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Author Topic: Mach Effect MEGA Thruster  (Read 1822 times)

Offline Flyaway

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Offline Flyaway

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Re: Mach Effect MEGA Thruster
« Reply #1 on: March 30, 2018, 03:31:05 pm »
Phase II NIAC Grant Selection for SSI.

Mach Effect for In Space Propulsion: Interstellar Mission

We propose to study the implementation of an innovative thrust producing technology for use in NASA missions involving in space main propulsion. Mach Effect Gravity Assist (MEGA) drive propulsion is based on peer-reviewed, technically credible physics. Mach effects are transient variations in the rest masses of objects that simultaneously experience accelerations and internal energy changes. They are predicted by standard physics where Mach's principle applies as discussed in peer- reviewed papers spanning 20 years and a recent book, Making Starships and Stargates: the Science of Interstellar Transport and Absurdly Benign Wormholes published in 2013 by Springer-Verlag.

In Phase I we achieved the following:

Implemented chirped pulses to reduce heating and provide a longer duration thrust capability.
Designed and developed circuits to allow for 1f and 2f frequency impedance matched AC input to the device, to improve efficiency of the MEGA drive.
Developed a better theoretical model for the device and conceptualized a probe for an interstellar mission to Proxima b. In Phase II, the next critical step in the development of these thrusters is to test new designs with higher frequency to increase the output thrust.
We have been using Steiner Martin's SM-111 PZT for our devices. We also expect to test new materials, for example APC-840 PZT, and PIN-PMN-PT, which we have procured but not had the opportunity to yet evaluate. It would also be advantageous to operate multiple devices to determine the thrust scales in arrays of 2 or more devices. We view the independent verification of the MEGA Drive effects by experts in the vacuum testing of micropropulsion as a crucial step in Phase II. We envision a collaboration with several entities (from academia and industry) to enable the testing of new devices. Mach effects have the revolutionary capability to produce thrust without the ejection of propellant, eliminating the need to carry propellant as required with most other propulsion systems. Ultimately, once proven in flight, these thrusters could be used for primary mission propulsion, opening up the solar system and making interstellar missions a reality. This aerospace concept is an exciting TRL 1 technology, ready to take the next step to providing propellantless propulsion, first in incremental NASA smallsat missions, but later enabling revolutionary new deep space exploratory capabilities beyond anything achievable by conventional chemical, nuclear or electric propulsion systems.

https://www.nasa.gov/directorates/spacetech/niac/2018_Phase_I_Phase_II/Mach_Effect_for_In_Space_Propulsion_Interstellar_Mission
« Last Edit: March 30, 2018, 03:36:45 pm by Flyaway »

Offline Flyaway

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Re: Mach Effect MEGA Thruster
« Reply #2 on: April 01, 2018, 07:42:06 am »
Lengthy article looking at the Mach Effect thruster and the latest news. Unlike EM drives you donít have to invent new physics to explain their working.

Mach Effect Propellantless drive gets NIAC phase 2 and progress towards great interstellar propulsion

https://www.nextbigfuture.com/2018/04/mach-effect-propellantless-drive-gets-niac-phase-2-and-progress-to-great-interstellar-propulsion.html
« Last Edit: April 01, 2018, 07:47:11 am by Flyaway »

Offline Flyaway

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Re: Mach Effect MEGA Thruster
« Reply #3 on: May 16, 2018, 11:56:17 pm »
New pre-print paper.

