A physical method for predicting thrust imbalance of solid rocket motor pairs for a satellites launcher

A physical method for predicting thrust imbalance of solid rocket motor pairs for a satellites launcher
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预测卫星发射固体火箭发动机副推力不平衡的物理方法

DOI:
10.2514/6.1987-1740
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发表时间:
1987
期刊:
--
影响因子:
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通讯作者:
Bernard Loubere
Bernard Loubere
中科院分区:
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文献类型:
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作者:
G. Delannoy;Bernard Loubere

文献摘要

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T h is纸p r e s e n c T s方法f o r l u l n g w T我l l他非常大(超过一百r和p e s s u r e和T h r u s T ve r sus T输入法我l n s o d f f T y m e T r i c吨b o o s T e r)。c u r r e n t p r o p e l l n t r o c k e t发动机。此法比t k e s i n t o p r o p e l l n t混合c p b我l t y是p r e s e n t l y不是账户p o s s i b l e s c a t t e r i n g p r o p e l l n t l r g e r比3 m e t r c吨混合器。b u r n i n g r t e, f o r i n s t e n c可能我t p r c t c l l y imposs ib t o o b t我n两个s g n我f c n t e f f e c t t h e t h r u s t失衡f o r s t r i c t l y我t d e n c l p r o p e l l n t b t c h e s。如果你不知道,那你就不知道了。thc之一p r e l我m n y T h e r f e o r e T h e问u e s T i o n的r i s e s d c s i g n s b o o s T e r s对f o r T h f e u T u r e过程有T o f使用o r制作T h e s T e l l i T e s l u n c h e r阿丽亚娜V c o n s i s T s p r o p e T l l n g r f i n s o r T h e s e两个b o o s T e r s。分段s o l i d r o c k e t汽车。检查方法和程序。需要一个人!随后s t t我s t c一个l n l y s i s使用f o r n a l y s i n g和s e l e c t i n g bes t过程f o r一个段,和f t e r w r d s o t h c c s t i n g p r o p e l l n t h t c h e s d u r i n g t h e manuone由s t c k我n g t h e b t c h e s是f c t u r e t h e g r i n s。生产。制造一个带有几个小阀瓣的段,同时制造两个助推器,这两个助推器的命名是一个小阀瓣,或者一个小阀瓣。c o e f f我e n c t t h e烧荷兰国际集团(ing) r t e l的w symmetr ica l ly d p o年代我n g每h l f舱口i n t喷嘴t h r o t区每一段。A、B追捕p o我燃烧n t s l n e CD d s c h r g e c o e f f我e n c t f i n d t h e B e s t过程f o r减少CF t l lr l lst c o e f f我e n c t t h r u s t d i f f e r e n c e t h e两个B o o s t e r s f t h r u s t t h e r o c k e t汽车c u r r e n t方法c l c u l t i n g烧荷兰国际集团(ing) f r o n t 2燃烧:i n t e r s e c t i o n t h e区和t h e r f e o r e t h r u s t,作为f u n c t i o n weh烧荷兰国际集团(ing) f r o n t w i t h p巷我n c u l d n g t h e u e l e s年代烧毁。有必要t o进行电动机x我n e r s t o f p t t e r n t h t是一个k b l e t o t e i n t o M c u r r e n t p o我n t燃烧线2 M质量流量r t e i n s我d e之间的一批或d f f e r e n t ha业务信道。N ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N) v ^ (N)一种了解火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法,火苗燃烧的方法。这是一个很重要的问题,我们需要一次又一次地解决这个问题,我们需要一次又一次地解决这个问题,我们需要一次又一次地解决这个问题,我们需要一次又一次地解决这个问题,我们认为这个问题在轴对称几何中有Vc燃烧。假设它是,它是,它减少了燃烧,它是,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧,它减少了燃烧。这是一个l s o y t r n s v e r s e c o o r d i n t e认为t h t p r o p e l l n t烧荷兰国际集团(ing) r t e是一个9 t h r u s t e f f我c e n c y axisymmetr ic f u n c t i o n的空间和时间。在制造加工过程中,有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点,即在加工过程中有一个突出的特点。这个问题是,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到,在燃烧的情况下,你可以看到。22. 数学上的p是p的n次方,因为几何是轴对称的,所以它可以被看作是一条连续的线,它可以被看作是一条连续的线。我在p车道,我在c车道,但我想我在电动机。