CN104141720B - A kind of square grid plate with isolation characteristics - Google Patents

A kind of square grid plate with isolation characteristics Download PDF

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Publication number
CN104141720B
CN104141720B CN201410366127.5A CN201410366127A CN104141720B CN 104141720 B CN104141720 B CN 104141720B CN 201410366127 A CN201410366127 A CN 201410366127A CN 104141720 B CN104141720 B CN 104141720B
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vibration isolation
local
resonance type
grid plate
phononic crystal
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CN104141720A (en
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刘荣强
赵浩江
郭宏伟
邓宗全
史创
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Harbin Institute of Technology Shenzhen
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Harbin Institute of Technology Shenzhen
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Abstract

A kind of square grid plate with isolation characteristics, it relates to a kind of Turbogrid plates with isolation characteristics, to solve the problem that current cellular structure Turbogrid plates do not have vibration isolation, sound insulation property, it comprises covering, locally resonant type phonon crystal vibration isolation assembly and lower covering, upper covering is arranged in the top of lower covering, the locally resonant type phonon crystal vibration isolation assembly gluedd joint with the two is furnished with between upper covering and lower covering, described locally resonant type phonon crystal vibration isolation assembly is by transversely forming with longitudinal cycle equally distributed multiple locally resonant type phonon crystal unit, adjacent locally resonant type phonon crystal unit glueds joint, each locally resonant type phonon crystal unit is the regular prism structure that each side has local oscillator, local oscillator is the ring structure that inside and outside double-deck splicing is integrated, local oscillator is glued on locally resonant type vibration isolation phonon crystal regular prism framework matrix.The present invention is used for vibration isolation sound insulation.

Description

一种具有隔振特性的正方形栅格板A square grid plate with vibration isolation properties

技术领域technical field

本发明涉及一种具有隔振特性的隔振板,属于隔振降噪技术领域。The invention relates to a vibration isolation plate with vibration isolation characteristics, belonging to the technical field of vibration isolation and noise reduction.

背景技术Background technique

在机械工业以及其他工业部门都存在着各种振动问题,振动隔离(简称隔振)是振动控制中应用最广泛的一项减振技术,其实质是在振源与系统之间附加一个子系统(隔振器),从能量的观点来看,隔振是改变振源对系统激励的能量频谱结构,以减少通过频率的能量来抑制振动。声子晶体的一个重要特征是其声波带隙,即在声子晶体是由两种或两种以上弹性介质组成的具有周期结构和弹性波带隙特性的功能材料或结构。弹性波在声子晶体中传播时,受其内部周期结构的作用,形成特殊的带隙。带隙频率范围的弹性波传播被抑制,因此声子晶体在隔振领域有着广阔的应用前景。Various vibration problems exist in the machinery industry and other industrial sectors. Vibration isolation (referred to as vibration isolation) is the most widely used vibration reduction technology in vibration control. Its essence is to add a subsystem between the vibration source and the system. (Vibration isolator), from an energy point of view, vibration isolation is to change the energy spectrum structure of the vibration source exciting the system to reduce the energy passing through the frequency to suppress vibration. An important feature of phononic crystals is their acoustic bandgap, that is, phononic crystals are functional materials or structures composed of two or more elastic media with periodic structure and elastic wave bandgap characteristics. When the elastic wave propagates in the phononic crystal, it is affected by its internal periodic structure to form a special band gap. The propagation of elastic waves in the bandgap frequency range is suppressed, so phononic crystals have broad application prospects in the field of vibration isolation.

然而,目前使用的蜂窝结构栅格板不具有隔振、隔声性能,不能实现隔振降噪的功能。However, the currently used honeycomb structure grid panels do not have the performance of vibration isolation and sound insulation, and cannot realize the function of vibration isolation and noise reduction.

发明内容Contents of the invention

本发明是为解决目前蜂窝结构栅格板不具有隔振、隔声性能的问题,进而提供一种具有隔振特性的正方形栅格板。The invention aims to solve the problem that the current honeycomb structure grid plate does not have the performance of vibration isolation and sound insulation, and further provides a square grid plate with vibration isolation characteristics.

