螺旋桨切边技术对改善船、机、桨匹配的影响

螺旋桨切边技术对改善船、机、桨匹配的影响 螺旋桨切边技术对改善船、机、桨匹配的影 响 (???K??????) ?024???09?. 1996??9?J JournalofSouthChinaUniversityofTechnology (NaturalScience) Vol.24No.9 September1996 ???????6?????-???W?? ?W+(?E+(???W???????? ???(??+???+???+????t?T+??????c (?????1???I?????T????) ??+???+??0?????????????6?????-???W???W+(?E+(???W???????D,???????8???n?????Z?E???.???? ?B?+??????+(?m???????????W???D??????+) ???7??+???????;????;???.?U 661.31;U661.313 ?W?K?D???D???r?=,?A???4?????p?????????????.????pg??pN??????,?Z?E???a?+???????. ?v???.??????,?E???a???4???????W??;???v???W?K???E?+???.?:????,?Z?E?4?D???.?????? ?r????,???????.?r???:?T,?????Z?E??????????????,???C?U???Z?E??????????+)?????????? ???????????????K?p?S?????u???????.??,?????????????????-???????????????????6???? ?W??????,???t?????????????v????,?????????????????f,??????pg??pN+)????,?D?n???????r ???????.?u??,?Z?E?4?D?????????(?r????,???+?W???W+(?E+(???W????????+) 1+????????6?????l???.???v?????? ???f?????????????v???????????+???f???????.???????D+)?1???????????1???????:?? ??1+????f?????? +?FIg.1Diminishingpropellerdiameter ??2+??6???????? Fig.2Thebladeshapemodification ???M???.:1995210209 ???(??,??,1941???.,??????;?Z???i?????t:?????W??+(???????.?W???W?K??????????+)?????1???I?????T?? ???W?K?l???r???r??,???v56:1041 (????1?P?E),????????????,???6?????I?????:?.?????o???l?L??????,?n?6???? ????????(????2?P?E),?????????????I??,?????:?.?????????f+)???Y???D?=?A???o?1???;?? ?????n?????D,?+???????????????6???????D???r???B????????+) 111+????????????6???????+?? ???????????6???l?T?U?????.?????v,?n?i???????[????+(?:?.?????4???:???????o???? ??????+)?D???7(1)?=?e???????????????????f+)???????????????????????+???r???f: ?N=75 ?D D ,(1) ?Γ0=0.4 ?D D ,(2) ?v v (?)=0.62??10 -3 +i ?D D (?)+U 3 +0.87??10 -2 ,(3) +?+??f?=+?D?E??????????(m);?D?E???????????6????(m);?N?E?????.?W????;v?E?: ?.(kn);?v?E?:?.?W????(kn);Γ0?E?????????[????;?Γ0?E?????????[?????W?? ??+) 112+????????????6???????+?? ?????6???????T?A?-?????????????????6?????????F,?E?????????????E??,?6???????? ??014R??015R?4(Rpi??????????)?????t???????A,?n???????W???a???6??+) ?W?????7[6]?????????????????6???l???K?U???????????v,?????????r: ?KQ=?KQA+?KQW =+i-0.907 5KQ 5( AE A0 ) ( AE A0 )+ ?KQ-Z AE A0 +U( ?b b )0.7,(4) ?f?=+??KQ?E?????6???l?U????????????????;?KQA?E?6???l?????????W???U???????????? ????;?KQW?E????(b-?b)???6?????8???????????u???????U????????????????; ( ?b b )0.7?E017R?4???????6?????l?F??????; AE?A0?E????????????;Z?E??????+) ?????D??????????,???????l???????6?????l???.?W?????????????r?f: ( ?b b )0.7= 0.0038?Γc?ps ( N 60 )4 ?D 50.907 5KQ 5( AE A0 ) ( AE A0 )- ?KQ?Z AE A0 ???N,(5) ?f?=Γc?E????????;ps?E?Z?E????(kW);N?E?????????1??????+) (5)?f?=?? 5KQ 5(AE?A0) ???KQ?1?5???o?r?f????????: 5KQ 5() = (Δ)5? 5(B 2 ) 5() ,(6) ?f?=Δ,B?E?E?????????????8?=?????????? 441+?+?+?+?+?+?+?+?+?+?+?+?+?+?+?+??????1???I??????+?+?+?+?+?+?+?+?+?+?+?+?+?+ ??024?? AE A0 0.247 0.1 p AE A0 p 100?KQ=-bt N x=0 y=0 BxyΓ x 0J y .(7) +?+?+?+?Γ0,J?1?5?E?????????[?????????.????, +?+?+?+?Bxy+(x+(y?1?5?E????????,?8?o?????7?W???a?n??????????+) 2+????????? ????2?6?D?????I??pg???.??pN??,???Z???E???E: +?+?Lpp=154m;B=22.0m;T=9.50m;CB=0.769; +?+?+?+??=25505.68t;0.7R?4?????F??b0.7=1301.6mm ?Z?E???D6RTA48???.?????????E????,?????????E564418kW;???????.?E150r?min;???? ?????f?EMAU264;?????E4152m;??????P?D?E0175;??????????Γ0?E01526;??????AE? A0?E0164;?????E5;?????p?(?????E0190+) ?W?K???D???.?:??,???.????135r?min,?????3???T???l??????????????????,?Z?E???. ????130r?min,?E???n?c???D?6??????????????????,?????.????4??5r?min,???????r: 211+??????6?????????? ???????O?6???????l???.????2r?min,?O017R?4???????6????