Project Mirai (Hatsunese Space Station)

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Based on these definitions:

For me, the pressurized volume is the entire volume in which we have atmospheric pressure. The habitable volume are the empty spaces between racks. This is my approach with starlab.

Here are the approximate values:

Module|Pressurized|Habitable
Core|170 m ³ |50 m ³
Airlock|30 m ³ |15 m ³
Akarui|135 m ³ |40 m ³
Azayaka|135 m ³ |40 m ³
Kotai|135 m ³ |40 m ³
Amai|135 m ³ |40 m ³
Kurai|50 m ³ |15 m ³
Yawarakai|305 m ³ |265 m ³ Total | 1095 m³ | 505 m³

 

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2008 March 9
05:39 (Hatsunia Standard Time)

 

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UTV (Unmanned Transfer Vehicle) "Hikyaku"

(based on the HTV-X redesign)

 

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An early concept for Space Station Mirai would have resembled the configuration of this station I made for KSP: one side of the core module would have a solar array module docked; the other side would have a node module, with four modules docked to it, like Mir. Everything would have used docking ports (not berthing ports).

After having been educated on the merits of berthing ports (seriously, why can't docking ports have wide passageways?), I envisioned a station that used a combination of berthing and docking ports, because there wasn't a robotic arm add-on with "end-to-end" movement yet. It would have resembled this station by Tex.

Evolution of designs that were based on aesthetics (i.e. the station somewhat resembling 未来) while trying to be practical at the same time. The first one is the one I mentioned at the top of this post.

 

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UTV service module/tug:

This JAXA paper from 2008 showed various possible derivatives of the HTV, including spacecraft bus platforms. It also mentioned that the dry mass of this new bus system (avionics and propulsion modules) would be 2 tonnes.

 

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---------- Post added 11-27-15 at 12:22 PM ---------- Previous post was 11-26-15 at 08:05 PM ----------

Alternative way of resupplying Space Station Mirai:

「軌道エレベーター」 by 一　五明 (pixiv)

 

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2009 June 5 - This is how the Remote Manipulator System was delivered to the station. Prior to this, RCV01, 02, and 03 had visited the station on separate occasions, staying for 13 days each for a total of 39 days. The first long-duration crew arrives in a month.

The real SSRMS was brought up in [ame="http://orbithangar.com/searchid.php?ID=6454"]a more compact form[/ame], but had to be unfolded with EVAs. (The Canadarm add-on shown here doesn't fold up, too)

---------- Post added 11-30-15 at 09:57 AM ---------- Previous post was 11-29-15 at 10:01 PM ----------

Sometimes I feel like Mirai should've had a predecessor in the late 90s/early 2000s. Like Tiangong or Salyut.

During Japan's economic bubble (Hatsunia is basically like Japan if that economic prosperity never really ended), they were planning to build their own space station by 2010, but only after they had gotten the experience of building what is now known as Kibo. (also, see this)

Even the fictional Starlab (and the formerly canon Gaia space station) of the Agenzia Spaziale Virtuale Italiana had its roots in Italy's manufacture of the MPLMs, the Tranquility, Harmony, and Columbus modules, as well as the Cupola.

But then I'd have to make a capsule predecessor to the RCV, too. A major retcon. And after I'm done with this station, I'm instead going to focus on what's ahead for HASDA.

Or maybe they had gotten the experience by manufacturing most of the Spacelabs as well as some MPLMs for the Shuttle in their universe?

 

[Donamy]

2009 June 5 - This is how the Remote Manipulator System was delivered to the station. Prior to this, RCV01, 02, and 03 had visited the station on separate occasions, staying for 13 days each for a total of 39 days. The first long-duration crew arrives in a month.

The real SSRMS was brought up in a more compact form, but had to be unfolded with EVAs. (The Canadarm add-on shown here doesn't fold up, too)

---------- Post added 11-30-15 at 09:57 AM ---------- Previous post was 11-29-15 at 10:01 PM ----------

Sometimes I feel like Mirai should've had a predecessor in the late 90s/early 2000s. Like Tiangong or Salyut.

