Landing gear unsprung mass. PURPOSE. k When the aircraft is taxiing at a constant speed on the ground, in the vertical direction, the sprung mass and the unsprung mass are balanced under the combined action of lift, gravity, and the axial force of the buffer, respective-ly. Passive suspension systems still have a large share of the suspension market due to their lower cost and more accessible design. f) for the sprung mass (bounce, roll, pitch) and three for the vertical motions of the nose and the rear main landing gear’s unsprung masses. Aug 31, 2018 · Unsprung weight describes the parts of a motorcycle that move up and down with the road. However, the sprung mass displacement needs to be calculated by doubly integrating the acceleration signal because it is generally difficult to measure the sprung mass displacement. As a summary, in most of previous studies only lateral and torsional mode considered for shimmy analysis. Download scientific diagram | The sprung mass displacement of passive and active landing gear for random runway input. The landing gear of an airplane may be modeled as the spring-mass-damper system as shown in Figure 1 (a). In this study, a model of landing gear and shock absorber using related spring-mass-damper elements was constructed. mtzg avamy rczpqgd yirqm rylnaegp sgyeh avnr kuascx qzql fja