CN110486169A - 一种消音板及具有其的声衬 - Google Patents
一种消音板及具有其的声衬 Download PDFInfo
- Publication number
- CN110486169A CN110486169A CN201910874665.8A CN201910874665A CN110486169A CN 110486169 A CN110486169 A CN 110486169A CN 201910874665 A CN201910874665 A CN 201910874665A CN 110486169 A CN110486169 A CN 110486169A
- Authority
- CN
- China
- Prior art keywords
- arctan
- acoustical panel
- fiber
- glass
- laying angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 239000002131 composite material Substances 0.000 claims abstract description 19
- 239000003365 glass fiber Substances 0.000 claims abstract description 15
- 239000002344 surface layer Substances 0.000 claims abstract description 7
- 239000004593 Epoxy Substances 0.000 claims description 21
- 229920006231 aramid fiber Polymers 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 235000009967 Erodium cicutarium Nutrition 0.000 description 4
- 240000003759 Erodium cicutarium Species 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 230000008961 swelling Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000003733 fiber-reinforced composite Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/045—Air intakes for gas-turbine plants or jet-propulsion plants having provisions for noise suppression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0261—Polyamide fibres
- B32B2262/0269—Aromatic polyamide fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Laminated Bodies (AREA)
Abstract
本申请属于航空发动机声衬设计技术领域,具体涉及一种消音板,该消音板以纤维增强复合材料制作,其面层为玻璃纤维,其上消音孔以预定形式排列,其纤维铺层角度根据其上消音孔的排列形式设定。此外,还涉及一种声衬,包括:背板,由复合材料制作;蜂窝芯,由复合材料制作,其一侧与背板粘接;任一上述的声衬,与蜂窝芯的另一侧粘接。
Description
技术领域
本申请属于航空发动机声衬设计技术领域,具体涉及一种消音板及具有其的声衬。
背景技术
为降低发动机的噪声多在其机匣内铺设声衬,声衬多包含有背板、蜂窝芯、消音板,其中,消音板上具有多个消音孔,消音板与蜂窝芯形成多个并联的亥姆霍兹共振腔,将声能转化为动能,对声波进行耗散,达到降噪效果。
为满足飞机减重及其他方面的需求由复合材料制造的声衬正逐步取代由金属材料制造的声衬,其中,消音板多由芳纶纤维复合材料制造,该种消音板存在以下缺陷:
1)、芳纶纤维吸水性较强,发动机吞水后,消音板裸露的芳纶纤维会吸水肿胀,严重影响发动机的气动和结构性能;
2)、芳纶纤维复合材料依靠其内纤维承力,消音板上的消音孔多采用激光或机械打孔得到,该种打孔方式使消音板上消音孔穿孔区域内的纤维断裂,在芳纶纤维单向铺层的情形下,其纤维断裂率极高,致使消音板的刚性、强度遭受极大破坏,降低了消音板的抗冲击性及抗疲劳性。
鉴于现有技术的上述缺陷提出本申请。
发明内容
本申请的目的是提供一种消音板及具有其的声衬,以于克服或减轻现有技术至少一方面的缺陷。
本申请的技术方案是:
一方面提供一种消音板,该消音板以纤维增强复合材料制作,其面层为玻璃纤维,其上消音孔以预定形式排列,其纤维铺层角度根据其上消音孔的排列形式设定。
根据本申请的至少一个实施例,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/B:+30/B:+90/B:-30/B:0/B:+90/B:0/B:-30/B:+90/B:+30/B:0;或者为,
