research programs exist around the world, this article focuses on the NASA Sounding Rocket Program, and particularly on the astrophysical and solar sounding rocket payloads.

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