During Japan's economic bubble (Hatsunia is basically like Japan if that economic prosperity never really ended), they were planning to build their own space station by 2010, but only after they had gotten the experience of building what is now known as Kibo. (also, see this)

Even the fictional Starlab (and the formerly canon Gaia space station) of the Agenzia Spaziale Virtuale Italiana had its roots in Italy's manufacture of the MPLMs, the Tranquility, Harmony, and Columbus modules, as well as the Cupola.

But then I'd have to make a capsule predecessor to the RCV, too. A major retcon. And after I'm done with this station, I'm instead going to focus on what's ahead for HASDA.

Or maybe they had gotten the experience by manufacturing most of the Spacelabs as well as some MPLMs for the Shuttle in their universe?

Actually, it does fold.

 

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Actually, it does fold.

Sorry, but I couldn't see any commands relating to that in the documentation. On what page is it?

---------- Post added at 11:15 PM ---------- Previous post was at 01:49 PM ----------

It also seems that:

- parent attachments are the ones that the arm can only "inchworm" to (for Power/Data)
- child attachments are the ones that the arm can only grapple for berthing operations

but you can't get both to work with the same set of coordinates (at least, with Spacecraft3/genericvessel). So I'll have to make separate grapple fixtures for some modules.

 

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(based on the H-II Transfer Vehicle logo on the H-IIB)

 

[turtle91]

Sorry, but I couldn't see any commands relating to that in the documentation. On what page is it?

---------- Post added at 11:15 PM ---------- Previous post was at 01:49 PM ----------

I found the answer in the source-code of SSRMS:

The elbow needs to be at -180 degrees, than you can hit "k" to fold/unfold the arm.
I have tested this, I set all joints to "0" except the EP (elbow) joint to "-180", and folding via "k" worked.
:thumbup:

 

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The UTV was berthed and kept there until the first node module (Akarui) was ready to be launched. The RMS had been relocated prior to the arrival of RCV02 in preparation for the contingency airlock module.

---------- Post added 12-22-15 at 03:26 AM ---------- Previous post was 12-21-15 at 07:59 PM ----------

The contingency airlock module being berthed to the station (with some difficulty):

(I also get "IK errors" [which I presume stands for Inverse Kinematics] with the arm sometimes, when I try to use the arrow keys + insert/delete.)

(Hint: you don't need to get the berthing ports lined up exactly. Just close enough, then press Ctrl+G for the robotic arm to release, and they will snap into position)

 

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I like how the end effector of the Canadarm add-on can be moved (translated).

But I get these "IK errors" far too often.

edit: I guess I'll have to move my flight-releasable grapple fixture. It was too close.

---------- Post added at 03:04 AM ---------- Previous post was at 01:09 AM ----------

Akarui, the first "Append" module, was launched on 2010 April 30, and was berthed to the station on May 2.

 

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The translational motion feature would be incredibly user friendly (as opposed to trying to get the end effector to the desired location by manually rotating each individual joint), except that I keep getting this "IK error" nonsense in which the end effector refuses to translate at all, and it's driving me insane. The arm is not even at an illogical position.

---------- Post added at 02:53 PM ---------- Previous post was at 04:08 AM ----------

It works much better when the circled joint has been rotated 180 degrees.

 

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2010 July 30 - the S0 truss segment was berthed to the station.

 

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I forgot to transfer some updated .ini files into my flash drive before flying back to my university (in Alabama) from California, and I don't want to go over doing them again (for example, the RCS exhaust definitions). So, this project will be on hiatus for a few months, and I will work on something else soon. Sorry everyone.

 

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The missions aren't complete, but I wanted to share this:

[ame="http://www.orbithangar.com/searchid.php?ID=6972"]http://www.orbithangar.com/searchid.php?ID=6972[/ame]