SU1045118A1 - Article vibration-acoustic checking method - Google Patents
Article vibration-acoustic checking method Download PDFInfo
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- SU1045118A1 SU1045118A1 SU823392992A SU3392992A SU1045118A1 SU 1045118 A1 SU1045118 A1 SU 1045118A1 SU 823392992 A SU823392992 A SU 823392992A SU 3392992 A SU3392992 A SU 3392992A SU 1045118 A1 SU1045118 A1 SU 1045118A1
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- oscillations
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- defectiveness
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Abstract
СПОСОБ ВИБРОЛКУСТИЧЕСКОГО КОНТРОЛЯ ИЗДЕЛИЙ, заключающийс в TOM, что в контролируемом изделии возбуждают изгибные колебани ,измер ют параметры этих колебаний и по их значени м определ ют дефектность издели , отличающий-с тем, что, С целью повышени точности контрол , возбуждают контролируемое изделие на частоте в два раза ниже его резонансной частоты,, измер ют амплитуды колебаний на частоте возбуждени и резонансной частоте и по . их отношению определ ют дефектность издели .THE METHOD OF VIBROLUCUSTIC CONTROL OF PRODUCTS, consisting in TOM, that in a controlled product excites bending oscillations, measure the parameters of these oscillations and determine the defectiveness of the product by their values, so that, in order to improve the accuracy of control, excite the controlled product at The amplitudes of the oscillations at the excitation frequency and at the resonance frequency and are measured twice as low as its resonance frequency. their ratio is determined by the defectiveness of the product.
Description
I I
1 ibJ пели ,1 ibJ sang,
с . Способ виброакусгического KOHTDOi/ix л изделий осуществл етсй следующим :; образом. -. 11;ь;о вибратора возбуждают изгибные :( колебани с частотой в два раза чи -аезонансной частоте равна практичес-io -iSia 2with . The method of vibroacusgic KOHTDOi / ix l products is carried out as follows:; in a way. -. 11; about vibrator excite bending: (oscillations with a frequency of two times, the chi-asoson frequency is equal to practically io-iSia 2
ют амплитуды колебаний на частоте возбуждени и резонансной частоте и по их огношению определ ют дефектность изВ контролируемом изделии с поноi; e его резонансной частоты .Измер ;п7 амплитуду колебаний издели иа частоте возбуждени и резонансной частоте. Неповрежденное изделие соt5 вершает моногармонические колебани с частотой, совпадающей с частотой зозбуждаошей силы - В этом случае энплитуда колебаний издели не его ;г; ку. чулю, В поврежденном же изделии возникает вление суперрезонанса: при действии гармонической вынуждающей силз в изделии р кроме колебаний с частотой возбуждени f происход т су: пергармонические колебани . Частотаthe amplitudes of the oscillations at the frequency of the excitation and the resonant frequency are determined, and their flaws determine the defectiveness of the monitored product with a pono; e its resonant frequency. Measurement; n7 amplitude of oscillations of the product and the excitation frequency and resonant frequency. An intact product сt5 makes monoharmonic oscillations with a frequency that coincides with the frequency of the driving force — In this case, the amplitude of oscillations of the product is not its; r; ku In the damaged product, a superresonance phenomenon occurs: under the action of the harmonic driving force in the product p, in addition to oscillations with the excitation frequency f, su: perharmonic oscillations. Frequency
этих колебаний кратна частоте возбужр- дени . но наиболь-ша интенсивность у колебаний, частоты которых совпадает с резонансной- частотой колеба „, НИИ изделий и в два паза больше часготы возбуждени . Причем, амплитуда колебаний на резонансной частоте про порциональна степени поврежденности; издели . По отношению измеренных амппитуд определ ют дефектность ичпелир и оценивают ее степень,These oscillations are a multiple of the excitation frequency. but the intensity is greatest at oscillations whose frequencies coincide with the resonant frequency of oscillations, the scientific research institute of products and is two more grooves than the frequency of excitation. Moreover, the amplitude of oscillations at the resonant frequency is proportional to the degree of damage; products. With respect to the measured ampicits, the defectiveness of the ichpelier is determined and its degree is estimated.
:-:- Таким образом,, предлагаемь;: ,nocofi : вибооакустического контрол иа ий: -: - Thus, we propose ;:, nocofi: vibo-acoustic control
позвол ет значительно ПОВЫС1:ТЬ ОЧ allows significantly POVIS1: Tb POC
носГэ контрол путам использсйнни ;плег1и суперрезонанса к H3Ner.ei-iHH амппитуд колебаний издели на -|,;,- возбуждени и рег-онансной,nonsHe control putam is used; plugs and superresonance to H3Ner.ei-iHH ampicits of product oscillations on -,;, - excitation and reg-onance,
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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SU823392992A SU1045118A1 (en) | 1982-02-10 | 1982-02-10 | Article vibration-acoustic checking method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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SU823392992A SU1045118A1 (en) | 1982-02-10 | 1982-02-10 | Article vibration-acoustic checking method |
Publications (1)
Publication Number | Publication Date |
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SU1045118A1 true SU1045118A1 (en) | 1983-09-30 |
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Family Applications (1)
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SU823392992A SU1045118A1 (en) | 1982-02-10 | 1982-02-10 | Article vibration-acoustic checking method |
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SU (1) | SU1045118A1 (en) |
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1982
- 1982-02-10 SU SU823392992A patent/SU1045118A1/en active
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