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Design and Development of Motorised Adjustable Vertical Platform For Satellite Assembly, Integration And Test Facility

Research Title : Design and Development of Motorised Adjustable Vertical Platform For Satellite Assembly, Integration And Test Facility

Duration : 2015 - 2017

Fund : Peruntukan Dana Khas Agensi

Research Summary :

The development of a motorised adjustable vertical platform has been implemented to solve the problem as below:

  • Very heavy platform and device under test
  • Limited personnel
  • Difficult manoeuvring due to limited space
  • Floor flatness
  • Safety of personnel and device under test
  • Thermal Vacuum Chamber at an elevated height

Therefore, development of a motorised adjustable vertical platform has been propose to ensure smoothness of AIT operation without jeopardizing the safety of the satellite. The platform will also help to minimize handling risks as the adjustable platform will provide direct access with the satellite.

 

Tajuk Penyelidikan : MODELLING OF INDUCED NUCLEAR INTERACTION EFFECT ON STATIC RANDOM ACCESS MEMORY (SRAM) IN NEAR EQUATORIAL ORBIT

Tempoh : 2014 - 2016

Dana : FRGS

Ringkasan Projek Penyelidikan  : 

This research presents an analysis of the radiation environment for satellite in Near Equatorial Orbit (NEqO) using SPENVIS (Space ENVironment Information System).

Table 1: Orbital Parameters

Parameter

Value

Apogee

706.39 km

Perigee

664.65 km

Inclination

8.99°

Right. Ascension of  Ascending Node

350.85°

Argument of Perigee

22.93°

True Anomaly

337.07°

Eccentricity

0.00

 

Radiation models used are AP-8 Min model is used for trapped protons simulation, AE-8 Min model used for trapped electrons, CRÈME 96  for solar protons environment and ISO 15390 model for GCR ions flux.

Figure 1: Modelling and simulation process

 

Figure 2 : Direct ionization SEUs rates through 3 years mission (a) Unshielded Q node (b) Shielded Q node

 

Figure 3 : Virtually fabricated NR1 MOSFET, a physically-based device using Atlas

 

Figure 4 : Drain Current when Beam strike at different positions of the SRAM

The results show that, midpoint of drain is the most sensitive node for any radiation strike. Besides that, for these particular structures, intensity threshold is increasing with the increase of transistor number in the SRAM. These findings are important to design better radiation hardened electronics for space mission.

 

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