1281959 九、發明說明： 【發明所屬之技術領域】 本發明是有關於一種杜爐斗玄 種〜構頻率调整工法，特別是指一 種透過結構上調整，而能調整立έ ^1281959 IX. INSTRUCTIONS: [Technical field to which the invention pertains] The present invention relates to a method for adjusting the frequency of a Duodou bucket, and particularly to a structure that can be adjusted by adjusting the structure.
正I方曰、、、口構之岔度與其固有1L 振頻率的防音結構共振頻率調整工法。 、 【先前技術】 根據許多醫學研究報導_ B 立_ π九叛導顯不，長期處於令人不適的噪 音％境下，可能會引起靜力夯 屹I力哀退、心情煩躁與疲勞、甲狀 腺疾病:心血管疾病與胃腸疾病等各類生心理問題。 I π曰控制技術大致區分成噪音源控帝J、傳播路 徑控制，以及接受者保護等r方 # ^ 斧—方面者手進仃。其中以噪音 專播路徑控制為最主要的噪立 的本日控制手段，主要是於噪音傳 =路徑中，利用加裝適當之吸音材質或聲音遮斷材料，而 子噪音造成吸音及隔音效應，以達到噪音控制目的。 以=音（隔音）技術來說，例如隔音牆，是由無孔、密度 U、、、。構性質等材質所製成，例如鋼筋混 。品立等纟入射於結構物正面之噪音予以反射，因而遮斷 卞曰之傳达’噪音則無法傳送透過至該結構物之反面，此 :為遮曰效應。一般來說’此類結構物對於高頻噪音之防 制效果佳，而對於低頻噪音之防制效果則較差。 以吸音技術來說’例如：消音板，多為多孔性構造、 貝輕且缺乏結構性質箄明立 4 、 曰材料所製成。當噪音入射時， 2曰板，開孔結構内的空氣會開始振動，並反覆壓縮、膨 x將木曰之聲此轉虻成熱能而予以吸收，因而損失消減 5 1281959 ，此即為吸音效應。而且，開孔結構的孔徑大小、開孔率 會對吸音效果造成影響，一般來說，孔徑較大者，對於中 、低頻率之噪音的吸音效果較佳；反之，孔徑較小者，則 對中、高頻率之噪音的吸音效果較好。 可知，具有良好吸音能力的吸音材，通常是不良的遮 曰材，會所產生較大的穿透噪音；相反地，良好的遮音材 雖具有良好的反射效果，能使噪音有效衰減，但對任何頻 • 率特性的ϋ呆音，其吸收效果皆相當差。因此，欲兼顧吸音 與遮音效果而達到良好的噪音控制目的，組合性材料（例如 :聚樹脂泡棉加入乙烯基等）已逐漸被廣泛應用。 不過，目刚發展中的噪音防治技術對於高頻噪音的控 制成效上已顯相當優異，卻仍對低頻噪音（一般指頻率不大 於500Hz者）較束手無策。蓋因依據聲音傳播所遵循的質量 密度法則，欲達到相同噪音衰減值，用以屏蔽2〇〇Hz低頻 噪音的隔音結構體質量，必須是用以屏蔽1〇〇〇Hz高頻噪音 • *的5倍，隔音結構體整體體積龐大，足見低頻噪音於二 制上的高困難度與挑戰。 a而對於已建造完成的隔音結構體來說，於設計當時便 是根據噪音源特十生與所欲保護受音者&置距冑等要件予以 »平估考里。然當噪音源特性有所變動，或是受音者對於防 音標準提昇時，該隔音結構體所要達到的噪音衰減成效必 $需相應調整。蓋因若予以拆除重建，不僅工程浩大且相 當耗時費力，故-般多傾向於對現有隔音結構體進行結構 凋整，以達到調整其噪音衰減成效的目的。 1281959 【發明内容】 、因此，本發明之目的，即在提供一種對既有防音結構 體進仃結構調整，使其整體密度與固有共振頻率產生變化 担以因應入射音源特性及所需提昇噪音衰減值，而能大為 θ振整體噪音防治成效的防音結構共振頻率調整工法。 ^本發明防音結構共振頻率調整工法，是包含一 :平估步驟、-結構調整步驟，以及—密度偵測步驟。於該 ·# 立^ ν驟中’依據—人射音的頻率特性以及所欲提昇的噪 I衰$值需求’對應設計出於結構調整後之—防音結構組 體:密度需求值。於該結構調整步驟中，先將一遮音板鄰 近設置於一既有防音結構體之音源入射面處，再將多數支 撐件架設於該遮音板與該既有防音結構體之音源入射面間 ’接續將-多孔性吸音材灌填於㈣有防音結構體、該遮 θ板與該多數支撐件間。最後，於該密度❹丨步驟中，於 該結構調整步驟過程中，同時對該多孔性吸音材進行灌填 # 密度偵測，待所得偵測密度值等於該密度需求值時，便完 成於結構密度與其固有共振頻率上皆有所調整的該防音結 構組體。 本發明之功效主要在於利用結構調整方式，先 板與支撐件設置於既有防音結構體的音源入射面處，接著 進行多孔性吸音材灌填。當多孔性吸音材的灌填密度等於 所預先評估設定的結構密度需求值時，表示 體整體密度已提昇至預定值，且其固有共振頻率 低（低於入射音頻率），整體於隔音成效上便得以有效增進。 1281959 【實施方式】 有關本發明之前述及复他 〇 1 ，、他技術内容、特點與功效，名 以下配合參考圖式之一個軔 刀欢在 鈥佳貫施例的詳細說明中， 清楚的呈現。 τ 將可 如圖1興圖2所示，太义 丁本發明防音結構共振頻率調整工 法之該較佳實施例，包含71正工 奸估步驟1、一結構調整 ，以及一密度偵測步驟3。The resonance frequency adjustment method of the anti-sound structure of the positive I square, the mouth, and the inherent 1L vibration frequency. [Prior Art] According to many medical research reports _ B Li _ π Nine rebellion, long-term in the uncomfortable noise%, may cause static 夯屹I force resentment, mood irritability and fatigue, thyroid Diseases: cardiovascular diseases and gastrointestinal diseases and other psychological problems. The I π 曰 control technology is roughly divided into the noise source control system J, the propagation path control, and the receiver protection, etc. # ^ Axe - the hand is hand-in-hand. Among them, the noise control channel control is the most important noise control method of the day, mainly in the noise transmission path, using the appropriate sound absorbing material or sound to interrupt the material, and the sub noise causes the sound absorption and sound insulation effect, Achieve noise control purposes. In the case of the sound (sound insulation) technology, for example, the sound insulation wall is made of non-porous, density U, ,, . Made of materials such as reinforced materials, such as reinforced concrete. When the product is equal to the noise incident on the front side of the structure, it is reflected, so that the noise is transmitted. The noise cannot be transmitted to the opposite side of the structure. This is a concealing effect. In general, such structures have a good effect on high frequency noise and a low frequency noise. In terms of sound absorbing technology, for example, the sound absorbing