ResearchPaper Space subsystems design: (navigation, control, structure and…)
Active Vibration Control of a Maneuvering Flexible Spacecraft using Hybrid Actuators: A Lyapunov-Based Control Approach

Milad َAzimi; Samad Moradi

Volume 15, Issue 2 , June 2022, Pages 1-14

  This paper presents a study concerning active vibration control of a smart flexible spacecraft during attitude maneuver using thrusters and reaction wheels (RW) in combination and piezoelectric (PZT) sensor/actuator patches. The large-angle maneuver and residual vibration of the spacecraft are controlled ...  Read More

ResearchPaper Space subsystems design: (navigation, control, structure and…)
کنترل وضعیت سه محوره یک ماهواره با استفاده از روش پارامتر متغیر

Mohammad Navabi; Fereshte Malekpour

Volume 15, Issue 2 , June 2022

  This article introduces a parameter estimation method from continuous-time models for a variable parameter system. In the variable parameter linear method, which is used to express systems with time-varying state-space matrices, the stability and performance of the feedback system are guaranteed, and ...  Read More

ResearchPaper communications
Extensive Regional Telecommunications Coverage in Emergency Condition using Tethered-Balloon Equipped with Antenna Pointing Mechanism – Part 1: Kinematic and Dynamic Modeling

Mohammad Fathi; Javad Ranjbar

Volume 15, Issue 2 , June 2022, Pages 27-42

  In emergency situations, where there is no possibility of using terrestrial-based or space-based telecommunication platforms or when there is a need for providing telecommunication services in remote, rural or hilly areas which are faced with lacking telecommunication infrastructures, typically using ...  Read More

ResearchPaper Space systems design (spacecraft, satellites, space stations and their equipment)
3-dimensional Direct Simulation Monte Carlo Simulation of Thruster Plumes

Hamed Alisadesghi; Azade Khadivi; Ehsan Zabihian

Volume 15, Issue 2 , June 2022, Pages 43-59

  The interaction of thruster plumes with satellite components can have undesirable effects, such as disturbance force/torque, thermal loading, and species deposition in the surfaces. The purpose of this paper is to use the Direct Simulation Monte Carlo (DSMC) method to analyze the 3D plume impingement ...  Read More

ResearchPaper investigating space radiation
Experimental study of the effect of using space sandwich structures for protection against space radiation

Majid Mokhtari; Hamideh Daneshvar; Morteza Bahmani nejad; Shahryar Malekie; Armin Mosayebi,; Amir Torabpoor-Isfahani,; Iman Aryanian

Volume 15, Issue 2 , June 2022, Pages 61-71

  Sandwich panels are used in various industries due to their high special strength. It is used in ultra-light aerospace structures. In this paper the protective effect of sandwich structures used in ultralight space structures against gamma rays is investigated. Eight structures of the most widely used ...  Read More

AnalyticalPaper Space systems design (spacecraft, satellites, space stations and their equipment)
experimental study of dynamic stability for a entry capsule in supersonic flow

Mohsen Sargolzaie; Hamid Fazeli; Mohammadreza Soltani

Volume 15, Issue 2 , June 2022, Pages 73-83

  Due to the lack of existence of control surfaces in entry capsules, the subject of static and dynamic stability is always important. In this paper, these coefficients are investigated experimentally for the case of forced oscillation at supersonic flow. In this experimental study, the effects of freestream ...  Read More

ResearchPaper physiology and space medicine (astrobiology)
Effect of Simulated microgravity condition on cells proliferation and myostatin gene expression in differentiated skeletal muscle cells (C2C12)

Narjes Rhmanian; Azadeh Hekmat; Zahra Hajebrahimi

Volume 15, Issue 2 , June 2022, Pages 85-97

  Muscle atrophy is one of the problems that astronauts face after returning to earth. Myostatin is a known negative regulator of muscle growth. This study aimed to investigate the effects of simulated microgravity condition on mouse myotube cells (C2C12) growth and the myostatin gene expression. The morphological ...  Read More

ResearchPaper commerce, management, and apace law
Collision Prediction of Spacecraft for Space Traffic Management

Hamid Kazemi; Samaneh Elahian

Volume 15, Issue 2 , June 2022, Pages 99-109

  In this article collision probability method is used to satellite collision risk analysis. Among different methods introduced for determining collision probability, Patera's (2005) and Chan methods are chosen to define Noor satellite collision to the other space objects. According to criteria described ...  Read More

ResearchPaper Space subsystems design: (navigation, control, structure and…)
Thermal Effects of the Space Environment on the Radiation Characteristics of a Reflector Antenna in LEO Spacecrafts

Fatemeh Asdaghpour; Fatemeh Sadeghikia; Mohammad Ali Farsi

Volume 15, Issue 2 , June 2022, Pages 111-122

  Antennas, which are usually installed on the outer shell of these systems, are therefore always exposed to the thermal fluctuations of the space environment. Thermal fluctuations cause the antenna surfaces to expand, contract and distort and can cause the antenna to malfunction. In this paper, the effects ...  Read More