年代,两个p o我n t s (xo, y)和B (x, y)账户p r o p e l l n t燃烧液化天然气r t e s c A t t e r i n g - pc的压力我n t h e燃烧室e v o l u t i o n g r我n g n i t e d t一旦总体上t h e B s u s c r i p t s o,我,m f o r编号p o n t s的d s c r e t我z s e d气体f低r t e以及什么是e v o l u + t i o n, o r e l f t和r i g h t d e r我v t v e s s u p e r s c f i p t s K o r t ime (s t e p s 1编号。我n t u r o d c t o n线2 f t u r e s t e l l I t e s l u n w c h e r阿丽亚娜V我l l p r o p e l l e d主要由l我问你我d p r o p e l l n t rocke t (c f f I g u r e 1)。电机由p i d e d我l r的分段s o d l l p r o p e n t r o c k e t b o o s t e r s。缺点考虑ing t h r u s t和燃烧ing ime t h t q r e u i r e d, t h e s的减小了t h e s o l i d p r o p e l l n t颗粒t h e 2 b o o s t e r s版权0 ~ mer icsn lnrlitute的爱尔兰(lnPUticE和我l r ~ n ~ t c, h e。。1987. 好吧,重拍。F i g u r e 1回归离子c u r r e n t l po在t M t h e燃烧我n e O n l n e 2,我t p O s s b l e t O c h r c t e r z c n c u r r e t p O我n t M×e t h e l n g t h p t h s irom p i n t t O p O我n t M s (h) = J d s (1)
T h i s paper p r e s e n t s a method f o r c a l u l a t i n g w i l l he very large (more than one hundred and p r e s s u r e and t h r u s t ve r sus t ime i n a s o l i d f i f t y m e t r i c tons per b o o s t e r ) . The c u r r e n t p r o p e l l a n t r o c k e t motor. This nethod t a k e s i n t o p r o p e l l a n t mixing c a p a b i l i t y is p r e s e n t l y not account p o s s i b l e s c a t t e r i n g of p r o p e l l a n t l a r g e r than 3 m e t r i c tons per mixer . b u r n i n g r a t e which f o r i n s t a n c e may have a I t is p r a c t i c a l l y imposs ib le t o o b t a i n two S i g n i f i c a n t e f f e c t on t h e t h r u s t imbalance f o r a s t r i c t l y i d e n t i c a l p r o p e l l a n t b a t c h e s . r o c k e t b o o s t e r s p a i r . One of thc p r e l i m i n a r y T h e r e f o r e , t h e q u e s t i o n a r i s e s of which d c s i g n s of b o o s t e r s pair f o r t h e f u t u r e procedure has t o be used f o r manufactur ing t h e s a t e l l i t e s l a u n c h e r Ariane V c o n s i s t s in p r o p e l l a n t g r a i n s f o r t h e s e two b o o s t e r s . segmented s o l i d r o c k e t motors . The method and Procedures t o be exami.ned a re ! subsequent s t a t i s t i c a l a n a l y s i s are used f o r a n a l y s i n g and s e l e c t i n g the bes t procedure f o r making one segment, and a f t e r w a r d s an o t h c r c a s t i n g p r o p e l l a n t h a t c h e s d u r i n g t h e manuone by s t a c k i n g t h e b a t c h e s as they are f a c t u r e of t h e g r a i n s . produced. making one segment wi th a few number of l a r g e manufac tur ing s imul taneous ly t h e two boosters Nomcnclature b a t c h e s or a l a r g e number of small ha tches . a c o e f f i c i e n t of t h e burn ing r a t e l a w by symmetr ica l ly d i s p o s i n g every h a l f hatch i n A t nozzle t h r o a t area each segment. A,B hounding p o i n t s of combustion l i n e CD d i s c h a r g e c o e f f i c i e n t To f i n d t h e b e s t procedure f o r reducing CF t l lr l lst c o e f f i c i e n t t h r u s t d i f f e r e n c e between t h e two b o o s t e r s , F t h r u s t of t h e r o c k e t motor c u r r e n t methods of c a l c u