panel is mostly made of a porous structure, a light shell, and a lack of structural properties. When the noise is incident, the air inside the open structure will start to vibrate, and the compression and expansion will convert the sound of the raft into thermal energy and absorb it. Therefore, the loss is reduced by 5 1281959, which is the sound absorbing effect. . Moreover, the aperture size and aperture ratio of the aperture structure may affect the sound absorbing effect. Generally speaking, those with larger apertures have better sound absorption effects for medium and low frequency noise; conversely, those with smaller apertures are correct. Medium and high frequency noise has better sound absorption. It can be seen that a sound absorbing material with good sound absorbing ability is usually a poor concealer material, which will generate a large penetration noise; on the contrary, a good sound absorbing material has a good reflection effect, can effectively attenuate the noise, but for any The audible and inaudible characteristics of the frequency-rate characteristics are quite poor. Therefore, in order to achieve good noise control for both sound absorption and sound insulation, combined materials (for example, poly resin foam added to vinyl, etc.) have been widely used. However, the newly developed noise control technology has been excellent in the control of high frequency noise, but it still has no way to deal with low frequency noise (generally referred to as frequency less than 500 Hz). According to the mass density rule followed by sound propagation, to achieve the same noise attenuation value, the quality of the sound-insulating structure used to shield 2 Hz low-frequency noise must be used to shield 1 Hz high-frequency noise. 5 times, the overall size of the sound-insulating structure is huge, which shows the high difficulty and challenge of low-frequency noise on the second system. a. For the sound-insulating structure that has been built, it is designed to be based on the noise source and the desired protector & distance. However, when the characteristics of the noise source are changed, or when the sounder is improved on the soundproofing standard, the noise attenuation effect of the soundproof structure must be adjusted accordingly. If Gain is to be demolished and rebuilt, it is not only a huge project, but also a lot of time and effort. Therefore, it tends to structurally withstand the existing sound-insulating structure to achieve the purpose of adjusting its noise attenuation. 1281959 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an adjustment to the structure of an existing soundproof structure such that the overall density and the natural resonant frequency are varied to accommodate the characteristics of the incident source and the desired noise attenuation. The value of the sound-proof structure of the anti-sound structure can be greatly improved by the overall noise control effect of the θ-vibration. The method for adjusting the resonance frequency of the anti-sound structure of the present invention comprises: a flattening step, a structural adjustment step, and a density detecting step. In the "#立^ 骤", the basis is based on the frequency characteristics of the human radio and the noise demand value required to be improved. In the structural adjustment step, a sound absorbing panel is disposed adjacent to a sound source incident surface of the existing soundproof structure body, and then a plurality of support members are disposed between the sound absorbing panel and the sound source incident surface of the existing soundproof structure body. Subsequently, the porous sound absorbing material is filled in (4) the soundproof structure, the θ plate and the plurality of supports. Finally, in