道面单向约束作用对飞机振动响应的影响
凌道盛,盛文军,黄博,赵云

Influence of pavement unidirectional constraint on aircraft vibration response
Dao-sheng LING,Wen-jun SHENG,Bo HUANG,Yun ZHAO
表 2 不同机轮−道面接触形式下KiFiX中相关元素组合
Tab.2 Combination of related elements in Ki and FiX under different contact forms between wheel and pavement
工况 机轮与道面接触形式 K(2,2) K(3,3) K(4,4) F(2,1) F(3,1) F(4,1)
1 三组起落架机轮全着地 K11+K12 K21+K22 K31+K32 −m1g+K12h1(x) −m2g+K22h2(x) m3g+K32h3(x)
2 前起落架机轮着地,两主起落架机轮离地 K11+K12 K21 K31 −m1g+K12h1(x) −m2g −m3g
3 前起落架机轮离地,主起落架机轮着地 K11 K21+K22 K31+K32 −m1g −m2g+K22h2(x) m3g+K32h3(x)
4 前起落架和右主起落架机轮着地,左主起落架机轮离地 K11+K12 K21+K22 K31 −m1g+K12h1(x) −m2g+K22h2(x) −m3g
5 前起落架和左主起落架机轮着地,右主起落架机轮离地 K11+K12 K21 K31+K32 −m1g+K12h1(x) −m2g m3g+K32h3(x)
6 三组起落架机轮全离地 K11 K21 K31 −m1g −m2g −m3g