unsprung

adj.

（车、椅等）不支承在弹簧上的，未装弹簧的；

unsprung mass非簧载质量，非跳动质量；簧下质量

Univentricular atrioventricular connection: The single ventricle trap unsprung
Influence of unsprung weight on vehicle ride quality
Disc motor with reduced unsprung mass for direct EV wheel drive
Disc motor with reduced unsprung mass for direct EV wheel drive
Optimal design of a composite leaf spring using genetic algorithms
Modeling of Electromagnetic Damper for Automobile Suspension
Optimal active suspension structures for quarter-car vehicle models
Hrovat, D.: Optimal active suspension structures for quarter car vehicle models. Automatica 26(5), 845-860
Preview Estimation and Control for (Semi-) Active Suspensions
Control of a low frequency active suspension