the density ❹丨 step, during the structural adjustment step, the porous sound absorbing material is simultaneously filled with the density detection, and when the detected density value is equal to the density demand value, the structure is completed. The soundproof structure group is adjusted in density and its natural resonant frequency. The effect of the present invention is mainly to utilize a structural adjustment method in which the first plate and the support member are disposed at the sound source incident surface of the existing soundproof structure body, followed by the porous sound absorbing material filling. When the filling density of the porous sound absorbing material is equal to the pre-evaluated structural density requirement value, it indicates that the bulk density of the body has been raised to a predetermined value, and the natural resonance frequency is low (below the incident audio frequency), and the overall sound insulation effect is achieved. It can be effectively improved. 1281959 [Embodiment] With regard to the foregoing and the following, the technical contents, features and functions of the present invention, the following is a clear description of a knives in the detailed description of the application of the reference pattern. . τ will be as shown in Figure 2, Figure 2, the preferred embodiment of the method for adjusting the resonant frequency of the soundproof structure of the present invention, comprising 71 positive work evaluation step 1, a structural adjustment, and a density detecting step 3 .
首先，於該評估步驟1中，必須依據一入射音的頻率 特性’以及-防音結_ 4整體所欲再為提昇的噪音 值需求，對應設計出於结槿胡敫你^〜 °構調整後所得一防音結構組體4 的密度需求值。 另明配口圖3所不，接著，於該結構調整步驟2中， 先將-遮音板41對應地鄰近立置於欲調整結構之既有防音 結構體42的音源入射面421處；再將多數支撐件ο均句 地架設於該遮音板42與該既有防音結構體42之音源入射 面421間；接續’將一多孔性吸音材44藉強力氣流（高壓空 氣）灌填於該既有防音結構體42之音源入射面421、該遮= 板41與忒多數支撐件43間，直至充填達所需要之密度要 求值為止，便可初步建造完成該防音結構組體4。本實施例 中，該遮音板41可以是石膏板、鐵板、厚木板…·等；支撐 件43可以是磚塊、混凝土塊、木塊、塑膠塊、橡膠塊、纖 維塊…等，該多孔性吸音材44可以是為粉狀物、粒狀物（如 玻璃棉粒、發泡塑膠粒）、短纖維物…或是此等任二種或二 種以上之混合物等。 1281959 另-方面，於該錢_步„驟3中，必須對該多孔性 吸音材44進行灌填密度_ ’當所測得偵測密度值等於所 評估設計的密度需求值時，表*此時結構調整後的防音結 構組體4於密度與其固有共振頻率上已達設計需求。 也就是說，結構調整後的防音結構組體4，因遮音板 41、支撐件43與多孔性吸音材44 之增設，其整體厚度與First of all, in the evaluation step 1, it must be based on the frequency characteristic of an incident sound and the anti-sound knot _ 4 as a whole is required for the increased noise value, and the corresponding design is adjusted for the knot. The density requirement value of the obtained soundproof structure group 4. In addition, in the structure adjustment step 2, the sound-absorbing panel 41 is correspondingly placed adjacent to the sound source incident surface 421 of the existing soundproof structure 42 of the structure to be adjusted; A plurality of support members are erected between the sound insulating plate 42 and the sound source incident surface 421 of the existing soundproof structure 42; and a porous sound absorbing material 44 is filled by the strong air flow (high pressure air). The soundproofing structure assembly 4 can be initially constructed by the sound source incident surface 421 of the soundproof structure 42 between the masking plate 41 and the plurality of support members 43 until the required density requirement is filled. In this embodiment, the sound insulating board 41 may be a gypsum board, an iron board, a thick board, etc.; the supporting member 43 may be a brick, a concrete block, a wooden block, a plastic block, a rubber block, a fiber block, etc., the porous The sound absorbing material 44 may be a powder, a granule (such as glass wool granules, foamed plastic granules), a short fiber material, or a mixture of two or more of these. 1281959 In another aspect, in the money step _3, the porous sound absorbing material 44 must be filled with density _ 'when the measured detection density value is equal to the density demand value of the evaluated design, the table * this The structurally adjusted soundproof structure assembly 4 has reached the design requirement in terms of density and its natural resonant frequency. That is, the structurally adjusted soundproof structure assembly 4 is composed of the sound insulating plate 41, the support member 43, and the porous sound absorbing material 44. Addition, its overall thickness and
