Installation method of tension spring of solar container mechanism

What is solar array deployment mechanism (SADM)?

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What is a solar array deployment mechanism?

Keywords; solar array deployment mechanism, satellite simulation. A space mechanism commonly consists of the mechanical parts such as gears, springs, linkages, dampers, latches, cams which are assembled and worked together to achieve its operational goal .

What are the components of a solar panel deployment mechanism?

The mechanism is composed of three main assemblies; i) hinge assembly with torsion springs responsible for the mechanism rotation, and solar panel stoppage at the end of deployment stroke, ii) latch assembly to prevent reversed solar panel motion after deployment, iii) sensor assembly to measure the deployment angle.

What is solar array deployment mechanism (SADM)?

In this study, solar array deployment mechanism (SADM), as an example of a one-shot device, is under the scope of work. Normally, solar arrays of considerable surface area are required to provide enough power for the safe payload functioning and for the computer and the communication systems.

How do SMA hinge springs work?

The SMA hinge springs are designed to open the arrays in the freefall environment in orbit and the SMAs cannot open the arrays against Earth’s gravity. Therefore, the fully assembled CubeSat’s SAs are deployment tested with the array’s gravity offloaded on its side, which results in only being able to test two SAs at one time.

Can solar panel inertia force cause SADM failure?

During analysis, solar panel mass is added as lumped mass to include solar panel inertia force. An animated simulation results are shown as three consecutive frames in the following fig. 13, using explicit dynamic analysis tool in ANSYS 19 R1. Stress results showed that the impact force can cause no failure to SADM.

How do superelastic springs work?

To ensure a good electrical path and strong structural stiffness accommodations, the superelastic springs were riveted and directly soldered to the SA panel and then attached to the radiator with screws. On the radiator end, the fasteners used to attach the superelastic springs also conduct the electricity to a copper lug.