A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-sided sound energy collection sound insulation wall
The invention provides a double-sided sound energy collection soundproof wall. The double-sided sound energy collection soundproof wall is composed of N 3 * 3 supercell models with point defects. Each supercell model comprises a sound energy collection structure model and eight photonic crystal unit cell structure models; a square hollow frame is arranged on each of the top surface and the bottom surface of a first intermediate plate of the phononic crystal unit cell structure model, and two prismatic table structures of the phononic crystal unit cell structure model are arranged in the two square hollow frames of the first intermediate plate; each prismatic table structure is provided with four prismatic tables of the same structure, each prismatic table is a hollow trapezoidal column and is higher than the square hollow frame where the prismatic table is located, and an opening is formed in the bottom face, facing the second middle plate, of each prismatic table; a second intermediate plate of the sound energy collection structure model is the same as the first intermediate plate in structure, two piezoelectric patches replace two prismatic table structures to be arranged in two square hollow frames of the second intermediate plate, one side of each piezoelectric patch is grounded, and the other side of each piezoelectric patch is provided with an energy recovery terminal. According to the invention, low-frequency noise can be insulated, and energy can be recovered from two sides.
本发明提供一种双面声能收集隔音墙，其由N个含点缺陷3×3超胞模型组成；每一超胞模型均包括一个声能收集结构模型及八个声子晶体单胞结构模型；声子晶体单胞结构模型的第一中间板顶底面上均设有一个正方形空框架，其两个棱台结构设于第一中间板的两个正方形空框架中；每一个棱台结构均有四个结构相同棱台，且每一棱台均为空心梯形柱并高于所在正方形空框架的高度，在朝向第二中间板的底面设有开口；声能收集结构模型的第二中间板与第一中间板结构相同，两个压电片替代两个棱台结构设于第二中间板的两个正方形空框架中，一侧接地及另一侧均设有能量回收端子。实施本发明，可以对低频的噪声进行隔音，且双面回收能量。
Double-sided sound energy collection sound insulation wall
The invention provides a double-sided sound energy collection soundproof wall. The double-sided sound energy collection soundproof wall is composed of N 3 * 3 supercell models with point defects. Each supercell model comprises a sound energy collection structure model and eight photonic crystal unit cell structure models; a square hollow frame is arranged on each of the top surface and the bottom surface of a first intermediate plate of the phononic crystal unit cell structure model, and two prismatic table structures of the phononic crystal unit cell structure model are arranged in the two square hollow frames of the first intermediate plate; each prismatic table structure is provided with four prismatic tables of the same structure, each prismatic table is a hollow trapezoidal column and is higher than the square hollow frame where the prismatic table is located, and an opening is formed in the bottom face, facing the second middle plate, of each prismatic table; a second intermediate plate of the sound energy collection structure model is the same as the first intermediate plate in structure, two piezoelectric patches replace two prismatic table structures to be arranged in two square hollow frames of the second intermediate plate, one side of each piezoelectric patch is grounded, and the other side of each piezoelectric patch is provided with an energy recovery terminal. According to the invention, low-frequency noise can be insulated, and energy can be recovered from two sides.
本发明提供一种双面声能收集隔音墙，其由N个含点缺陷3×3超胞模型组成；每一超胞模型均包括一个声能收集结构模型及八个声子晶体单胞结构模型；声子晶体单胞结构模型的第一中间板顶底面上均设有一个正方形空框架，其两个棱台结构设于第一中间板的两个正方形空框架中；每一个棱台结构均有四个结构相同棱台，且每一棱台均为空心梯形柱并高于所在正方形空框架的高度，在朝向第二中间板的底面设有开口；声能收集结构模型的第二中间板与第一中间板结构相同，两个压电片替代两个棱台结构设于第二中间板的两个正方形空框架中，一侧接地及另一侧均设有能量回收端子。实施本发明，可以对低频的噪声进行隔音，且双面回收能量。
Double-sided sound energy collection sound insulation wall
一种双面声能收集隔音墙
XIANG JIAWEI (author) / ZHONG JIAHUI (author)
2023-01-20
Patent
Electronic Resource
Chinese
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