Journal of Technology in Aerospace Engineering

Journal of Technology in Aerospace Engineering

Vibration Absorber System Design to Dampen Vibrations on the Block of Power Supply of Satellite Launch Vehicle

Document Type : Research Article

Authors
Keramat Malekzadeh Fard 1
Alireza Shahi 1
Alireza Pourmoayed 2
1 Faculty of Aerospace, Malek Ashtar University of Technology, Tehran, Iran
2 Faculty of Mechanical Engineering, University of Khatamul-Anbiya Air Defense, Tehran, Iran
10.22034/jtae.2026.10.1.1
Abstract
During flight missions, power supply blocks are subjected to various dynamic environments, including sinusoidal and step input vibrations, which are the primary causes of structural degradation and reduced performance of satellite launch vehicles. Among the components of these vehicles, electronic subsystems and power supply blocks are particularly susceptible to vibration-induced failures. This study investigates, for the first time, the application of semi-active absorbers in combination with a novel damping mechanism to reduce vibrations affecting the power supply block systems of satellite launch vehicles. To facilitate a comprehensive analysis, the motion equation of the power supply block was formulated in state-space representation. Based on the system's dynamic model, vibration responses were analyzed, and mitigation strategies were assessed. The proposed system incorporates a passive absorber and, ultimately, a hybrid configuration combining active and passive elements using elastomeric bases to suppress vibrations encountered during pre-launch, launch, and flight phases. Results demonstrate that the novel damper system improves efficiency by 18% compared to passive absorbers and by 16% relative to active absorbers, representing a substantial performance enhancement.
Keywords
Satellite
Power supply block
Vibration absorber
Isolator
Semi-active
Subjects
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  • Receive Date 21 February 2025
  • Revise Date 05 August 2025
  • Accept Date 09 August 2025
  • First Publish Date 27 August 2025