Dynamic behavior of intermittent combustion oscillations in a model rocket engine combustor

Focusing on the requirements of safety and reliability of fuze setback arming device of rocket-assisted projectile, a zigzag groove setback device with two degree of freedom was designed with Inventor 6. The dynamic simulation is developed under environment of VisualNastran. The optimum parameters of up inertia-cylinder mass, down inertia-cylinder mass, up inertia-spring rigidity and down inertia-spring rigidity were tested by orthogonal method and simulated. The results indicate that this setback device can effectively differentiate setback overload in launch and impact overload at service handling; credible arming time of fuze is about 128ms when the even overload of the rocket engine is 100g; the optimum mass of up inertia-cylinder and down inertia-cylinder are respectively 3.19g and 1.41g, the optimum rigidity of up inertia-spring and down inertia-spring are respectively 32.7 N/m and 21.8 N/m.

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Model rocket engine burn injuries: The need for stricter regulation

Journal of Emergency Medicine ◽

10.1016/0736-4679(94)90274-7 ◽

1994 ◽

Vol 12 (3) ◽

pp. 325-330 ◽

Cited By ~ 1

Author(s):

Michael T. Lynch ◽

Kenneth T. Bellian ◽

Richard F. Edlich ◽

Harvey N. Himel

Keyword(s):

Rocket Engine ◽

Burn Injuries ◽

Model Rocket Engine

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Using a Model Rocket-Engine Test Stand in a Calculus Course

Mathematics Teacher ◽

10.5951/mt.95.7.0516 ◽

2002 ◽

Vol 95 (7) ◽

pp. 516-519

Author(s):

Mike Weiss ◽

Brian Dodge ◽

Kate Harden ◽

Amy Hempstead ◽

Jeff Lloyd ◽

...

Keyword(s):

High School ◽

Advanced Placement ◽

Rocket Engine ◽

Test Stand ◽

Engine Test ◽

Approximation Techniques ◽

Average Value ◽

Riemann Sum ◽

Calculus Students ◽

Model Rocket Engine

Advanced Placement calculus students from Yarmouth High School, located in Yarmouth, Maine, built a model rocket-engine test stand in May 2000. This project was used to reinforce calculus concepts. In addition, it furnished data for a future freshman-science rocketry project. Students used the concepts of the average value of a function, along with Riemann-sum approximation techniques and spreadsheet skills to determine the average thrust of a model rocket engine.

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Research of High Precision DC Constant Current Source

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.340.933 ◽

2013 ◽

Vol 340 ◽

pp. 933-936

Author(s):

Dan Su ◽

Zhi Hong Zhang ◽

Jin Ping Zhao

Keyword(s):

High Precision ◽

Rocket Engine ◽

Current Source ◽

Engine Performance ◽

Performance Testing ◽

Constant Current ◽

Output Current ◽

Constant Current Source ◽

New Type ◽

Model Rocket Engine

In this paper, we designed a new type of high precision 1 μA constant current source after deeply studying the high precision precise dc constant current source. Compared with the traditional constant current source, in this paper we adopted complex amplifier added with floating power supply outside to design high precision dc constant current source which is for China's space use , its output current is 1 μA, resolution is 0.1 nA, accuracy is 0.5. This high precise dc constant current source is mainly used for new model rocket engine performance testing in aerospace, but also can be widely applied in different fields in need of precision measurement.

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