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A platform for research: civil engineering, architecture and urbanism
Stepped wing-imitating three-way straddle type monorail sound barrier
The invention belongs to the technical field of vibration and noise reduction of rail transit, and discloses a stepped wing-imitating three-way straddle type monorail sound barrier which is arranged on a supporting beam of a straddle type monorail and beside a rail beam and comprises a sound insulation layer and a sound absorption layer. The whole sound barrier is in an arc step shape and is composed of three sections of arc curved surfaces. The sound insulation layer is arranged on the outermost side away from the track beam and is of an integrated structure. The sound absorption layer is arranged on the face, facing the track beam, of the sound barrier and sequentially comprises a wing tip imitating top plate, a comb-shaped inwards-bent top plate and an aluminum fiber sound absorption plate from top to bottom, and an upper layer sound absorption structure, a middle layer sound insulation structure and a lower layer sound absorption structure are arranged on the aluminum fiber sound absorption plate. The wing tip-imitating comb-shaped inwards-bent top plate is of an arc-shaped plate-shaped structure bent towards the track beam, and the edge of the wing tip-imitating comb-shaped inwards-bent top plate is of a comb-shaped structure arranged in a cosine curve mode. Based on the bionic principle, the structure of an owl wing is comprehensively simulated from three directions, the shape is similar to that of a wing, the structure simulates the characteristics of the wing, the structural design is reasonable and simple, the installation is convenient, the shape is attractive, the durability is good, and the noise generated by the operation of the straddle type monorail train can be effectively reduced.
本发明属于轨道交通减振降噪的技术领域，公开了一种阶梯状仿羽翼的三向跨座式单轨声屏障，布置在跨座式单轨的支撑梁之上，轨道梁之旁，包括隔声层和吸声层；声屏障整体呈现为弧形阶梯状，由三段弧形曲面构成；隔声层在远离轨道梁的最外侧，且为一体结构；吸声层设置在声屏障对着轨道梁的一面上，从上到下依次为仿羽翼梢‑梳状内折弯顶板和铝纤维吸声板，铝纤维吸声板上设置了上层吸声结构‑中层隔声结构‑下层吸声结构；仿羽翼梢‑梳状内折弯顶板是弯向轨道梁的弧形板状结构，其边缘是呈余弦曲线排列的梳状结构。本发明基于仿生原理，从三个方向全面模仿猫头鹰翅膀的构造，形状类似于羽翼，结构模仿羽翼特征，结构设计合理简单，安装方便，且形状美观，耐久性好，能够有效地降低跨座式单轨列车运行产生的噪声。
Stepped wing-imitating three-way straddle type monorail sound barrier
The invention belongs to the technical field of vibration and noise reduction of rail transit, and discloses a stepped wing-imitating three-way straddle type monorail sound barrier which is arranged on a supporting beam of a straddle type monorail and beside a rail beam and comprises a sound insulation layer and a sound absorption layer. The whole sound barrier is in an arc step shape and is composed of three sections of arc curved surfaces. The sound insulation layer is arranged on the outermost side away from the track beam and is of an integrated structure. The sound absorption layer is arranged on the face, facing the track beam, of the sound barrier and sequentially comprises a wing tip imitating top plate, a comb-shaped inwards-bent top plate and an aluminum fiber sound absorption plate from top to bottom, and an upper layer sound absorption structure, a middle layer sound insulation structure and a lower layer sound absorption structure are arranged on the aluminum fiber sound absorption plate. The wing tip-imitating comb-shaped inwards-bent top plate is of an arc-shaped plate-shaped structure bent towards the track beam, and the edge of the wing tip-imitating comb-shaped inwards-bent top plate is of a comb-shaped structure arranged in a cosine curve mode. Based on the bionic principle, the structure of an owl wing is comprehensively simulated from three directions, the shape is similar to that of a wing, the structure simulates the characteristics of the wing, the structural design is reasonable and simple, the installation is convenient, the shape is attractive, the durability is good, and the noise generated by the operation of the straddle type monorail train can be effectively reduced.
本发明属于轨道交通减振降噪的技术领域，公开了一种阶梯状仿羽翼的三向跨座式单轨声屏障，布置在跨座式单轨的支撑梁之上，轨道梁之旁，包括隔声层和吸声层；声屏障整体呈现为弧形阶梯状，由三段弧形曲面构成；隔声层在远离轨道梁的最外侧，且为一体结构；吸声层设置在声屏障对着轨道梁的一面上，从上到下依次为仿羽翼梢‑梳状内折弯顶板和铝纤维吸声板，铝纤维吸声板上设置了上层吸声结构‑中层隔声结构‑下层吸声结构；仿羽翼梢‑梳状内折弯顶板是弯向轨道梁的弧形板状结构，其边缘是呈余弦曲线排列的梳状结构。本发明基于仿生原理，从三个方向全面模仿猫头鹰翅膀的构造，形状类似于羽翼，结构模仿羽翼特征，结构设计合理简单，安装方便，且形状美观，耐久性好，能够有效地降低跨座式单轨列车运行产生的噪声。
Stepped wing-imitating three-way straddle type monorail sound barrier
一种阶梯状仿羽翼的三向跨座式单轨声屏障
WEN YONGPENG (author) / HUO ZIWEI (author) / XU ZUHAN (author) / CHENG RUIPING (author) / TU CHUNYUN (author) / LI JIAHAO (author) / ZHOU HUI (author)
2022-11-08
Patent
Electronic Resource
Chinese
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
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