密度相對增大，特別是其整體固有共振頻率因密度增大（即 質重增大）而更為降低（即小於入射音頻率）。因此，整體於 隔音與吸音成效上自可更為增進，具備所預定噪音衰減能 力，噪音控制成效更佳。 特別要說明的是，由於結構調整時所利用多孔性吸音 材44,運用其所能呈現結構密度上之鬆散與緊實程度間的 可恢復性調整，而於該防音結構組體4之灌填密度控制與 固有共振頻率上顯現極大的結構調整彈性及其便利性。The density is relatively increased, especially as the overall natural resonant frequency is further reduced (i.e., less than the incident audio frequency) due to an increase in density (i.e., an increase in mass). As a result, the overall sound insulation and sound absorption performance can be improved, with the predetermined noise attenuation capability, and the noise control effect is better. In particular, since the porous sound absorbing material 44 is used in the structural adjustment, the recoverability adjustment between the looseness and the compactness of the structural density can be exhibited, and the filling of the soundproof structure assembly 4 is performed. Density control and natural resonance frequency show great structural adjustment flexibility and its convenience.
歸納上述，本發明防音結構共振頻率調整工法，利用 彈性度佳與便利性佳的結構調整方式，先將遮音板41與支 撐件43設置於既有防音結構體42的音源入射面42丨處， 料進行多孔性吸音材44灌填。當多孔性吸音材Μ的灌 填密度等於所預先評估設定的結構密度需求值時，表示該 防音結構組體4整體密度已提昇至預定值，且其固有共振 頻率也因而降低，整體於隔音成效上便得以有效增進，故 本發明確實可達到其功效目的。 准以上所述者，僅為本發明之較佳實施例而已，當不 月匕以此限疋本發明實施之範圍，即大凡依本發明申請專利 1281959 皆仍 範圍及發明說明内容所作之簡單的等效變化與修飾 屬本發明專利涵蓋之範圍内。 【圖式簡單說明】 、圖1是一步驟圖，說明本發明防音結構共振頻率調整 工法之一較佳實施例； 正 圖2是該較佳實施例的一流程說明圖；以及 Η 3疋一結構剖視圖’說明該較佳實施例之_防音社 構體於結構調整後之態樣。In summary, in the above-mentioned soundproof structure resonance frequency adjustment method of the present invention, the sound insulating plate 41 and the support member 43 are first disposed on the sound source incident surface 42 of the existing soundproof structure 42 by using a structural adjustment method with good elasticity and convenience. The porous sound absorbing material 44 is filled. When the filling density of the porous sound absorbing material 等于 is equal to the pre-evaluated structural density requirement value, it indicates that the overall density of the soundproof structure group 4 has been raised to a predetermined value, and the natural resonance frequency thereof is also reduced, and the overall soundproof effect is achieved. The above can be effectively improved, so the present invention can indeed achieve its efficacy purpose. The above is only the preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the patent application of the patent application 1281959 is still simple in scope and description of the invention. Equivalent variations and modifications are within the scope of the invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a step diagram illustrating a preferred embodiment of a method for adjusting a resonant frequency of a soundproof structure of the present invention; FIG. 2 is a flow explanatory diagram of the preferred embodiment; The structural cross-sectional view ' illustrates the aspect of the structure of the soundproofing body of the preferred embodiment after structural adjustment.
10 1281959 【主要元件符號說明】 1 評估步驟 42 既有防音結構體 2 結構調整步驟 43 支撐件 3 密度偵測步驟 44 多孔性吸音材 4 防音結構組體 41 遮音板10 1281959 [Explanation of main component symbols] 1 Evaluation procedure 42 Existing soundproof structure 2 Structural adjustment procedure 43 Support 3 Density detection procedure 44 Porous sound absorbing material 4 Soundproof structure group 41 Sound insulation board