Structural  ICD Overview

PWR ICD

Note that Power Submodule currently has a NX software bug preventing the creation of new drawings.

The small cut through the entire working volume allows for a pass-through for cables from the interface board in the Power module up into to the ADCS module. The second "chunk" that has been removed from the Power Module allows for one of the Torque rods to extend slightly into the Power Module. 

In addition to the ICD,  the parts and layout of the module has also been created.

PCU Board

Battery Saddle

The Batteries will be mounted directly to an aluminum milled part referred to as the "battery saddle."

PWR Module Upper Half Shell

The final major component for the PWR module is the shell modules. The structural components use two of the 1/2U shells defined above, with one of them modified to accommodate the pass through for the Z torque rod. The dimensions for that cut are shown here.

PWR Module Separation Switch Assembly

Two Separation switch assemblies are used in the lower half U-shell of the power model. the separation switches contain 3 electrical switches that determine whether the pins are still compressed in the Nanoracks deployer. The 4 pins collectively provide 9N of force. 

PWR Module RBF Pin

A single RBF pin is used to compress an electrical switch to ensure the system is off until placed in the Nanoracks container.  Prior to launch the pin shall be removed.

PWR Module RBF Bracket

ADCS ICD

ADCS Working Volume

The ADCS Module for the MB-SAT uses one half shell and has a prescribed working volume laid out by the following drawing:

As with the Power module, the small cut through the entire working volume allows for a pass-through for connections from the Power module up through ADCS and into the Payload Module. 

The second "chunk" that has been removed from the ADCS working volumes are for the torque rods.  these torque rods will be mounted directly to the board.

ADCS Module Assembly

The internals for the ADCS module are shown in the following assembly drawing.

ADCS Upper Shell

A major component for the ADCS module is the shell module. The structural components uses one 1/2U shells defined above, modified to accommodate the Z torque rod. The dimensions are shown here.

COMS ICD

COMS Module Working Volume

The COMS Module also houses the CDH board and has a working volume as follows:

While the COMS module is made from the 1/2U shell, the height of the module is noticably less than  that of the ADCS module. The additional space has been reserved for the Antennas and deployment systems. 

COMS Module Assembly

COMS, CDH and the Antenna/deployment system are assembled into the module as shown.

COMS-CDH Upper Shell

The following edits are made to a 1/2U Shell to accommodate the COMS module. 

Both the CDH and COMS interface boards have the same surface areas. CDH has a more restricted height on components, however the CDH components do not have significant heights that are cause for concern with the height restriction. The COMS CCA is allowed a greater height for the transceivers.  

COMS CCA

CDH CCA

The additional 5.5 mm limit around the corner and center mounting points, ensures that no components will be placed where the mounting standoffs or bolt heads will be for the mounting hardware for the two boards.

Solar Panel ICD

Solar Panel Working Volume

In order for the Solar Panel Deployment System to fit within the deployer it has the maximum working volume defined below:

Solar Panel Full Assembly

Solar Panel Burn System Assembly

Corner Rail ICD