道面单向约束作用对飞机振动响应的影响
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凌道盛,盛文军,黄博,赵云
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Influence of pavement unidirectional constraint on aircraft vibration response
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Dao-sheng LING,Wen-jun SHENG,Bo HUANG,Yun ZHAO
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表 2 不同机轮−道面接触形式下Ki与FiX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 |
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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 |
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