CN109572105A - 一种船用多层复合隔声结构 - Google Patents

一种船用多层复合隔声结构 Download PDF

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CN109572105A
CN109572105A CN201811265479.6A CN201811265479A CN109572105A CN 109572105 A CN109572105 A CN 109572105A CN 201811265479 A CN201811265479 A CN 201811265479A CN 109572105 A CN109572105 A CN 109572105A
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CN109572105B (zh
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金叶青
冷文军
杨文山
傅鑫
李霖
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719th Research Institute of CSIC
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
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    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/043—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/095—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyurethanes
    • 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
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • 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
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • 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
    • B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
    • 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 form; Layered products having particular features of form
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    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
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    • B63B3/68—Panellings; Linings, e.g. for insulating purposes
    • 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
    • B32B2307/102—Insulating
    • 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
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Abstract

本发明提供了一种船用多层复合隔声结构，包括依次层叠的面板层、阻尼层、空气层、吸声材料层、轻钢龙骨、背板层；所述阻尼层采用聚氨酯，该阻尼层的参数为：密度22kg/m3，杨氏模量46500N/m2，泊松比0.4，阻尼系数0.14。本发明提供的船用多层复合隔声结构，可以有效地针对宽频带噪声源，对低频和中高频的噪声均具有较好的隔声效果，具有非常好的军事意义和社会效益。

Description

一种船用多层复合隔声结构
技术领域
本发明涉及船舶的噪音控制领域，特别是指一种船用多层复合隔声结构。
背景技术
船舶在行驶过程中，机电设备的运转会产生较大的噪声。为保护船上人员不受噪声影响，拥有宁静舒适的生活、工作环境，可以在噪声源处或传递路径上设置隔声结构以增大传递损失，达到控制噪声的目的。
从隔声的机理来看，隔声结构的隔声遵从质量定律。即对一定频率的声波，隔声结构的隔声量的决定因素为隔声结构的面密度和厚度。要想获得好的低频隔声效果，则势必要增加隔声结构的厚度。通过采用一些复合结构，可以突破质量定律的约束，提高隔声结构的隔声量。
目前常见的隔声结构为多层板加空腔或吸声阻尼层来达到优化的目的，但是此种优化结构在低频段的隔声性能仍不佳。
发明内容
本发明要解决的技术问题是：提供一种船用多层复合隔声结构，可以有效地针对宽频带噪声源，对低频和中高频的噪声均具有较好的隔声效果。
本发明提供的一种船用多层复合隔声结构，包括依次层叠的面板层、阻尼层、空气层、吸声材料层、轻钢龙骨、背板层；所述阻尼层采用聚氨酯，该阻尼层的参数为：密度22kg/m3，杨氏模量46500N/m2，泊松比0.4，阻尼系数0.14。
可选地，所述阻尼层的厚度为1mm～7mm。
所述吸声材料层为蜂窝状。
所述吸声材料层采用聚酰亚胺、聚氨酯或三聚氰胺。
所述轻钢龙骨选用C型轻钢龙骨。
所述C型轻钢龙骨尺寸为30mm×30mm×0.8mm、50mm×30mm×0.8mm、70mm×50mm×0.8mm。
本发明的有益效果为：首先，本发明提供的船用多层复合隔声结构，通过采用多层结构，对宽频带噪声源的低频和中高频的噪声具有较好的隔声效果。其次，本发明通过引入轻钢龙骨，有效提高结构的整体刚度，在满足结构强度和刚度要求的前提下，可以替代传统的船舶舱室围壁结构。最后，本发明多层复合隔声结构可有效减少船舶舱室舾装的建造时间，提高建造效率，具有较高的应用价值。
附图说明
图1本发明实施例船用多层复合隔声结构剖面示意图；
图2本发明实施例与现有夹心隔声结构隔声曲线对比图；
图中：1-面板层、2-阻尼层、3-空气层、4-吸声材料层、5-轻钢龙骨、6-背板层。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有付出创造性劳动的前提下所获得的所有其他实施例，都属于本发明的保护范围。
参照图1所示，本发明实施例提供的船用多层复合隔声结构，包括依次层叠的面板层1、阻尼层2、空气层3、吸声材料层4、轻钢龙骨5、背板层6。
所述的面板层1和背板层6均选用面密度较大的实心钢板制成，本实施例中选用不锈钢板材。在本发明的一种实施方式中，所述面板层与背板层的厚度为0.5mm～5mm。
所述的阻尼层2粘接在面板层1的一侧，其厚度为1mm～7mm，视总厚度的限制条件而定，其材料参数如下表1所示。
表1阻尼材料参数
材料参数 阻尼材料(聚氨酯)
密度kg/m<sup>3</sup> 22
杨氏模量N/m<sup>2</sup> 46500
泊松比 0.4
阻尼系数 0.14
所述的吸声材料层4选用聚酰亚胺、聚氨酯或三聚氰胺制成。吸声材料层采用蜂窝状的结构形式，这种结构形式可在吸声材料层的内部形成封闭的空腔，进一步提升结构的隔声技能。吸声材料层的厚度约为30mm～70mm，厚度可根据结构的总厚度进行相应地调整，主要吸声材料的相关参数如下表2所示。
表2主要吸声材料的相关参数
材料 密度(kg/m<sup>3</sup>) 杨氏模量(N/m<sup>2</sup>) 泊松比 阻尼系数
聚氨酯 22 46500 0.4 0.14
三聚氰胺 8.8 80000 0.4 0.14
聚酰亚胺 13.8 3×10<sup>9</sup> 0.34 -
所述的轻钢龙骨5选用C型轻钢龙骨，轻钢龙骨5的尺寸取决于结构的总厚度。C型轻钢龙骨尺寸为30mm×30mm×0.8mm、50mm×30mm×0.8mm、70mm×50mm×0.8mm。
为验证本发明实施例船用多层复合隔声结构对宽频噪声具有良好的隔声性能，将本发明实施例的船用多层复合隔声结构和传统夹芯隔声结构进行对比。图2为在隔声结构厚度大致相同的情况下，两种结构的隔声量对比曲线。从对比曲线中可以看出，在10Hz-200Hz的低频段，优化结构的平均传递损失较之传统夹芯结构高出3dB左右，而在200Hz以后的中高频段优化的隔声结构其传递损失优势明显。综上所述，本发明实施例船用多层复合隔声结构对于宽频噪声全频段均具有较好的隔声性能，是一种优质的船用隔声结构。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本领域的技术人员在本发明揭露的范围内，可轻易想到的变化或者替换，都应该涵盖在本发明的保护范围内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (6)