A:0/B:+30/B:-30/B:0/B:+90/B:0/B:0/B:90/B:-30/B:+30/B:0;其中,
A为玻璃纤维环氧树脂预浸料;
B为芳纶纤维环氧树脂预浸料,
根据本申请的至少一个实施例,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/A:+30/A:0/A:-30/A:0/A:+30/A:+90/A:+90/A:+30/A:0/A:-30/A:0/A:+30/A:0;或者为,
A:0/A:+30/A:-30/A:+30/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+30/A:-30/A:+30/A:0;其中,
A为玻璃纤维环氧树脂预浸料。
根据本申请的至少一个实施例,预定形式包括矩形形式;其纤维铺层角度为:
A:0/B:+arctan(L/M)/B:+90/B:-arctan(L/M)/B:0/B:+90/B:0/B:-arctan(L/M)/B:+90/B:+arctan(L/M)/B:0;或者为,
A:0/B:+arctan(L/M)/B:-arctan(L/M)/B:0/B:+90/B:0/B:0/B:+90/B:-arctan(L/M)/B:+arctan(L/M)/B:0;其中,
A为玻璃纤维环氧树脂预浸料;
B为芳纶纤维环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度。
根据本申请的至少一个实施例,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:+90/A:+90/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:0;或者为,
A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0;其中,
A为玻璃纤维环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度。
根据本申请的至少一个实施例,其纤维铺层角度为:
L=M。
另一方面提供一种声衬,包括:
背板,由复合材料制作;
蜂窝芯,由复合材料制作,其一侧与背板粘接;
任一上述的声衬,与蜂窝芯的另一侧粘接。
根据本申请的至少一个实施例,背板由玻璃纤维增强环氧树脂基复合材料制造;
蜂窝芯芳纶纤维增强环氧树脂基复合材料制造。
附图说明
图1是现有消音板铺层纤维的走向图;
图2-图7是本申请实施例提供的0°、90°、±30°、±45°纤维走向的示意图;
图8是本申请实施例提供的消音板上消音孔正三角形排列时±30°纤维走向的示意图;
图9是本申请实施例提供的消音板上消音孔正方形排列时±45°纤维走向的示意图;
图10是本申请实施例提供的声衬的组装示意图;
其中:
1-背板;2蜂窝芯;3-消音板。
具体实施方式
下面结合附图和实施例对本申请作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释相关申请,而非对该申请的限定。另外还需要说明的是,为了便于描述,附图中仅示出了与本申请相关的部分。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本申请。
需要说明的是,在本申请的描述中,术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方向或位置关系的术语是基于附图所示的方向或位置关系,这仅仅是为了便于描述,而不是指示或暗示装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本申请的限制。此外,术语“第一”、“第二”、“第三”仅用于描述目的,而不能理解为指示或暗示相对重要性。
此外,还需要说明的是,在本申请的描述中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或一体地连接;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通。对于本领域技术人员而言,可根据具体情况理解上述术语在本申请中的具体含义。
下面结合附图1至图10对本申请做进一步详细说明。
一方面提供一种消音板,该消音板以纤维增强复合材料制作,其面层为玻璃纤维,其上消音孔以预定形式排列,其纤维铺层角度根据其上消音孔的排列形式设定。
对于上述实施例公开的消音板,本领域技术人员可以理解的是,设计其面层为玻璃纤维,由于玻璃纤维具有良好的防水性能,可避免吸水肿胀,此外,其纤维铺层角度根据其上消音孔的排列形式进行设计,可使部分走向的纤维避开消音孔的穿孔区域,避免断裂,以此能够降低纤维的断裂率,保证消音板的强度。
在一些可选的实施例中,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/B:+30/B:+90/B:-30/B:0/B:+90/B:0/B:-30/B:+90/B:+30/B:0;或者为,
A:0/B:+30/B:-30/B:0/B:+90/B:0/B:0/B:90/B:-30/B:+30/B:0;其中,
A为玻璃纤维增强四枚缎纹环氧树脂预浸料;
B为八枚三飞缎纹芳纶纤维环氧树脂预浸料;其具体纤维铺层角度入下表所示:
