1289667 九、發明說明： 【發明所屬之技術領域】 本發明係提供一種黑 g值衝擊試驗系統及一種高g值衝擊試 驗方法’係利用物體相對遁4 Λ I r-1 AOr ^ τ運動所造成的相同衝擊效應及產生相等 加速度的原理，以間接的大、1曰？ ^ Α(_ q万法量測物體承受南g值之能力。 【先前技術】 現今科技’更快速、更精準一直是科學家及工程師 們-直努力企望追求的目標。好產品在使用、搬運及運輸過程 中皆會遭遇衝擊㈣所累積之損害，產品所產生的損 害起因於慣 14i里所產生的過度内部應力。由於慣性力量正比於加速度(力量 貪里X加速度）’衝擊程度也就由最大容許加速度值所決定，亦 Ir到底可承文多少§值（lg=9.8m/see2)。在航太科技上舉凡 太粒（debns)對於衛星及太空飛行器等的高速撞擊產生的 衷損失 w平估（FODE，F〇reign object Damage Evaluation)、力α 力 ;二、貝航組段間的爆炸脫節衝擊或者在軍事研究上如碰撞（包括引 。，穿甲）試驗、爆炸衝擊試驗、發動機推進系統試驗以及民生 二業上安全氣囊的衝擊、高速鐵路行駛車輛遭受飛石撞擊的安全 #估等工作上’高S值量測工作一直是評估高速終端效應中不可 或缺的工作。現行高g值量測工作通常是以衝擊試驗，即以衝擊 β式驗機將待測物夾置於試驗機預劃位置，並使待測物加速下墜並 瞬間停止的方式，或是以滑軌試驗 (rocket-powered-sled test) ? 即在滑轨上試驗進行高速撞擊後停止，來量測待測物體之抗高g 值性能。其中，前者因受設備功能所限制，其量測g值範圍僅能 限定在一有效區間内進行量測，而後者又因測試滑板車於滑軌滑 4亍卞產生的振動以及試驗效盈等問題’常用於較大之系統或次系 統承受g值之試驗工作上，較無法針對小型元件承受g值進行評 伯r ’且以上兩者之設備裝置及作業成本均高。 1289667 【發明内容】 本發明的主要目的即針對上述之缺點，提出撞擊材料產生減 加速度的設計，藉此評估待測物體承受之高g值，並同時可用於 提供作為物體承受高g值後之各項性能驗證工作。 本發明係關於一種高g值衝擊試驗系統，包含： 一加速度供應裝置，係可提供加速度； 一加速度感應裝置，係可感應物體產生之加速度值； 一加速度傳遞裝置，係可傳遞加速度供應裝置提供之加速 度給待測物，其中待測物係固定於前述加速度傳遞裝置中；及 一資料擷取及分析裝置，係可擷取及分析加速度感應裝置 之資訊。 本發明之另一目的係提供一種高g值衝擊試驗方法，包含 下列步驟： (a) 將待測物固定於加速度傳遞裝置中； (b) 提供加速度給前述加速度傳遞裝置，使加速度藉由加 速度傳遞裝置傳遞給待測物；及 (c) 量測前述待測物所受到的加速度。 本發明之再一目的係提供一種利用前述高g值衝擊試驗系統 進行之高g值衝擊測試方法，包含下列步驟： (a) 將待測物及加速度感應裝置固定於加速度傳遞裝置中； (b) 利用加速度供應裝置提供一具有加速度之物體撞擊加 速度傳遞裝置，該加速度傳遞裝置在遭受撞擊同時傳遞相當之 壓力給前述加速度感應裝置及待測物；及 (c) 分析前述加速度感應裝置所承受之加速度，並藉由預先 緣製之距離-加速度校正曲線，計算出待測物所承受之加速度。 本發明係利用物體相對運動所造成的相同衝擊效應及產生 相等加速度的原理，以間接的方法量測物體承受高g值之能 1289667 力，本發明之方法可提供待測物100,000g以上之加速度值，可 補強傳統衝擊試驗機或滑執試驗之不足，提供一種經濟且有效 之高g值衝擊試驗方法。 【實施方式】 跌落試驗（drop test)是利用待測物體自高處自由落下後，其 撞擊不同材料後藉由待測物内所嵌入之加速度感應器 (accelerometer)及連結訊號線將量得之壓力轉換為電訊號後由 資料處理系統換算出所作用的g值。此種作法在需要較高g值 (大於10,000g)時，因實驗環境及空氣阻力等限制幾無法實 現。本發明的概念係使用物體相對運動所造成的相同的衝擊效 應及產稱相等的加速度的方式，並應用搶擊子彈所產生的高 速、質輕等優點，以經濟簡便的方式製造高g值測試環境。 本發明係提供一種高g值衝擊試驗系統，包含：一加速度 供應裝置，係可提供加速度；一加速度感應裝置，係可感應物 體產生之加速度值；一加速度傳遞裝置，係可傳遞加速度供應 裝置提供之加速度給待測物，其中待測物係固定於前述加速度 傳遞裝置中；及一資料擷取及分析裝置，係可擷取及分析加速度 感應裝置之資訊。 在本發明中，加速度供應裝置係可為任何可提供g值之裝 置。例如，在本發明之一實施態樣中，前述加速度供應裝置包 含手搶及子彈，其中手槍係用於提供子彈動能，使子彈能加速 撞擊加速度傳遞裝置，進而將加速度傳遞給待測物，在此實施 態樣中，加速度供應裝置可在加速度傳遞裝置上產生單衝擊形 式之瞬間波。 在本發明中，加速度傳遞裝置係為可承受加速度供應裝置 撞擊之物質，並且該物質可將承受加速度供應裝置撞擊產生之 衝擊波傳遞給待測物。前述加速度傳遞裝置一般而言為一高硬 1289667 度材料’較佳係為一剛性體(rigid body)。在本發明之/實施態 樣中’ W述加速度傳遞裝置係為厚8〇mrn之低碳鋼板。 A述力σ速度供應裝置撞擊加速度傳遞裝置產生之衡擊波包 合’但不限於’單衝擊波或半正弦波、方波、三角波等規則性 波形。前述衝擊波之波形係可視需要藉由選擇加速度供應裝置 及加速度傳遞裝置而改變。 在本發明中’加速度感應裝置係為可感測所在位置承受之 加速度的裝置。在本發明之一實施態樣中，該加速度感應裝置 係固定於前述加速度提供裝置中。在本發明之另一實施態樣 該加速度感應裝置係可固定於加速度傳遞裝置中，其中加 速度傳遞裝置之質量較佳係為大於加速度感應裝置質量之十 倍。 在本發明之一較佳具體實施態樣中，前述加速度感應裝置 及待測物係置放於加速度傳遞裝置之孔位中，孔位與待測物及 孔位與加速度感應裝置之間隙較佳係控制在0.1mm以下，前述 加速度感應裝置並可進一步藉由一背板(pressure plate)與夾具 將待測物與加速度傳遞裝置夾緊，藉此降低誤差。 在本發明中，資料擷取及分析裝置係為任何可擷取及分析 加速度感應裝置之資訊的裝置，該資料擷取及分析系統係可依 加速度感應裝置之型式而選擇或設計。在本發明之一實施態樣 中，前述資料擷取及分析系統係由示波器、個人電腦及資料擷 取卡組成。 在一實施態樣中，本發明之加速度感應裝置係將撞擊時產 生之壓縮力（compression)轉換為電壓輸出之分析系統，再藉由 分析系統中的内部程式轉換為對等之g值’並輸出於分析系統 的監視器上或由紀錄裝置紀錄量測結果。 本發明之高g值衝擊試驗系統係可進一步包含一速度量測 1289667 輔助裝置，例如光閘，係可用於量測在一指定區間卡物體之行 進速度。 本發明之另一目的係提供一種高g值衝擊試驗方法，包含 下列步驟： (a) 將待測物固定於加速度傳遞裝置中； (b) 提供加速度給前述加速度傳遞裝置，使加速度藉由加速 度傳遞裝置傳遞給待測物；及 (c) 量測前述待測物所受到的加速度。 在一具體實施態樣中，本發明之高g值衝擊試驗方法包含 下列步驟：首先，將待測物及加速度感應裝置固定於加速度傳 遞裝置（例如，鋼板）中；接著，利用加速度供應裝置提供加速 度，換言之，使一具有加速度之物體撞擊加速度傳遞裝置，該 加速度傳遞裝置在遭受撞擊同時傳遞相當之壓力給加速度感應 裝置及待測物；分析加速度感應裝置所承受之加速度，並藉由 預先繪製之距離-加速度校正曲線，計算出待測物所承受之加速 度。 本發明之高g值衝擊試驗系統係可產生100,000g以上之加 速度值，藉由本發明之高g值衝擊試驗方法及系統可測試物體 在高g環境之耐衝擊性，本發明可補強傳統衝擊試驗機或滑執 試驗之不足，提供一種經濟且有效之高g值衝擊試驗系統及方 法。 下列實施例係用於進一步說明本發明之優點，並非用於限制 本發明之申請專利範圍。 實施例 系統設計 本實施例使用之高g值衝擊試驗系統1〇〇係如第一圖所示。 1289667 本實施例係以中正理工學院彈道測試館所已具備之九釐米口徑 手槍發射器11及子彈（圖未顯示）作為加速度供應裝置，其中手 槍發射器係用於提供射擊子彈的動能來源，本實施例採一般常用 之中空柱藥，其裝藥量可依測試量測時所需求的g值加以調整其 裝藥種類及重量。