l a t i n g burn ing f r o n t 2 combustion line : i n t e r s e c t i o n of t h e area and t h e r e f o r e t h r u s t , as a f u n c t i o n of weh burn ing f r o n t w i t h a p lane i n c l u d i n g t h e burned are u s e l e s s . It is necessary t o proceed motor a x i s t o a f i n e r p a t t e r n t h a t is a b l e t o t a k e i n t o M c u r r e n t p o i n t of combustion line 2 m mass flow r a t e i n s i d e a batch or between d i f f e r e n t ha tches . N normal v e c t o r o n 2 n p r e s s u r e exponent of t h e hurn ing r a t e l a w 0 r e f e r e n c e p o i n t 2. Method f o r knowing t h e burn ing f r o n t s c u r v i l i n e a r a b s c i s s a on l i n e 2 T t a n g e n t i a l v e c t o r on 21. P h y s i c a l problem t o he addressed t t ime t y reduced t ime The p r o p e l l a n t g r a i n which is cons idered has an Vc burn ing r a t e axisymmetr ic geometry. It is assumed t h a t t h e Vy reduced burn ing r a t e x a x i a l c o o r d i n a t e u n r e s t r i c t e d p r o p e l l a n t s u r f a c e . It is a l s o y t r a n s v e r s e c o o r d i n a t e assumed t h a t p r o p e l l a n t burn ing r a t e is an 9 t h r u s t e f f i c i e n c y axisymmetr ic f u n c t i o n of space and time. The 8 c h a r a c t e r i s t i c a n g l e f o r a prominent p o i n t manufac tur ing process g e n e r a l l y j u s t i f l e s t h i s ,Qp p r o p e l l a n t d e n s i t y assumption. 9 a n g u l a r s e c t o r under combustion The problem is t o d e s c r i b e and c a l c u l a t e which e v o l u t i o n occurs f o r t h e burn ing f r o n t and t h e t h e t h r u s t versus t ime. 22. Mathematical p a t t e r n of p h y s i c a l phenomena Because t h e geometry is axisymmetr ic , t h e b u r n i n f r o n t can be d e f i n e d as a cont inuouS line.$ i n a p lane i n c l u d i n g t h e motor ani.s, between two p o i n t s A (xo, y. ) and B (x, , y, ) account p r o p e l l a n t burn lng r a t e s c a t t e r i n g -, pc pressure i n t h e combustion chamber e v o l u t i o n g r a i n is i g n i t e d a t once on t h e whole S u b s c r i p t s o,i,m f o r numbering p o i n t s of the d i s c r e t i s i z e d gas f low r a t e and also what is the e v o l u t i o n of +,f o r l e f t and r i g h t d e r i v a t i v e s S u p e r s c r i p t s K f o r numbering t ime S t e p s 1. I n t r o d u c t i o n line 2 The f u t u r e s a t e l l i t e s l a u n c h e r Ariane V w i l l he p r o p e l l e d by a main l i q u i d p r o p e l l a n t rocke t (c f f i g u r e 1 ) . motor a i d e d by a p a i r of segmented s o l i d p r o p e l l a n t r o c k e t b o o s t e r s . Cons ider ing t h r u s t and burn ing t ime t h a t are r e q u i r e d , t h e s ize of t h e s o l i d p r o p e l l a n t grains for t h e two b o o s t e r s Copyright 0 ~mer icsn lnrlitute of Aer(lnPUticE and A i l r ~ n a ~ t i c s , h e . . 1987. All righlr resewed. F i g u r e 1 Regress ion of a c u r r e n t po in t M on t h e combustion l i n e O n l i n e 2 , i t is p o s s i b l e t o c h a r a c t e r i z c a c u r r e n t p o i n t M by t h e l e n g t h of p a t h s irom p o i n t A t o p o i n t M S(H) = J d s (1)