We’re rewarding the question askers & reputations are being recalculated! Read more.

Questions tagged [engineering]

Questions regarding the design or process of design of a spacecraft.

10 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
0answers
55 views

Are ferrofluidic seals used in spaceflight? Main applications? Human-rated?

Comments below this answer have inspired this quesiton. Wikipedia's Ferrofluidic seal sez: Ferrofluid-sealed feedthroughs routinely operate in environments including ultra-high vacuum (below 10⁻⁸ ...
4
votes
0answers
160 views

Does Rocket Lab's Rutherford have margin for uprating with improved battery technology?

We've seen with SpaceX's Merlin engines that the initial design had a lot of headroom for subsequent increases in chamber pressure and mass flow rate (from supercooling and densification) to gain ...
3
votes
0answers
85 views

Maturity of interplanetary rockets technology with known fuel supply is close?

Considerably, the scale of current jet propulsion rocket technology to leave Earth is closely connected to the target delivery mass, mission goal and the required fuel quantity to lift and deliver ...
3
votes
0answers
118 views

What is currently known as the thinnest combination of material to hold 1 atm in space?

What is currently known as the thinnest combination of material to hold 1 atm in space? Note: must define what the composing materials are.
3
votes
0answers
247 views

Could multimode (polymer) optical fiber Gigabit Ethernet be a better choice than WiFi inside future satellites?

In this answer the recent question Are and should satellites use wireless communication internally, rather than cables? it is stated that: This is actually an open research area and despite ...
2
votes
0answers
92 views

Career in Planetary Science with an Engineering background

I am passionate in achieving a career in Planetary Science. I have a bachelor's degree in mechanical engineering background with an average academic record. I want to pursue a career in Planetary ...
2
votes
0answers
70 views

Is it undesirable for LOx to splash on the walls of combustion chamber?

Typically, there are annular ports on the injector plate to introduce fuel to cool the combustion chamber. Why is LOx not used for cooling despite it being extremely cold? Given there will be a lot ...
1
vote
0answers
112 views

Parasite Satellite

With computers and technology becoming lighter and is also effected by drag. Could a small satellite that lacks certain systems be designed to utilize an existing satellites systems like radio, solar ...
1
vote
0answers
116 views

How to compute angular velocity of fluid ring for passive control?

Excuse me, friends. In paper , for passive control with eq.4, how to compute beta? beta is angular velocity of fluid in fluid. the satellite has initial angular velocity, but with filled fluid ring we ...
1
vote
0answers
220 views

How to optimize a Pulse-Width Pulse-Frequency (PWPF) modulated attitude control system?

Is the optimization process for fuel used, response time, thruster activity different? How is the trade-off between these done? Also, is there a better controller for on-off RCS thruster system?