Hiki ke hoʻololi ʻia nā mea hoʻoheheʻe uila uila i ka ikaika damping e kahi solenoid valve (a i ʻole magnetorheological fluid, etc.) e like me ka hōʻailona kaʻa. ʻO kekahi o nā mea haʻalulu uila he hoʻokuʻu ʻia ka ea, a ʻo kekahi he hui coil spring strut.