对于上述实施例公开的消音板,本领域技术人员可以理解的是,其以玻璃纤维作为面层,可避免其主体结构芳纶纤维的吸水肿胀,能够使消音板以较小的厚度取得较大的强度;此外,在消音上消音孔以正三角形排列时,采用0°、90°、±30°预浸料进行铺层,±30°方向纬线的断裂率较低,以此可在一定程度上保证消音板的的刚性、强度。
在一些可选的实施例中,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/A:+30/A:0/A:-30/A:0/A:+30/A:+90/A:+90/A:+30/A:0/A:-30/A:0/A:+30/A:0;或者为,
A:0/A:+30/A:-30/A:+30/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+30/A:-30/A:+30/A:0;其中,
A为玻璃纤维增强四枚缎纹环氧树脂预浸料;其具体纤维铺层角度入下表所示:
对于上述实施例公开的消音板,本领域技术人员可以理解的是,其在消音上消音孔以正三角形排列时,采用0°、+90°、±30°预浸料进行铺层,±30°方向纬线的断裂率较低,以此可在一定程度上保证消音板的的刚性、强度。
在一些可选的实施例中,预定形式包括矩形形式;其纤维铺层角度为:
A:0/B:+arctan(L/M)/B:+90/B:-arctan(L/M)/B:0/B:+90/B:0/B:-arctan(L/M)/B:+90/B:+arctan(L/M)/B:0;或者为,
A:0/B:+arctan(L/M)/B:-arctan(L/M)/B:0/B:+90/B:0/B:0/B:+90/B:-arctan(L/M)/B:+arctan(L/M)/B:0;其中,
A为玻璃纤维增强四枚缎纹环氧树脂预浸料;
B为八枚三飞缎纹芳纶纤维环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度;其具体纤维铺层角度入下表所示:
对于上述实施例公开的消音板,本领域技术人员可以理解的是,其以玻璃纤维作为面层,可避免其主体结构芳纶纤维的吸水肿胀,能够使消音板以较小的厚度取得较大的强度;此外,在消音上消音孔以矩形排列时,采用0°、+90°、±arctan(L/M)预浸料进行铺层,±arctan(L/M)方向纬线的断裂率较低,以此可在一定程度上保证消音板的的刚性、强度。
在一些可选的实施例中,预定形式包括正三角形形式;
其纤维铺层角度为:
A:0/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:+90/A:+90/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:0;或者为,
A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0;其中,
A为玻璃纤维增强四枚缎纹环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度;其具体纤维铺层角度入下表所示:
对于上述实施例公开的消音板,本领域技术人员可以理解的是,其在消音上消音孔以正矩形排列时,采用0°、+90°、±arctan(L/M)预浸料进行铺层,±arctan(L/M)方向纬线的断裂率较低,以此可在一定程度上保证消音板的的刚性、强度。
在一些可选的实施例中,其纤维铺层角度为:
L=M,即消音孔的排列形式为正方形,采用0°、+90°、±45°预浸料进行铺层,±45°方向纬线的断裂率较低,以此可在一定程度上保证消音板的的刚性、强度。
另一方面提供一种声衬,包括:
背板1,由复合材料制作;
蜂窝芯2,由复合材料制作,其一侧与背板1粘接;
任一上述的声衬3,与蜂窝芯2的另一侧粘接。
在一些可选的实施例中,背板1由玻璃纤维增强环氧树脂基复合材料制造;
蜂窝芯2芳纶纤维增强环氧树脂基复合材料制造。
至此,已经结合附图所示的优选实施方式描述了本申请的技术方案,但是,本领域技术人员容易理解的是,本申请的保护范围显然不局限于这些具体实施方式。在不偏离本申请的原理的前提下,本领域技术人员可以对相关技术特征作出等同的更改或替换,这些更改或替换之后的技术方案都将落入本申请的保护范围之内。
Claims (10)
1.一种消音板,其特征在于,该消音板以纤维增强复合材料制作,其面层为玻璃纤维,其上消音孔以预定形式排列,其纤维铺层角度根据其上消音孔的排列形式设定。
2.根据权利要求1所述的消音板,其特征在于,
所述预定形式包括正三角形形式。
3.根据权利要求2所述的消音板,其特征在于,
其纤维铺层角度为:
A:0/B:+30/B:+90/B:-30/B:0/B:+90/B:0/B:-30/B:+90/B:+30/B:0;或者为,
A:0/B:+30/B:-30/B:0/B:+90/B:0/B:0/B:90/B:-30/B:+30/B:0;其中,
A为玻璃纤维环氧树脂预浸料;
B为芳纶纤维环氧树脂预浸料。
4.根据权利要求2所述的消音板,其特征在于,
其纤维铺层角度为:
A:0/A:+30/A:0/A:-30/A:0/A:+30/A:+90/A:+90/A:+30/A:0/A:-30/A:0/A:+30/A:0;或者为,
A:0/A:+30/A:-30/A:+30/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+30/A:-30/A:+30/A:0;其中,