彈道途中可另行加裝辅助裝置（如光閘10等） 以量測在一指定區間中射擊子彈之速度，可依此掌握裝藥量之穩 定程度，減少系統誤差。本實施例係以子彈作為加速度值來源， 8.0mm厚低碳鋼板12(SAE-1020)為加速度傳遞裝置，其中鋼板重 量需大於與加速感應器的重量十倍以上，否則將影響到量測所得 到之加速度以及共振頻率，如式（1)及（2)所示。1289667 IX. Description of the invention: [Technical field to which the invention pertains] The present invention provides a black g-value impact test system and a high g-value impact test method, which are caused by the movement of an object relative to 遁 4 Λ I r-1 AOr ^ τ The same impact effect and the principle of generating equal acceleration, indirect large, 1 曰? ^ Α (_q 10,000 method to measure the ability of an object to withstand the south g value. [Prior Art] Today's technology 'faster, more accurate has always been the goal that scientists and engineers are trying to pursue. Good products are used, handled and During the transportation process, the damage accumulated by the impact (4) will be encountered. The damage caused by the product is caused by the excessive internal stress generated by the habit 14i. Since the inertial force is proportional to the acceleration (power acceleration, the X acceleration), the impact degree is also the largest. The allowable acceleration value is determined, and how much § value can be written by Ir (lg=9.8m/see2). In the aerospace technology, the debns are the loss of the high-speed impact of satellites and spacecraft. Estimate (FODE, F〇reign object Damage Evaluation), force α force; 2. Explosion disjoint impact between Bayer Group or collision in military research (including lead, armor piercing) test, explosion impact test, engine propulsion The system test and the impact of the airbag on the Minsheng Second Industry, the safety of the high-speed railway vehicles suffering from the impact of flying stones, and other work on the 'high S value measurement work has been evaluated The indispensable work in the fast terminal effect. The current high g value measurement work is usually an impact test, that is, the impact test is placed on the test machine pre-scoring position by the impact β test machine, and the test object is accelerated to fall. And the way to stop instantaneously, or the rocket-powered-sled test, that is, the test on the slide rail to stop after high-speed impact, to measure the anti-high g value performance of the object to be tested. Limited by the function of the device, the range of measured g values can only be measured within a valid interval, and the latter is often used for testing the vibration generated by the scooter on the slide rail and the test effect. In the test work of the larger system or the secondary system with g value, it is less able to evaluate the g value of the small component and the equipment cost and operation cost of the above two are high. 1289667 [Summary of the Invention] The aim is to propose the design of the deceleration of the impact material for the above shortcomings, thereby evaluating the high g value of the object to be tested, and at the same time providing the performance verification work for the object to withstand the high g value. The present invention relates to a high g value impact test system comprising: an acceleration supply device for providing acceleration; an acceleration sensing device for sensing an acceleration value generated by an object; and an acceleration transfer device for transmitting acceleration supply The acceleration provided by the device is applied to the object to be tested, wherein the object to be tested is fixed in the acceleration transmission