+) ?W?????7[6]????: ( 3?b b )0.7= 0.0038ΓcPs ( N 60 )4 ?D 5 +i0.907 5KQ 5(AE?A0) ?( AE A0 )- 3?KQ?Z AE?A0 +U ??3?N +?+?+?b] 5KQ 5( AE A0 ) = 0.247 (0.1Δ)5? 5(B 2 p) 5( AE A0 ) +?+?(1)????Δ Δ= ND VA = 135??4.52 13??(1-013345) =70153 +?+?(2)????5(B 2 p) ??Δ=70.53??(????J= 30.86 Δ =0.437),??AE?A0=0.65???8?=????Bp=6.55,?n?? AE?A0=0.50???8?=????Bp=6165,?Y: +?+?+?+?+?5(B 2 p)=6.55 4 -6.65 4 =-115.0 (3)???? 5KQ 5( AE A0 ) 5KQ 5( AE A0 ) = 0.247 (0.1Δ)5- 5(B 2 p) 5( AE A0 ) = (??53)5?? (5) 655 =18 +?+?()????3?KQ 541?09?.+?+?+?+?+?+?+?+????(????:???????6?????-???W???W+(?E+(???W????????+?+?+?+ ?+?+?+?+? 0.247 0.170. -11.0 0.-0.0 -0010 4: KQ???o?o?????7??????????????,?o?r?f????+) 100?KQ=-bt N x=0 y=0 Bxy?Γ x 0?J y +?+???????3?KQ=0.0050669. (5)?????6????3?b b]( 3?b b )0.7= 0.0038??0.90??6528 ( 135 60 )4 ??4.525 ??+i0.907??(-0.0108)??0.64+ 0.005066??5 0.64 +U ??1 =010217. b[3?b=0.0217??b0.7=0.0217??1301.6=28125(mm) +?+??6??017R?4???????E28mm????+) 212+??????6?????????? ?W?????2???7[1]???.?????????6?????????????r: 3?N=75 3?D D +?+??f?=+?3?N?E?????????.??(r?min);3?D?E???????6????(mm)+) ????3?N=2r?min b[3?D= 3?N??D 75 = 2??4520 75 =120.5(mm) ?P??,???????6???????E120(mm) ??3+??????????6???? Fig.3Cutofpropeller 3+??m???????????W???????? ?0?????????-?D?u?????T?I???W?m????????????,?Z???- ?i?????????6???l?????.?????????????W?K??????????????, ?????????6????????3?P?E,???????6??110mm,?????D017R?4 ?6??25mm,???????1????2,?1?5???6?????l?????????m?????? ???[?????????:????,???????????l,?D???.?????.?2????(130 ??140r?min),?6???l??????????3??4r?min,?n???W?.?????a ?I,????3+) 4+????W???D???? ???????E2?6?D???I??pg???.??pN????1994??12?J?D?????W ???????????????6??????,?????????T???3??,?W?u???E?????? ???Z?E?????????(??????????????,???????6?????????:???W?l???????:?m?l?0?m???W?l?? ?3???:?m???E???????????r???????Z?E?.????????,(?8???3?????????a???????C?????????? ??)???l?;?m?????.???E135r?min???????r,?Z?E???1?????.???6?E????1?P?E+) 641+?+?+?+?+?+?+?+?+?+?+?+?+?+?+?+??????1???I??????+?+?+?+?+?+?+?+?+?+?+?+?+?+ ??024?? 4+????W?I?????? Fig.4Expectationoncharacterofship ??1+??6?????l???? Table.1Performanceofbeforediminishingthe propellerdiameterincomparisonwithafter ??+?+??? ?Z?E?1?? ?MPa(????) ?.???6?E???d ?6????(????:93??8?J)1011614404m2 ?6???l(????:95??3?J)9146105382m2 ?6???l????(?)61935145145 3,?????d???o ????+) ?8?u??????,???????6???l,?Z?E?. ????????,???+????????????+)???D???n ?.???r,?????????.??????+)???:?.???? ?a?I+) 5+???+?+??? (1)?????????6?????J?1,?????Z?E ?.??????,???.????,?W???W+(?E+(???W??, ?????Z?E????,?n???:?.?????a?I+) (2)?m???????????W???D???????l, ???=???????+???6?????????????????f???????2+) ???2???7 1+???????.???????6?????W?K?????I????????.?W?K???r,1984(6):42??46 2+??p???c.?6???????????????s???2???.????????.?W?K???r,1981,(3):3??9 3+???????.?????????????-????.?????W?K,1994,(4):11??19 4+??p??????.?W?D??????????.?e??:???t???T?????L,1976 5+??????E??.?W?K????.?e??:???k???T?????L,1985 6+???????.???????I???+???????1????.???g?p?W,1983,(1):15??30 741?09?.+?+?+?+?+?+?+?+????(????:???????6?????-???W???W+(?E+(???W????????+?+?+?+?+?+?+?+? EFFECTOFPROPELLEREDGE-CUTTING ONTHEMATCHOFSHIP,ENGINEANDPROPELLER LiJieya+?YuLing+?YangShaogang+?LiGanluo (CollegeofTrafficandCommunications,SouthChinaUniv.ofTech.) Abstract+?Thispaperoutlinestheeffectofpropelleredge2cuttingupontheimprovementon thematchofship,engineandthepropelleritself,offeringanestimationoftheenginespeed increasecausedbytheedge2cuttingandgivingtheresultsofmodelandfull2scaleshiptests. Keywords+?propellers;diameters;rotationspeed?followingedge 841+?+?+?+?+?+?+?+?+?+?+?+?+?+?+?+??????1???I??????+?+?+?+?+?+?+?+?+?+?+?+?+?+??024??