舰船科学技术
艦船科學技術
함선과학기술
SHIP SCIENCE AND TECHNOLOGY
2014年
1期
27-30
,共4页
贲亮亮%魏小辉%刘成龙%浦志明%尹乔之
賁亮亮%魏小輝%劉成龍%浦誌明%尹喬之
분량량%위소휘%류성룡%포지명%윤교지
航空母舰%舰载机%进舰轨迹%甲板风%流场仿真
航空母艦%艦載機%進艦軌跡%甲闆風%流場倣真
항공모함%함재궤%진함궤적%갑판풍%류장방진
carriers%carrier-based aircraft%landing track%deck wind%flow field simulation
舰载机着舰轨迹上的流场特性对舰载机的安全准确着舰具有重要影响。本文以“尼米兹”级航空母舰为研究对象,建立简化三维数模,并对其舰载机进舰轨迹进行分析。基于Ansys软件,采用结构化网格对整个流场分析区域进行网格划分,并进行流场仿真。分析不同风速和风向角下舰载机进舰轨迹上的流场特性,分析表明:舰载机进舰轨迹上的垂向风影响随着甲板风和风向角的增加而增大;侧向风随着甲板风的增加而震荡加剧,且风向角越大,侧向风峰值也随之增加。
艦載機著艦軌跡上的流場特性對艦載機的安全準確著艦具有重要影響。本文以“尼米玆”級航空母艦為研究對象,建立簡化三維數模,併對其艦載機進艦軌跡進行分析。基于Ansys軟件,採用結構化網格對整箇流場分析區域進行網格劃分,併進行流場倣真。分析不同風速和風嚮角下艦載機進艦軌跡上的流場特性,分析錶明:艦載機進艦軌跡上的垂嚮風影響隨著甲闆風和風嚮角的增加而增大;側嚮風隨著甲闆風的增加而震盪加劇,且風嚮角越大,側嚮風峰值也隨之增加。
함재궤착함궤적상적류장특성대함재궤적안전준학착함구유중요영향。본문이“니미자”급항공모함위연구대상,건립간화삼유수모,병대기함재궤진함궤적진행분석。기우Ansys연건,채용결구화망격대정개류장분석구역진행망격화분,병진행류장방진。분석불동풍속화풍향각하함재궤진함궤적상적류장특성,분석표명:함재궤진함궤적상적수향풍영향수착갑판풍화풍향각적증가이증대;측향풍수착갑판풍적증가이진탕가극,차풍향각월대,측향풍봉치야수지증가。
The flow field characteristics of the landing trajectory of carrier-based aircraft have great impact on the accurate and secure landing on the aircraft carrier. A simplified mathematical model is established for the Nimitz-class carriers considering its six-degree-of-freedom movement. Based on the model above, the landing trajectory of carrier-based aircraft is discussed. The entire flow field that needs analysis is meshed through the structured grid in Ansys with simulation analysis. The flow field characteristics of the landing trajectory of carrier-based aircraft are analyzed with different wind speed and direction, which indicate that the increase of the deck wind and its angle causes the increase of influence of the vertical wind;the stronger the deck wind and its angle is, the stronger shock and higher peak of the lateral wind is.