device; and a data acquisition and analysis device is capable of capturing and analyzing the information of the acceleration sensing device. Another object of the present invention is A high g value impact test method is provided, comprising the steps of: (a) fixing the object to be tested in the acceleration transfer device; (b) providing acceleration to the acceleration transfer device, and transmitting the acceleration to the object to be tested by the acceleration transfer device And (c) measure the acceleration to which the aforementioned object is subjected. A further object of the present invention is to provide a high g value impact test method using the aforementioned high g value impact test system, comprising the following steps: (a) fixing the object to be tested and the acceleration sensing device to the acceleration transfer device; Providing an acceleration-collecting object impact acceleration transmission device, wherein the acceleration transmission device transmits a considerable pressure to the acceleration sensing device and the object to be tested while being subjected to the impact; and (c) analyzing the acceleration sensing device Acceleration, and the acceleration of the object to be tested is calculated by the pre-edge distance-acceleration calibration curve. The invention utilizes the same impact effect caused by the relative motion of the object and the principle of generating equal acceleration, and measures the energy of the object with high g value by an indirect method, and the method of the invention can provide an acceleration of more than 100,000 g of the object to be tested. The value can reinforce the shortcomings of the traditional impact tester or the slip test, providing an economical and effective high g value impact test method. [Embodiment] The drop test is to use the accelerometer embedded in the object to be tested and the connected signal line after the object to be tested is free to fall from a height. After the pressure is converted into a signal, the value of the applied g is converted by the data processing system. This practice cannot be achieved due to limitations in the experimental environment and air resistance when a higher g value (greater than 10,000 g) is required. The concept of the invention uses the same impact effect caused by the relative motion of the object and the manner of producing equal acceleration, and applies the advantages of high speed and light weight generated by the sniper bullet to manufacture a high g value test in an economical and convenient manner. surroundings. The invention provides a high g value impact test system, comprising: an acceleration supply device for providing acceleration; an acceleration sensing device for sensing an acceleration value generated by an object; and an acceleration transfer device for transmitting an acceleration supply device The acceleration is given to the object to be tested, wherein the object to be tested is fixed in the acceleration transmission device; and a data acquisition and analysis device is capable of capturing and analyzing the information of the acceleration sensing device. In the present invention, the acceleration supply means can be any device that provides a value of g. For example, in an embodiment of the present invention, the acceleration supply device includes a hand grab bullet, wherein the pistol is used to provide bullet kinetic energy, so that the bullet can accelerate the impact acceleration transmission