A为玻璃纤维环氧树脂预浸料。
5.根据权利要求1所述的消音板,其特征在于,
所述预定形式包括矩形形式。
6.根据权利要求5所述的消音板,其特征在于,
其纤维铺层角度为:
A:0/B:+arctan(L/M)/B:+90/B:-arctan(L/M)/B:0/B:+90/B:0/B:-arctan(L/M)/B:+90/B:+arctan(L/M)/B:0;或者为,
A:0/B:+arctan(L/M)/B:-arctan(L/M)/B:0/B:+90/B:0/B:0/B:+90/B:-arctan(L/M)/B:+arctan(L/M)/B:0;其中,
A为玻璃纤维环氧树脂预浸料;
B为芳纶纤维环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度。
7.根据权利要求5所述的消音板,其特征在于,
其纤维铺层角度为:
A:0/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:+90/A:+90/A:+arctan(L/M)/A:0/A:-arctan(L/M)/A:0/A:+arctan(L/M)/A:0;或者为,
A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0/A:+90/A:0/A:0/A:+90/A:0/A:+arctan(L/M)/A:-arctan(L/M)/A:+arctan(L/M)/A:0;其中,
A为玻璃纤维环氧树脂预浸料;
L为矩形的长度;
M为矩形的宽度。
8.根据权利要求6或7所述的消音板,其特征在于,
其纤维铺层角度为:
L=M。
9.一种声衬,其特征在于,包括:
背板(1),由复合材料制作;
蜂窝芯(2),由复合材料制作,其一侧与所述背板(1)粘接;
如权利要求1-7所述的声衬(3),与所述蜂窝芯(2)的另一侧粘接。
10.根据权利要求9所述的声衬,其特征在于,
所述背板(1)由玻璃纤维增强环氧树脂基复合材料制造;
所述蜂窝芯(2)芳纶纤维增强环氧树脂基复合材料制造。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910874665.8A CN110486169B (zh) | 2019-09-17 | 2019-09-17 | 一种消音板及具有其的声衬 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910874665.8A CN110486169B (zh) | 2019-09-17 | 2019-09-17 | 一种消音板及具有其的声衬 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110486169A true CN110486169A (zh) | 2019-11-22 |
CN110486169B CN110486169B (zh) | 2021-10-01 |
Family
ID=68557340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910874665.8A Active CN110486169B (zh) | 2019-09-17 | 2019-09-17 | 一种消音板及具有其的声衬 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110486169B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111706433A (zh) * | 2020-05-11 | 2020-09-25 | 中国航发沈阳发动机研究所 | 一种声衬组合结构 |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19653387A1 (de) * | 1996-12-20 | 1998-06-25 | Krempel August Soehne | Prepregmaterial, insbesondere für elektrische Isolierungen |
CN1712443A (zh) * | 2004-06-15 | 2005-12-28 | 株式会社东芝 | 吸声衬垫组合物、超声波探针及超声波诊断装置 |
CN102602083A (zh) * | 2012-03-20 | 2012-07-25 | 浙江顺天复合材料有限公司 | 一种纤维增强复合材料芯及其制备方法 |
RO127764A2 (ro) * | 2011-02-18 | 2012-08-30 | Costin Panaitescu | Rotor ventilator pentru motoare turbofan |
CN105058812A (zh) * | 2015-07-15 | 2015-11-18 | 北京航空航天大学 | 一种可折叠纤维增强树脂基复合材料管的成型方法 |
CN105089800A (zh) * | 2015-08-26 | 2015-11-25 | 成都博世德能源科技股份有限公司 | 一种降噪型燃气轮机进气系统 |
