نوع مقاله : علمی پژوهشی
عنوان مقاله English
نویسندگان English
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.
کلیدواژهها English