本发明为解决上述技术问题采取的技术方案是:本发明的一种具有隔振特性的正方形栅格板包括上蒙皮、局域共振型声子晶体隔振组件和下蒙皮;The technical solution adopted by the present invention to solve the above technical problems is: a square grid plate with vibration isolation characteristics of the present invention includes an upper skin, a local resonance type phononic crystal vibration isolation component and a lower skin;

上蒙皮布置在下蒙皮的上方,上蒙皮和下蒙皮之间布置有与二者胶接的局域共振型声子晶体隔振组件,所述局域共振型声子晶体隔振组件由沿横向和纵向周期均匀分布的多个局域共振型声子晶体单元构成,相邻的局域共振型声子晶体单元胶接,每个局域共振型声子晶体单元为各个侧面具有局域振子的正棱柱结构,局域振子为内外双层胶接为一体的环状结构,局域振子胶接在局域共振型隔振声子晶体单元正棱柱框架基体上。The upper skin is arranged above the lower skin, and a local resonance type phononic crystal vibration isolation component glued to the two is arranged between the upper skin and the lower skin. The local resonance type phononic crystal vibration isolation component It is composed of a plurality of local resonance phononic crystal units uniformly distributed along the horizontal and vertical periods, adjacent local resonance phononic crystal units are glued together, and each local resonance phononic crystal unit has a local The regular prism structure of the localized oscillator, the localized oscillator is a ring structure in which the inner and outer double layers are glued together, and the localized oscillator is glued on the regular prism frame matrix of the local resonance type vibration isolation phononic crystal unit.

本发明的有益效果是:一、本发明提出了一种由局域共振型声子晶体组成的具有隔振、隔声性能的正方形栅格板,实现了声子晶体减振结构的轻量化设计,重量减轻60%-80%。二、本发明可以实现对正方形栅格板四个方向上的振动以及垂直于上蒙皮或下蒙皮方向的振动的隔离,可以实现多方向的隔振、隔声,可广泛用于各种精密仪器支撑台、隔振平台等各种平台结构及家装建材领域的隔声设备制造。The beneficial effects of the present invention are: 1. The present invention proposes a square grid plate composed of local resonance phononic crystals with vibration isolation and sound insulation performance, which realizes the lightweight design of the phononic crystal vibration damping structure , 60%-80% weight reduction. 2. The present invention can realize the isolation of the vibration in four directions of the square grid plate and the vibration perpendicular to the direction of the upper skin or the lower skin, can realize multi-directional vibration isolation and sound insulation, and can be widely used in various Manufacture of various platform structures such as precision instrument support tables, vibration isolation platforms, and sound insulation equipment in the field of home decoration and building materials.

附图说明Description of drawings

图1是本发明的立体结构示意图,图2是图1的爆炸结构示意图,图3是本发明的局域共振型声子晶体单元的立体结构示意图。Fig. 1 is a schematic diagram of the three-dimensional structure of the present invention, Fig. 2 is a schematic diagram of the exploded structure of Fig. 1, and Fig. 3 is a schematic diagram of the three-dimensional structure of the local resonance type phononic crystal unit of the present invention.

具体实施方式detailed description

具体实施方式一:结合图1-图3说明,本实施方式的一种具有隔振特性的正方形栅格板包括上蒙皮1、局域共振型声子晶体隔振组件2和下蒙皮4;Specific Embodiment 1: In conjunction with Fig. 1-Fig. 3, a square grid plate with vibration isolation characteristics in this embodiment includes an upper skin 1, a local resonance type phononic crystal vibration isolation component 2 and a lower skin 4 ;