The SpaceDrive Project - First Results on EMDrive and Mach-Effect Thrusters

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Propellantless propulsion is believed to be the best option for interstellar travel. However, photon rockets or solar sails have thrusts so low that maybe only nano-scaled spacecraft may reach the next star within our lifetime using very high-power laser beams. Following into the footsteps of earlier breakthrough propulsion programs, we are investigating different concepts based on non-classical/revolutionary propulsion ideas that claim to be at least an order of magnitude more efficient in producing thrust compared to photon rockets. Our intention is to develop an excellent research infrastructure to test new ideas and measure thrusts and/or artefacts with high confidence to determine if a concept works and if it does how to scale it up. At present, we are focusing on two possible revolutionary concepts: The EMDrive and the Mach-Effect Thruster. The first concept uses microwaves in a truncated cone-shaped cavity that is claimed to produce thrust. Although it is not clear on which theoretical basis this can work, several experimental tests have been reported in the literature, which warrants a closer examination. The second concept is believed to generate mass fluctuations in a piezo-crystal stack that creates non-zero time-averaged thrusts. Here we are reporting first results of our improved thrust balance as well as EMDrive and Mach-Effect thruster models. Special attention is given to the investigation and identification of error sources that cause false thrust signals. Our results show that the magnetic interaction from not sufficiently shielded cables or thrusters are a major factor that needs to be taken into account for proper ĶN thrust measurements for these type of devices.

The SpaceDrive Project - First Results on... (PDF Download Available). Available from: https://www.researchgate.net/publication/325177082_The_SpaceDrive_Project_-_First_Results_on_EMDrive_and_Mach-Effect_Thrusters

Offline Graham1973

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Re: Mach Effect MEGA Thruster
« Reply #4 on: May 22, 2018, 03:11:11 pm »
Article on Ars-Technica, which also covers the EM-Drive.  Apologies for the sarcasm.

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It was bound to happen eventually. A group of researchers that may actually be competent and well-funded is investigating alternative thrust concepts. This includes our favorite, the WTF-thruster EM-drive, as well as something called a Mach-Effect thruster. The results, presented at Space Propulsion 2018, are pretty much as expected: a big fat meh.

https://arstechnica.com/science/2018/05/nasas-em-drive-is-a-magnetic-wtf-thruster/?comments=1

Offline Flyaway

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Re: Mach Effect MEGA Thruster
« Reply #5 on: June 01, 2018, 01:27:51 pm »
At least one of the authors of the paper has complained of poor media reporting on it. I suspect he was thinking of articles like the one linked to above.

Please see link below for that and more.

https://forum.nasaspaceflight.com/index.php?PHPSESSID=hhr7b68opu147p30o2qmncbm87;topic=42978.msg1824978#msg1824978

Offline Flyaway

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Re: Mach Effect MEGA Thruster
« Reply #6 on: June 18, 2018, 09:35:21 am »
Marc Millis on Mach Effect Thruster, EmDrive Tests

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by PAUL GILSTER on JUNE 18, 2018
Marc Millis spent the summer of 2017 at the Technische Universitšt Dresden, where he taught a class called Introduction to Interstellar Flight and Propulsion Physics, a course he would also teach at Purdue University last November. The former head of NASAís Breakthrough Propulsion Physics project and founding architect of the Tau Zero Foundation, Marc participated in the SpaceDrive project run by Martin Tajmar in Dresden, an effort that has been in the news with its laboratory testing of two controversial propulsion concepts: The Mach Effect Thruster and the EmDrive. Marcís review comments on modeling for the former were almost as long as Tajmarís draft paper. Described below, the SpaceDrive project is a wider effort that includes more than these two areas ó neither the EmD or MET thruster had reached active test phase during the summer he was there ó but the ongoing work on both occupies Millis in the essay that follows.

My bolding.

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You may have noticed a renewed burst of articles about the EmDrive. What prompted this round of coverage was an interim report, part of the progress on Martin Tajmarís ĎSpaceDriveí project to carefully test such claims. Tajmarís conference paper [citation below] is one of the early steps to check for false-positives. I expect more papers to follow, each progressing to other possibilities. It might take a year or so more before irrefutable results are in. Until then, treat the press stories about certain conclusions as highly suspect.

https://www.centauri-dreams.org/2018/06/18/marc-millis-on-mach-effect-thruster-emdrive-tests/

Notice that the Mach Effect thruster is looking to be a very different beast than the EM Drive. I imagine this is a attempted corrective article to some of the poor press reporting.