SU122173A1 - Sound system for transmitting mechanical vibrations - Google Patents

Sound system for transmitting mechanical vibrations

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Publication number
SU122173A1
SU122173A1 SU612279A SU612279A SU122173A1 SU 122173 A1 SU122173 A1 SU 122173A1 SU 612279 A SU612279 A SU 612279A SU 612279 A SU612279 A SU 612279A SU 122173 A1 SU122173 A1 SU 122173A1
Authority
SU
USSR - Soviet Union
Prior art keywords
sound guide
mechanical vibrations
sound system
transmitting mechanical
linear
Prior art date
Application number
SU612279A
Other languages
Russian (ru)
Inventor
Б.И. Борщов
В.А. Бунин
С.М. Егудов
Original Assignee
Б.И. Борщов
В.А. Бунин
С.М. Егудов
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Б.И. Борщов, В.А. Бунин, С.М. Егудов filed Critical Б.И. Борщов
Priority to SU612279A priority Critical patent/SU122173A1/en
Application granted granted Critical
Publication of SU122173A1 publication Critical patent/SU122173A1/en

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  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Description

Известные звуководы, предназначенные дл  передачи механических колебаний, обладают недостатком, заключающимс  в том, что нз-за непр молинейности участков или иных неоднородностей формы звуковода (изгибы, ступеньки и т. д.) возникают отражени  колебаний и по вл етс  обратный поток энергии. При этом уменьшаетс  количество энергии, дошедшей но звуководу до потребл юш.его устройства.Known sound guides designed to transmit mechanical vibrations have the disadvantage of not reflecting sections or other inhomogeneities in the shape of the sound guide (bends, steps, etc.), the vibrations are reflected and a reverse flow of energy appears. In this case, the amount of energy that has come down to the sound guide to the consumption of its device is reduced.

Описываемый звуковод принципиально полностью свободен от указанного недостатка, так как в нем достигнуто распространение колебаний только в заданном направлении и полное обтекание колебани ми ненр молинейных участков. Таким образом, в отношении параметров, характеризующих прохождение колебаний, ненр молинейпый звуковод становитс  подобным пр молинейному, что получено путем выполнени  его неоднородньм по структуре, например слоистым, в соответствии с требуемым неоднородным распределением по звуководу параметров, характеризующих скорость распространени  по нему колебаний.. В силу сходства свойств предлагаемого непр молинейного звуковода со свойствами обычного пр молинейного звуковода, его можно считать «квазипр молинейным звуководом.The described sound guide is completely free from this drawback in principle, since it only spreads oscillations in a given direction and completely wraps around oscillations of nonlinear segments. Thus, with respect to the parameters characterizing the passage of oscillations, the irregular sound guide becomes similar to a linear one, which is obtained by performing it non-uniform in structure, for example, layered, in accordance with the required non-uniform distribution of parameters in the acoustic signal characterizing the velocity of propagation of oscillations in it. the strength of the similarity of the properties of the proposed non-linear sound guide with the properties of a conventional linear sound guide, it can be considered a “quasi-linear sound guide.

На фиг. 1 показаны примеры непр молинейных звуководов, отражени  в которых могут быть полностью устранены во всей полосе частот (т. е. в полосе частот, которой обладает вход звуковода дл  заданного типа колебаний). Здесь: а - изгиб звуковода; б - ступенька в звуководе; в - звуковод с произвольно мен ющимс  продольным сечением.FIG. Figure 1 shows examples of non-linear sound guides, the reflections in which can be completely eliminated throughout the entire frequency band (i.e., in the frequency band that the sound guide has for the specified type of oscillation). Here: a is the bend of the sound guide; b - step in the sound guide; c - sound guide with arbitrary longitudinal section.

При конструировании «квазипр молинейного звуковода следует, например, дл  случа  профилей, показанных на чертеже, ввести «конформную систему координат, т. е. систему координат, котора  бы соответствовала конформному отображению пр мой полосы на профиль конструируемого узла. Такое конформное отображение производитс  с помощью известной, в теории функций комплексного переменного фор,мулы Шварца, В частности, дл  поперечных колебаний твердого звуковода в такой «конформной системе координат параметры звуковода должны удовлетвор ть простому соотношениюWhen constructing a “quasi-linear linear sound guide,” for example, in the case of the profiles shown in the drawing, enter a “conformal coordinate system, i.e., a coordinate system that would correspond to the conformal mapping of the straight strip to the profile of the constructed node. Such a conformal mapping is carried out using the well-known, in theory of functions of a complex variable form, Schwartz mules. In particular, for transverse oscillations of a solid sound guide in such a "conformal coordinate system, the sound guide parameters must satisfy the simple relation

SU612279A 1958-11-21 1958-11-21 Sound system for transmitting mechanical vibrations SU122173A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU612279A SU122173A1 (en) 1958-11-21 1958-11-21 Sound system for transmitting mechanical vibrations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU612279A SU122173A1 (en) 1958-11-21 1958-11-21 Sound system for transmitting mechanical vibrations

Publications (1)

Publication Number Publication Date
SU122173A1 true SU122173A1 (en) 1958-11-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU612279A SU122173A1 (en) 1958-11-21 1958-11-21 Sound system for transmitting mechanical vibrations

Country Status (1)

Country Link
SU (1) SU122173A1 (en)

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