1.一种船用多层复合隔声结构，其特征在于：包括依次层叠的面板层、阻尼层、空气层、吸声材料层、轻钢龙骨、背板层；所述阻尼层采用聚氨酯，该阻尼层的参数为：密度22kg/m3，杨氏模量46500N/m2，泊松比0.4，阻尼系数0.14。
2.根据权利要求1所述的船用多层复合隔声结构，其特征在于：所述阻尼层的厚度为1mm～7mm。
3.根据权利要求1所述的船用多层复合隔声结构，其特征在于：所述吸声材料层为蜂窝状。
4.根据权利要求1所述的船用多层复合隔声结构，其特征在于：所述吸声材料层采用聚酰亚胺、聚氨酯或三聚氰胺。
5.根据权利要求1所述的船用多层复合隔声结构，其特征在于：所述轻钢龙骨选用C型轻钢龙骨。
6.根据权利要求5所述的船用多层复合隔声结构，其特征在于：所述C型轻钢龙骨尺寸为30mm×30mm×0.8mm、50mm×30mm×0.8mm、70mm×50mm×0.8mm。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110580894A (zh) * 2019-09-24 2019-12-17 哈尔滨工程大学 一种用于水下探测设备的声障板复合结构
CN110580895A (zh) * 2019-09-24 2019-12-17 哈尔滨工程大学 一种用于水下探测设备的声障板组合
CN110733210A (zh) * 2019-10-30 2020-01-31 无锡德林防务装备股份有限公司 船用高效吸音板

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Publication number Priority date Publication date Assignee Title
CN105369936A (zh) * 2015-11-20 2016-03-02 张鑫扬 金属板轻质隔墙
CN207363100U (zh) * 2017-07-06 2018-05-15 河北卓达建材研究院有限公司 一种新型节能墙体

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105369936A (zh) * 2015-11-20 2016-03-02 张鑫扬 金属板轻质隔墙
CN207363100U (zh) * 2017-07-06 2018-05-15 河北卓达建材研究院有限公司 一种新型节能墙体

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110580894A (zh) * 2019-09-24 2019-12-17 哈尔滨工程大学 一种用于水下探测设备的声障板复合结构
CN110580895A (zh) * 2019-09-24 2019-12-17 哈尔滨工程大学 一种用于水下探测设备的声障板组合
CN110580894B (zh) * 2019-09-24 2024-04-19 哈尔滨工程大学 一种用于水下探测设备的声障板复合结构
CN110580895B (zh) * 2019-09-24 2024-04-19 哈尔滨工程大学 一种用于水下探测设备的声障板组合
CN110733210A (zh) * 2019-10-30 2020-01-31 无锡德林防务装备股份有限公司 船用高效吸音板

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