Opto-Mechanical Integrated Analysis of Micro-Vibration Effects on the Imaging Performance of a Precision Optical...

Area of Science:

• Optomechanics
• Optical Engineering
• Aerospace Engineering

Background:

• Reaction wheel disturbances significantly impact space optical telescope image quality.
• Existing analyses often overlook coupled optomechanical effects, limiting accuracy.
• Precision optical systems require robust methods to mitigate micro-vibrations.

Purpose of the Study:

• To investigate the influence of reaction wheel perturbations on space telescope imaging.
• To establish a comprehensive dynamic model for optical-mechanical integrated analysis.
• To determine key vibrational modes affecting line-of-sight (LOS) error.

Main Methods:

• Developed a dynamic model of a precision optical system.
• Employed an optical-mechanical integrated analysis approach.
• Validated the model with satellite micro-vibration experiments.

Main Results:

• Calculated optical telescope line-of-sight (LOS) error under reaction wheel disturbances.
• Identified key vibrational modes contributing significantly to LOS error.
• Experimental validation showed simulation-to-experiment relative errors below 10%.

Conclusions:

• The developed optomechanical framework accurately predicts LOS error, validating simulation accuracy.
• Findings provide engineering guidance for structural layout and vibration isolation in optical satellites.
• The framework is extendable to various micro-optical systems sensitive to micro-vibrations.