上蒙皮1布置在下蒙皮4的上方,上蒙皮1和下蒙皮4之间布置有与二者胶接的局域共振型声子晶体隔振组件2,所述局域共振型声子晶体隔振组件2由沿横向和纵向周期均匀分布的多个局域共振型声子晶体单元3构成,相邻的局域共振型声子晶体单元3胶接,每个局域共振型声子晶体单元3为各个侧面具有局域振子3-1的正棱柱结构,局域振子3-1为内外双层胶接为一体的环状结构,局域振子3-1胶接在局域共振型隔振声子晶体单元正棱柱框架基体3-2上。The upper skin 1 is arranged above the lower skin 4, and between the upper skin 1 and the lower skin 4 is arranged a local resonance type phononic crystal vibration isolation component 2 glued to the two. The sub-crystal vibration isolation component 2 is composed of a plurality of local resonance type phononic crystal units 3 uniformly distributed along the lateral and longitudinal periods, adjacent local resonance type phononic crystal units 3 are glued together, and each local resonance type acoustic The sub-crystal unit 3 is a regular prism structure with local oscillators 3-1 on each side. The local oscillator 3-1 is a ring structure with inner and outer double layers glued together. The local oscillator 3-1 is glued to the local resonance The vibration-isolation phononic crystal unit is on the regular prism frame substrate 3-2.

具体实施方式二:本实施方式的局域振子3-1为内外双层胶接为一体的正多边形或圆形环状结构。如此设置,结构简单,设计合理,满足实际需要。其它与具体实施方式一相同。Embodiment 2: The local vibrator 3-1 in this embodiment is a regular polygon or circular ring structure in which the inner and outer double layers are glued together. With such arrangement, the structure is simple, the design is reasonable, and the practical needs are met. Others are the same as in the first embodiment.

具体实施方式三:本实施方式的局域共振型隔振声子晶体单元正棱柱框架基体3-2为正方体、正五棱柱或正六棱柱框架基体。如此设置,结构简单,满足实际需要。其它与具体实施方式一或二相同。Embodiment 3: The regular prism frame matrix 3-2 of the local resonance type vibration isolation phononic crystal unit of this embodiment is a cube, regular pentagonal prism or regular hexagonal prism frame matrix. Such arrangement has a simple structure and meets actual needs. Others are the same as in the first or second embodiment.

具体实施方式四:结合图3说明,本实施方式的局域振子3-1的内层结构3-1-2为铅或钢材料。其它与具体实施方式三相同。Embodiment 4: In conjunction with FIG. 3 , the inner layer structure 3-1-2 of the local vibrator 3-1 in this embodiment is made of lead or steel. Others are the same as in the third embodiment.

具体实施方式五:结合图3说明,本实施方式的局域振子3-1的外层结构3-1-1为丁晴橡胶材料。如此设置,丁晴橡胶具有耐磨性较高,耐热性较好,粘接力强的特点,满足设计要求和实际需要。其它与具体实施方式一、二或四相同。Embodiment 5: Referring to FIG. 3 , the outer layer structure 3-1-1 of the local vibrator 3-1 in this embodiment is made of nitrile rubber. With such setting, NBR has the characteristics of high wear resistance, good heat resistance and strong adhesive force, which meets the design requirements and actual needs. Others are the same as the specific embodiment 1, 2 or 4.

具体实施方式六:结合图3说明,本实施方式的局域共振型隔振声子晶体单元正棱柱框架基体3-2由铝或环氧树脂制成。如此设置,铝材料质轻,廉价易得;环氧树脂具有良好的物理、化学性能,它对金属和非金属材料的表面具有优异的粘接强度,满足实际需要。其它与具体实施方式五相同。Embodiment 6: In conjunction with FIG. 3 , the regular prism frame base 3-2 of the local resonance type vibration isolation phononic crystal unit in this embodiment is made of aluminum or epoxy resin. With such an arrangement, the aluminum material is light in weight, cheap and easy to obtain; the epoxy resin has good physical and chemical properties, and it has excellent bonding strength to the surface of metal and non-metal materials, which meets actual needs. Others are the same as in the fifth embodiment.

工作过程:本发明可以实现正方形栅格板四个方向上的振动以及垂直于蒙皮方向的振动,通过上蒙皮1输入,由于有预紧力的局域共振型声子晶体的带隙作用,使得该振动激扰在一定的频带范围声子晶体振动带隙内得到衰减,最终经过局域共振型声子晶体隔振组件2的振动衰减后通过下蒙皮4将该振动传出,从而导致了带隙的产生,从而实现多方向隔振隔声的功能。Working process: the present invention can realize the vibration in four directions of the square grid plate and the vibration perpendicular to the skin direction, input through the upper skin 1, due to the band gap effect of the local resonance phononic crystal with pre-tightening force , so that the vibration excitation is attenuated within a certain frequency range of the phononic crystal vibration band gap, and finally the vibration is transmitted through the lower skin 4 after the vibration of the local resonance type phononic crystal vibration isolation component 2 is attenuated, so that This leads to the generation of a band gap, thereby realizing the function of multi-directional vibration and sound isolation.

