SpaceTech 2026 Lightning Talks – Carol Klingler

Why It Matters

Rethinking damping as a primary design parameter enables lighter, more agile space telescopes, boosting data quality and mission speed for critical exoplanet and habitability studies.

Key Takeaways

• Space telescopes inherit ground‑based stiffness designs despite zero gravity.
• Increasing damping can reduce mass while improving vibration control.
• Optimal stiffness‑to‑damping ratio yields ~4,000 kg minimum mass solution.
• Structural impedance matching cuts resonant peaks across disturbance frequencies.
• Higher damping accelerates slew, settle times, and launch load mitigation.

Summary

Carol Klingler, a NASA Pathways fellow and graduate student, presented research urging a rethink of space‑telescope structural design. She highlighted that many current instruments, such as the James Webb Space Telescope, retain ground‑based stiffness paradigms even though micro‑gravity eliminates the need for high rigidity.

Using a simple spring‑mass‑damper model, Klingler showed that vibration variance depends on the product of stiffness (K) and damping (C). While increasing K improves performance, adding C can achieve the same vibration reduction with far less mass. Her analysis identified a minimum‑mass configuration around 4,000 kg at roughly 33 % damping—far higher than the sub‑percent damping typical of existing space telescopes.

She illustrated the potential of structural impedance matching, an electrical‑engineering concept that absorbs rather than reflects vibrations. Frequency‑response curves demonstrated that moving from 0.25 % to 10 % damping, and especially applying impedance‑matched designs, dramatically flattens resonant peaks. Beyond mass savings, higher damping shortens slew and settle times and eases launch‑load stresses.

Adopting damping‑centric designs could make upcoming missions—like the Habitable Worlds Observatory—lighter, faster, and more scientifically productive, accelerating the search for extraterrestrial life.

Original Description

Carol Klingler, SM student