WO2016144331A1 (en) * | 2015-03-10 | 2016-09-15 | Middle River Aircraft Systems | Acoustic liners for use in a turbine engine |
CN107023402A (zh) * | 2015-12-30 | 2017-08-08 | 通用电气公司 | 用于燃气涡轮发动机构件的声学衬垫 |
US9741331B1 (en) * | 2016-06-01 | 2017-08-22 | The Boeing Company | Sound-attenuating composite structure |
CN206647184U (zh) * | 2017-04-07 | 2017-11-17 | 中国航发沈阳发动机研究所 | 用于填充发动机外涵道间隙的盖板 |
CN107804046A (zh) * | 2017-09-18 | 2018-03-16 | 航天材料及工艺研究所 | 一种复合材料消音降噪声衬及其制备方法 |
CN207130166U (zh) * | 2017-06-07 | 2018-03-23 | 国电联合动力技术有限公司 | 一种碳纤维复合材料 |
WO2018056723A1 (ko) * | 2016-09-26 | 2018-03-29 | (주)엘지하우시스 | 보강 복합재 및 이를 포함하는 물품 |
CN108568550A (zh) * | 2017-03-14 | 2018-09-25 | 中国航发商用航空发动机有限责任公司 | 用于薄壁结构的钻孔系统 |
CN109514951A (zh) * | 2018-09-26 | 2019-03-26 | 济南北方泰和新材料有限公司 | 纤维增强轻质夹芯复合材料及制备的地铁驾驶舱舱体 |
US20190112066A1 (en) * | 2017-10-16 | 2019-04-18 | Rohr, Inc. | Structural panel with splice joint between adjacent core structures |
-
2019
- 2019-09-17 CN CN201910874665.8A patent/CN110486169B/zh active Active
Patent Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19653387A1 (de) * | 1996-12-20 | 1998-06-25 | Krempel August Soehne | Prepregmaterial, insbesondere für elektrische Isolierungen |
CN1712443A (zh) * | 2004-06-15 | 2005-12-28 | 株式会社东芝 | 吸声衬垫组合物、超声波探针及超声波诊断装置 |
RO127764A2 (ro) * | 2011-02-18 | 2012-08-30 | Costin Panaitescu | Rotor ventilator pentru motoare turbofan |
CN102602083A (zh) * | 2012-03-20 | 2012-07-25 | 浙江顺天复合材料有限公司 | 一种纤维增强复合材料芯及其制备方法 |
WO2016144331A1 (en) * | 2015-03-10 | 2016-09-15 | Middle River Aircraft Systems | Acoustic liners for use in a turbine engine |
CN105058812A (zh) * | 2015-07-15 | 2015-11-18 | 北京航空航天大学 | 一种可折叠纤维增强树脂基复合材料管的成型方法 |
CN105089800A (zh) * | 2015-08-26 | 2015-11-25 | 成都博世德能源科技股份有限公司 | 一种降噪型燃气轮机进气系统 |
CN107023402A (zh) * | 2015-12-30 | 2017-08-08 | 通用电气公司 | 用于燃气涡轮发动机构件的声学衬垫 |
US9741331B1 (en) * | 2016-06-01 | 2017-08-22 | The Boeing Company | Sound-attenuating composite structure |
WO2018056723A1 (ko) * | 2016-09-26 | 2018-03-29 | (주)엘지하우시스 | 보강 복합재 및 이를 포함하는 물품 |
CN108568550A (zh) * | 2017-03-14 | 2018-09-25 | 中国航发商用航空发动机有限责任公司 | 用于薄壁结构的钻孔系统 |
CN206647184U (zh) * | 2017-04-07 | 2017-11-17 | 中国航发沈阳发动机研究所 | 用于填充发动机外涵道间隙的盖板 |
CN207130166U (zh) * | 2017-06-07 | 2018-03-23 | 国电联合动力技术有限公司 | 一种碳纤维复合材料 |