Claims (6)

1.一种具有隔振特性的正方形栅格板,其特征在于:所述栅格板包括上蒙皮(1)、局域共振型声子晶体隔振组件(2)和下蒙皮(4);1. A square grid plate with vibration isolation characteristics, characterized in that: the grid plate comprises an upper skin (1), a local resonance type phononic crystal vibration isolation assembly (2) and a lower skin (4 ); 上蒙皮(1)布置在下蒙皮(4)的上方,上蒙皮(1)和下蒙皮(4)之间布置有与二者胶接的局域共振型声子晶体隔振组件(2),所述局域共振型声子晶体隔振组件(2)由沿横向和纵向周期均匀分布的多个局域共振型声子晶体单元(3)构成,相邻的局域共振型声子晶体单元(3)胶接,每个局域共振型声子晶体单元(3)为各个侧面具有局域振子(3-1)的正棱柱结构,局域振子(3-1)为内外双层胶接为一体的环状结构,局域振子(3-1)胶接在局域共振型隔振声子晶体单元正棱柱框架基体(3-2)上。The upper skin (1) is arranged above the lower skin (4), and a local resonance type phononic crystal vibration isolation component ( 2), the local resonance type phononic crystal vibration isolation component (2) is composed of a plurality of local resonance type phononic crystal units (3) uniformly distributed along the horizontal and vertical periods, and the adjacent local resonance type acoustic The sub-crystal units (3) are glued together, and each local resonance type phononic crystal unit (3) is a regular prism structure with local oscillators (3-1) on each side, and the local oscillators (3-1) are internal and external double The layers are glued together into a ring structure, and the local vibrator (3-1) is glued to the regular prism frame base (3-2) of the local resonance type vibration-isolation phononic crystal unit. 2.根据权利要求1所述的一种具有隔振特性的正方形栅格板,其特征在于:局域振子(3-1)为内外双层胶接为一体的正多边形或圆形环状结构。2. A square grid plate with vibration isolation characteristics according to claim 1, characterized in that: the local vibrator (3-1) is a regular polygon or a circular ring structure in which the inner and outer double layers are glued together . 3.根据权利要求1或2所述的一种具有隔振特性的正方形栅格板,其特征在于:局域共振型隔振声子晶体单元正棱柱框架基体(3-2)为正方体、正五棱柱或正六棱柱框架基体。3. A square grid plate with vibration isolation properties according to claim 1 or 2, characterized in that: the local resonance type vibration isolation phononic crystal unit regular prism frame base (3-2) is a cube, regular Pentaprism or regular hexagonal prism frame matrix. 4.根据权利要求3所述的一种具有隔振特性的正方形栅格板,其特征在于:局域振子(3-1)的内层结构(3-1-2)为铅或钢材料。4. A square grid plate with vibration isolation properties according to claim 3, characterized in that: the inner structure (3-1-2) of the local vibrator (3-1) is made of lead or steel. 5.根据权利要求1、2或4所述的一种具有隔振特性的正方形栅格板,其特征在于:局域振子(3-1)的外层结构(3-1-1)为丁晴橡胶材料。5. A square grid plate with vibration isolation characteristics according to claim 1, 2 or 4, characterized in that: the outer structure (3-1-1) of the local vibrator (3-1) is D Sunny rubber material. 6.根据权利要求5所述的一种具有隔振特性的正方形栅格板,其特征在于:局域共振型隔振声子晶体单元正棱柱框架基体(3-2)由铝或环氧树脂制成。6. A square grid plate with vibration isolation properties according to claim 5, characterized in that: the local resonance type vibration isolation phononic crystal unit positive prism frame base (3-2) is made of aluminum or epoxy resin production.
CN201410366127.5A 2014-07-29 2014-07-29 A kind of square grid plate with isolation characteristics Expired - Fee Related CN104141720B (en)

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