device, thereby transmitting acceleration to the object to be tested. In this embodiment, the acceleration supply device can generate a transient wave in the form of a single shock on the acceleration transfer device. In the present invention, the acceleration transmitting means is a substance which can withstand the impact of the acceleration supply means, and the substance can transmit the shock wave generated by the impact of the acceleration supply means to the object to be tested. The aforementioned acceleration transfer device is generally a high-hard 1289667 degree material 'preferably a rigid body. In the embodiment/embodiment of the present invention, the acceleration transmission device is a low carbon steel plate having a thickness of 8 mm. The force σ velocity supply device collides with the acceleration wave transmission device to generate a scale wave inclusion 'but not limited to' a single shock wave or a regular waveform such as a half sine wave, a square wave, or a triangular wave. The waveform of the shock wave described above may be changed by selecting an acceleration supply device and an acceleration transfer device as needed. In the present invention, the 'acceleration sensing device is a device that senses the acceleration that the position is subjected to. In an embodiment of the invention, the acceleration sensing device is fixed in the acceleration providing device. In another embodiment of the invention, the acceleration sensing device can be fixed in the acceleration transmitting device, wherein the acceleration transmitting device preferably has a mass greater than ten times the mass of the acceleration sensing device. In a preferred embodiment of the present invention, the acceleration sensing device and the object to be tested are placed in the hole position of the acceleration transmission device, and the gap between the hole position and the object to be tested and the hole position and the acceleration sensing device is better. The system is controlled to be less than 0.1 mm, and the acceleration sensing device can further clamp the object to be tested and the acceleration transmitting device by a pressure plate and a clamp, thereby reducing errors. In the present invention, the data acquisition and analysis device is any device that can capture and analyze the information of the acceleration sensing device. The data acquisition and analysis system can be selected or designed according to the type of the acceleration sensing device. In one embodiment of the invention, the data acquisition and analysis system consists of an oscilloscope, a personal computer, and a data capture card. In one embodiment, the acceleration sensing device of the present invention converts a compression generated during an impact into an analysis system for voltage output, and converts it into an equivalent g value by an internal program in the analysis system. Output to the monitor of the analysis system or record the measurement results by the recording device. The high g value impact test system of the present invention may further comprise a speed measurement 1289667 auxiliary device, such as a shutter, which can be used to measure the travel speed of a card in a specified interval. Another object of the present invention is to provide a high g value impact test method comprising the steps of: (a) fixing a test object to an acceleration transfer device; (b) providing acceleration to the acceleration transfer device to accelerate the acceleration by acceleration The transfer device transmits the object to be tested; and (c) measures the acceleration received by the object to be tested. In a specific embodiment, the high g value impact test method of the present invention comprises the following steps: first, fixing the object to be tested and the acceleration sensing device to an acceleration transfer device (for example, a steel plate); and then providing the acceleration supply device Acceleration, in other words, causes an object with acceleration to strike the acceleration transfer device, which transmits a considerable pressure to the acceleration sensing device and the object to be tested while being subjected to the impact; analyzes the acceleration experienced by the acceleration sensing device, and pre-renders The distance-acceleration calibration curve calculates the acceleration experienced by the object to be tested. The high g value impact test system of the present invention can generate an acceleration value of 100,000 g or more, and the high g value impact test method and system of the present invention can test the impact resistance of an object in a high g environment, and the present invention can reinforce the conventional impact test. Insufficient machine or slip test, providing an economical and effective high g value impact test system and method. The following examples are intended to further illustrate the advantages of the invention and are not intended to limit the scope of the invention. EXAMPLES System Design The high g value impact test system 1 used in this example is shown in the first figure. 1289667 This embodiment is a nine-centimeter caliber pistol launcher 11 and a bullet (not shown) already provided by the ballistic test hall of the Zhongzheng Institute of Technology as an acceleration supply device, wherein the pistol launcher is used to provide a source of kinetic energy for shooting bullets. In the examples, the commonly used hollow column drug is used, and the charge amount can be adjusted according to the g value required for the test measurement. An auxiliary device (such as shutter 10, etc.) can be added during the ballistics to measure the speed of shooting bullets in a specified interval, so that the stability of the charge can be controlled and the system error can be reduced. In this embodiment, the bullet is used as the source of the acceleration value, and the 8.0 mm thick low carbon steel plate 12 (SAE-1020) is an acceleration transmission device, wherein the weight of the steel plate needs to be more than ten times the weight of the acceleration sensor, otherwise the measurement will be affected. The obtained acceleration and resonance frequency are as shown in equations (1) and (2).
其中， 代表包含加速感應器的質量 %代表部分加速度感應器嵌入結構的部分等效質量 \代表包含加速感應器時量得的加速度值 义代表無加速感應器時的加速度值 人代表包含加速感應器時量得的共振頻率 /5代表無加速感應器時量得的共振頻率 鋼板12之背面預先鑽出加速感應器（Β&Κ-8309，壓電式， Maximun shock acceleration 土 100,000g)及待測物之孔位 17，並將 加速感應器15及待測物16分別置入特定孔位17中，測試前將加 速感應器15經訊號線13連接至訊號放大器（2635電荷放大器， High sensitivity up to 10V/pc)，放大訊號後饋入資料擷取及分析 1289667 系統14 (由HP54501A示波器、個人電腦及GPIB NI-488.2資料 擷取卡組成），最後於個人電腦終端機上輸出壓縮強度（已轉換 為電壓型態）與時間關係圖及換算後之g值等數位資料。進行測 試時，需儘可能的將加速感應器15及待測物16儘可能與實驗所 採用的鋼板12爽持設計成為一剛性體（rigid body)，以降低此部分 可能造成之實驗誤差，本實驗所採用是將待測物16與鑽孔間隙控 制在0.1 mm以下，並使用背板(pressure plate)18與夾具將待測物 16與鋼板12夾實，如此可降低測試誤差。前述鋼板12之預設孔 位17可視需要調整其數目及位置，可同時放置一個以上之待測物 16供高g值衝擊試驗，相較於習知高g值之衝擊測試技術具有更 經濟之效益。 其中資料擷取及分析系統係依加速感應器的形式而撰寫轉 換程式，如本實驗所採用之B&K-8309型係利用撞擊時產生之壓 縮力（compression)經加速感應器轉換為電壓輸出至資料擷取及分 析系統14，再藉由其預先設訂之放大倍率等内部程式，將之轉換 為對等之g值，並輸出於資料擷取及分析系統14的監視器上或由 記錄裝置紀錄量測結果。除此之外，可將槍擊後加速感應器所測 得之g力與彈著中心和感應器距離，繪出相同裝藥量（裝藥量之 誤差以光閘10量測彈速加以判讀）下之距彈著中心距離與g值之 對應圖，再依此換算出距離彈著中心不同距離下待測物所承受的 g值。 測試方法 本實施例採用了九釐米手槍為發射器，並依所需終端g值範 圍需求，設計2_7及2.8克兩種裝藥重量之中空柱藥，火藥以電 子微量計度量出所需藥量後，將火藥填入後立即將彈筒與彈頭以 封口機加以封實。每一次射擊後，需再次更換待測物與固定加速 11 1289667 感應器並重新夾持。經多次射擊後將各次彈著中心以鑽孔機鑽 孔，再以游標卡尺量測彈著中心與加速規距離可得到搶擊試驗在 一定裝藥量下彈著距離與g值的關係圖，如第二圖所示。以本實 驗而言，當採0.28克之黑火藥重量時，由光閘所量得的射速為 343.3土0.3 m/sec，顯示裝藥重量及其穩定度所造成的誤差可控制 在一極小的範圍。另當測試需求為欲獲得待測物在每次射擊時所 承受的g值，僅需量測每次射擊後彈著中心與待測物的距離，並 比對第二圖，以内差運算的方法，即可換算出各次射擊時待測物 所承受的g值。 結果 實驗結果顯示，藉由裝藥重量的控制，吾等可獲得 13,000〜31,000 g之加速度。除此，以本實施例所採用之九公釐 手槍而言，若將其全裝藥，火藥量可達0.45克重，此時其子彈射 速可達405 m/sec以上，則以本實驗模式所量得之g值將可達到 100,000 g以上，如表1所示。 表1.不同裝藥重量及距彈著中心距離下測得加速度值 樣本 裝藥量 速度 彈著點與目標 加 速 度 位置之距離 (9.8x103m/sec2) A 0.28 343.1 0.2 28.628 B 0.32 356.4 0.3 44.677 C 0.45 405.3 0.1 110.162* 氺加速度已超越加速感應器的線性範圍 除此，在此我們要說明採用不同材料為子彈終端碰撞體時可 改變g值與碰撞點距加速感應器間距離圖的斜率，本研究中所採 的SAE-1020低碳鋼為受搶擊體，其槍擊後所造成凹陷程度甚為 12 1289667 輕微，亦即其子彈停止的時間甚短，從物理學的觀點可解釋成子 彈瞬間停止時間Δί極短暫，使得子彈獲得極大的減加速度，如式 (3)所示，並且同時傳遞相當的壓力於加速度感應器上，而此結果 亦與前人曾針對不同材料所得到的趨勢一致。由上可知，吾等可 利用調整不同厚度與硬度材質等參數，以改變加速度與碰撞距離 的曲線斜率及更加擴大以本模式所獲得g值的範圍，如此將更能 增加本測試系統與模式的應用範疇。Wherein, the mass representing the acceleration sensor represents a part of the equivalent mass of the partial acceleration sensor embedded structure, the acceleration value measured when the acceleration sensor is included, the acceleration value when the acceleration sensor is not represented, and the acceleration representative The measured resonant frequency /5 represents the resonant frequency of the resonant frequency steel plate 12 measured without the acceleration sensor. The front side of the steel plate 12 is pre-drilled with an acceleration sensor (Β&Κ-8309, piezoelectric, Maximun shock acceleration soil 100,000g) and to be tested. The hole 17 of the object, and the acceleration sensor 15 and the object to be tested 16 are respectively placed in the specific hole position 17, and the acceleration sensor 15 is connected to the signal amplifier via the signal line 13 before the test (2635 charge amplifier, High sensitivity up to 10V/pc), after amplification signal, feed data acquisition and analysis 1289667 system 14 (composed of HP54501A oscilloscope, personal computer and GPIB NI-488.2 data capture card), and finally output compression strength on PC terminal (converted It is a voltage type) time chart and a converted g value and other digital data. When testing, it is necessary to design the acceleration sensor 15 and the object to be tested 16 as much as possible with the steel plate 12 used in the experiment as a rigid body to reduce the experimental error that may be caused by this part. The experiment used to control the object 16 and the drilling gap to be less than 0.1 mm, and use the pressure plate 18 and the clamp to clamp the object to be tested 16 and the steel plate 12, thereby reducing the test error. The preset hole position 17 of the steel plate 12 can be adjusted according to the number and position of the steel plate 12, and more than one sample 16 can be placed at the same time for high g value impact test, which is more economical than the conventional high g value impact test technology. benefit. The data acquisition and analysis system writes the conversion program according to the form of the acceleration sensor. For example, the B&K-8309 model used in this experiment uses the compression generated by the impact to be converted into a voltage output by the acceleration sensor. The data acquisition and analysis system 14 converts it into a peer g value by an internal program such as its pre-set magnification, and outputs it to the monitor of the data acquisition and analysis system 14 or by recording. The device records the measurement results. In addition, the g force measured by the post-shooting acceleration sensor and the distance between the center of the bomb and the sensor can be plotted to draw the same charge (the error of the charge is judged by the speed of the shutter 10) The lower distance is the corresponding map of the center distance and the g value, and then the g value of the object to be tested is converted at a different distance from the center of the bullet. Test Method In this embodiment, a nine-centimeter pistol is used as the emitter, and two hollow doses of 2_7 and 2.8 grams of drug weight are designed according to the requirements of the required terminal g value range. The gunpowder measures the required dose by electronic micrometer. After the gunpowder is filled in, the cartridge and the bullet are sealed with a sealing machine. After each shot, the object to be tested and the fixed acceleration 11 1289667 sensor should be replaced again and re-clamped. After multiple shots, each of the bombing centers will be bored with a drilling machine, and then the distance between the impact center and the accelerometer will be measured by the vernier caliper to obtain the relationship between the impact distance and the g value of the slamming test under a certain charge. As shown in the second figure. For the purpose of this experiment, when the weight of black gunpowder is 0.28 grams, the rate of fire measured by the shutter is 343.3 soil 0.3 m/sec, which shows that the error caused by the weight of the charge and its stability can be controlled to a very small range. In addition, when the test requirement is to obtain the g value of the object to be tested at each shot, it is only necessary to measure the distance between the center and the object to be tested after each shot, and compare the second figure with the difference of the inside. The method can be used to convert the g value of the object to be tested at each shot. Results The experimental results show that we can obtain an acceleration of 13,000 to 31,000 g by controlling the weight of the charge. In addition, in the case of the nine-centimeter pistol used in this embodiment, if the full charge is applied, the amount of gunpowder can reach 0.45 gram, and at this time, the rate of bullet firing can reach 405 m/sec or more. The g value obtained by the mode will reach 100,000 g or more, as shown in Table 1. Table 1. Accuracy of different charge weights and distances from the center of the impact. Sample Charge Velocity The distance between the impact point and the target acceleration position (9.8x103m/sec2) A 0.28 343.1 0.2 28.628 B 0.32 356.4 0.3 44.677 C 0.45 405.3 0.1 110.162* 氺 Acceleration has exceeded the linear range of the acceleration sensor. Here, we will explain the slope of the distance between the g value and the collision point acceleration sensor when using different materials for the bullet end collision body. The SAE-1020 low carbon steel used is the smashed body. The degree of sag caused by the shooting is very slight, and the time of the bullet is very short, that is, the time when the bullet stops is very short. From the point of view of physics, it can be interpreted as the instantaneous stop time of the bullet Δί. Extremely short, the bullet gains a large deceleration, as shown in equation (3), and simultaneously delivers considerable pressure on the acceleration sensor, and this result is consistent with previous trends that have been obtained for different materials. As can be seen from the above, we can adjust the slope of the curve of different thickness and hardness to change the slope of the curve of acceleration and collision distance and expand the range of g value obtained by this mode, which will increase the test system and mode. Application area.
其中，v2因子彈撞聲高硬度材料後瞬間停止，故其值為0; '為光 閘所量得之子彈速度；Δί為子彈撞擊高硬度材料後瞬間停止時 間；α為減加速度。 最後要說明的是以本實施例試驗模式所獲得的振動波形為 一單衝擊（oneshock)形式之瞬間波，如第三圖所示，此部分屬 實驗前的規劃工作，完全端視研究人員對於待測物體可能遭遇之 工作環境而加以律訂。 本發明所設計的高g值衝擊試驗系統，經實測驗證，藉由使 用九公釐手槍不同裝藥重量，其對於材料所產生的碰撞模式可實 鲁 作出高g值範圍的加速度值，並且亦可應用此模式在於高g值的 量測上，其g值範圍更可到達100,000g以上。本發明成果對於欲 從事航太或軍事領域中有關小區域高g值的撞擊模式與量測應用 研究者，提供了另一具效益以及可靠方法。 其他實施態樣 本發明之實施方法已詳述於前述實施例中，任何熟悉本技 術領域之人士皆可依本發明之說明，在不背離本發明之精神與 範圍内視需要更動、修飾本發明，因此，其他實施態樣亦包含 13 1289667 在本發明之申請專利範圍中。Among them, the v2 factor rebounds immediately after the high-hardness material, so its value is 0; 'the bullet velocity measured for the shutter; Δί is the instantaneous stop time after the bullet hits the high-hardness material; α is the deceleration. Finally, the vibration waveform obtained by the test mode of this embodiment is a transient wave in the form of a single shock. As shown in the third figure, this part belongs to the planning work before the experiment, and the researcher completely The work environment that the object to be tested may encounter is subject to law. The high g value impact test system designed by the invention has been verified by the actual test, and by using the different weight of the nine-centimeter pistol, the collision mode generated by the material can be used to obtain an acceleration value in the range of high g value, and also This mode can be applied to the measurement of high g values, and the range of g values can reach more than 100,000 g. The results of the present invention provide another benefit and reliable method for researchers who want to engage in impact mode and measurement applications in high-g-values in small areas in the aerospace or military field. Other embodiments of the present invention have been described in detail in the foregoing embodiments, and those skilled in the art can change and modify the present invention as needed without departing from the spirit and scope of the invention. Therefore, other embodiments also include 13 1289667 in the scope of the patent application of the present invention.
14 1289667 【圖式簡單說明】 第一圖係為本發明實施例之高g值衝擊試驗系統示意圖。 . 第二圖係為不同裝藥重量下距彈著中心距離與測得g值關係 _ 圖。 第三圖係為本發明實施例之衝擊波震動波形圖。 【主要元件符號對照說明】 100—南g值衝擊試驗糸統 10—光閘 φ 11…手槍發射器 12— 鋼板 13— 訊號線 14— 資料拮員取及分析糸統 15…加速度感應裝置 16— 待測物 17— 孔位 1514 1289667 BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a schematic diagram of a high g value impact test system according to an embodiment of the present invention. The second figure is the relationship between the distance between the center of the impact and the measured g value under different charge weights. The third figure is a waveform diagram of the shock wave vibration of the embodiment of the present invention. [Main component symbol comparison description] 100-South g value impact test system 10 - shutter φ 11... pistol transmitter 12 - steel plate 13 - signal line 14 - data analysis and analysis of the system 15 acceleration sensor device 16 - DUT 17 - Hole 15