CN107804046A (zh) * | 2017-09-18 | 2018-03-16 | 航天材料及工艺研究所 | 一种复合材料消音降噪声衬及其制备方法 |
US20190112066A1 (en) * | 2017-10-16 | 2019-04-18 | Rohr, Inc. | Structural panel with splice joint between adjacent core structures |
CN109514951A (zh) * | 2018-09-26 | 2019-03-26 | 济南北方泰和新材料有限公司 | 纤维增强轻质夹芯复合材料及制备的地铁驾驶舱舱体 |
Non-Patent Citations (3)
Title |
---|
康钟绪等: "穿孔板的声学厚度修正", 《声学学报》 * |
张丽娜等: "蜂窝夹层结构消音板平压试验研究", 《科技创新与应用》 * |
陈俊等: "风扇前传噪声及声衬特性研究", 《推进技术》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111706433A (zh) * | 2020-05-11 | 2020-09-25 | 中国航发沈阳发动机研究所 | 一种声衬组合结构 |
CN111706433B (zh) * | 2020-05-11 | 2022-02-22 | 中国航发沈阳发动机研究所 | 一种声衬组合结构 |
Also Published As
Publication number | Publication date |
---|---|
CN110486169B (zh) | 2021-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DK2904262T3 (en) | FIBER COMPOSITION COMPONENT FOR THE ROTOR BLADE IN A WIND TURBINE | |
CN105643997A (zh) | 具有雷达隐身功能的方舱大板及其制备方法 | |
CN104015937B (zh) | 具有开放侧面的航天器 | |
EP2470364B1 (en) | Wind turbine composite structures | |
CN102653316B (zh) | 损坏的结构的维修部件和方法,以及用于实施的维修工具 | |
EP2943336B1 (en) | Triaxial fiber-reinforced composite laminate | |
EP2610164A1 (en) | Aircraft with fuselage-mounted engines and an internal shield | |
KR20110100192A (ko) | 풍력 터빈 날개 및 이를 사용하는 풍력 터빈 발전장치 | |
CN102493651B (zh) | 混凝土设备及其臂架 | |
CN110487533A (zh) | 一种声衬试验件、组装方法及其测试结构 | |
US9034453B2 (en) | Reinforced aircraft fuselage panel and method of manufacture | |
RU2568543C1 (ru) | Крепежная бобышка и кожух вентилятора | |
CN110486169A (zh) | 一种消音板及具有其的声衬 | |
CN105346152A (zh) | 一种发动机短舱声衬 | |
CN102271904A (zh) | 改良的复合材料 | |
WO2015153475A1 (en) | Systems and methods of producing a structural and non-structural homogeneous and hybrid composite panels, prepregs, hand layup panels with "basalt" fiber, various composite materials, and additives | |
RU2126345C1 (ru) | Крышка трубопровода и способ ее изготовления | |
CN110486334A (zh) | 一种声衬及具有其的发动机 | |
US9682519B2 (en) | Integral composite bushing system and method | |
RU2541581C2 (ru) | Узел передней кромки, в частности, для воздухозаборника гондолы двигателя летательного аппарата | |
CN108990333A (zh) | 复合材料机箱及其成型工艺方法 | |
JP4957681B2 (ja) | レドーム | |
CN112460075A (zh) | 一种复合材料可调静子叶片 | |
JP2010052270A (ja) | 構造部材及びレドーム | |
CN205800436U (zh) | 一种具有电磁蒙蔽功能的内饰板 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |