Proceedings of the 32nd International Symposium on Ballistics最新文献

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF TERMINAL BALLISTIC IMPACT OF GELATIN 明胶末端弹道冲击的实验与数值研究

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36145

R. Chaplin, Mark Minisi, Morten Rikard Jensen, Kshitiz Khanna, Shawn Spickert-Fulton

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STUDY ON EFFECT OF BULLETS BLUNTING GELATIN TARGET WITH SOFT ARMOR 子弹钝化软装甲明胶靶的效果研究

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36197

XUE-JIAO Wang, D. Yuan, Tong Gao

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IMPACT TESTS WITH SINGLE OR MULTI IMPACTORS USING A GAS GUN TO REPRODUCE IEDS’ AND UNCOMMON THREAT 使用气枪进行单冲击或多冲击试验，以再现爆炸和不常见的威胁

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36172

J. Mespoulet, Hakim Abdulhamid, P. Deconinck

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INSTRUMENTATION, EVALUATION AND TEST METHOD OF CARTRIDGE ACTUATED DEVICE (CAD) FOR AIRCRAFT APPLICATION 飞机用插装驱动装置(cad)的仪器、评价和试验方法

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36081

B. Parate, H. Singh, A. Sahu, P. Sonawane

{"title":"INSTRUMENTATION, EVALUATION AND TEST METHOD OF CARTRIDGE ACTUATED DEVICE (CAD) FOR AIRCRAFT APPLICATION","authors":"B. Parate, H. Singh, A. Sahu, P. Sonawane","doi":"10.12783/ballistics22/36081","DOIUrl":"https://doi.org/10.12783/ballistics22/36081","url":null,"abstract":"This research work describes a proficient method about the instrumentation, evaluation, and test method of cartridge actuated devices (CAD) using a velocity test rig (VTR) for aircraft applications. CADs are known as gas generating devices that are installed on various military aircraft of Naval bases and Air Force to perform a highly significant task such as deployment of parachute, catapult, ejection of seat, thrusters, release of bomb, cutting action of cable, fuel tanks etc. These devices produce high temperature and pressure combustion gases on initiation. As these devices are utilizing once in life time and their end use cannot be tested by non-destructive techniques. Therefore, such devices are developed with high quality and reliability. All the safety aspects are considered during various stages of development and testing. The device presented in this article has undergone rigorous qualification trials before assigning a useful and serviceable life. The projectile velocity was determined experimentally with a Doppler RADAR at cold and hot conditions. These velocities vary from 142.76 ms-1 to 164.23 ms-1. This study provides new insight into the measurement of projectile velocity using Doppler RADAR.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114572051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

STUDY ON THE FORMATION BEHAVIOR OF SILVER-COPPER ALLOY SHAPE CHARGE JET 银-铜合金聚能射流形成行为研究

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36073

Taian Chen, X. Zu

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APPLICATION OF WAVELET THRESHOLD ALGORITHM OPTIMIZED BY CHAOTIC ADAPTIVE FIREWORKS ALGORITHM IN THE DE-NOISING OF MUZZLE RESPONSE SIGNALS 混沌自适应烟花算法优化的小波阈值算法在炮口响应信号去噪中的应用

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36084

Yugang Ding, Ke-dong Zhou, Lei He, Haomin Yang

{"title":"APPLICATION OF WAVELET THRESHOLD ALGORITHM OPTIMIZED BY CHAOTIC ADAPTIVE FIREWORKS ALGORITHM IN THE DE-NOISING OF MUZZLE RESPONSE SIGNALS","authors":"Yugang Ding, Ke-dong Zhou, Lei He, Haomin Yang","doi":"10.12783/ballistics22/36084","DOIUrl":"https://doi.org/10.12783/ballistics22/36084","url":null,"abstract":"To extract the muzzle response signals effectively and reduce the noise in the signals, a novel de-noising method, i.e., wavelet threshold algorithm optimized by the chaotic adaptive fireworks algorithm, is proposed for the de-noising of the muzzle response signals. This method obtains the wavelet threshold by calculating the Stein’s unbiased risk estimate (SURE), and uses the chaotic adaptive fireworks algorithm to search for the global optimal threshold, which can avoid the threshold falling into local optimal value effectively. Meanwhile, a novel threshold function is adopted to keep the balance between the signal preservation and noise filtering. To verify the de-noising effect of this method, the wavelet threshold algorithm optimized by gradient descent algorithm and the wavelet threshold algorithm based on standard soft threshold function are introduced to compare the denoising effect of the Blocks signal, HeaviSine signal and the measured muzzle response signal under the interference of Gaussian white noise. The results show that the proposed method can effectively suppress the noise while retaining the details in the muzzle response signal, and exhibits a promising prospect in practical application.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126896920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

INFLUENCE OF THE PENETRATOR MATERIAL ON THE DEPTH OF PENETRATION OF TUNGSTEN ALLOY APFSDS PROJECTILES IN AA 7020 T651 侵彻材料对a7020 t651中钨合金apfsds弹丸侵彻深度的影响

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36164

A. Klavzar, NICLAS-BENJAMIN Thomas Mägerlein, Marvin Becker, D. Kramer

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FUNDAMENTALS OF PROPERTY PREDICTION OF COMPOSITE ENERGETIC MATERIALS 复合含能材料性能预测基础

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36048

A. Schmets, L. Koene

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ANALYSIS ON THE CORRELATION BETWEEN BULLETS DEFORMATION AND INCIDENT PARAMETERS OF PISTOL BULLET IMPACT TO CONCRETE 手枪子弹冲击混凝土时子弹变形与入射参数的相关性分析

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36191

Jin-ming Li, Wei Wei, W. Yan, Shu Wang

{"title":"ANALYSIS ON THE CORRELATION BETWEEN BULLETS DEFORMATION AND INCIDENT PARAMETERS OF PISTOL BULLET IMPACT TO CONCRETE","authors":"Jin-ming Li, Wei Wei, W. Yan, Shu Wang","doi":"10.12783/ballistics22/36191","DOIUrl":"https://doi.org/10.12783/ballistics22/36191","url":null,"abstract":"To study the correlation between the bullets deformation characteristics and incident parameters of a 7.62mm lead pistol bullet during impacting to concrete, and to find the sensitivity relationship between each characteristic eigenvalue and quantity parameters, the finite element model of a 7.62mm lead pistol bullet hitting the concrete target was established. The accuracy and effectiveness of the numerical simulation were verified by experiments, and the numerical method can truly reproduce the motion behavior of the bullets in the process of hitting concrete. The results showed that under normal penetration, the angle between the impact surface and the projectile axis can be judged as a normal penetration, the height of the bullet decreases with the increase of incident velocity and is more sensitive to incident velocity, and the deformation of the bullet showed more characteristics under oblique penetration, and the changing trend of each eigenvalue at a different incident angle is similar. In addition, the grey correlation analysis of each eigenvalue of bullets deformation was carried out, and the sensitivity relationship of each eigenvalue to incident parameters was obtained, which provides technical support for the ballistic reconstruction of gun-related cases.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125662527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ANALYSIS OF ELECTROMAGNETIC RADIATION PROCESS OF TYPICAL SINGLE-COMPOUND EXPLOSIVE 典型单一复合炸药电磁辐射过程分析

Proceedings of the 32nd International Symposium on Ballistics Pub Date : 2022-05-09 DOI: 10.12783/ballistics22/36054

Yuxiang Hao, Hong Chen, Yong He, Xuetao Pan, Yu Zhou, Jiehui Shen

{"title":"ANALYSIS OF ELECTROMAGNETIC RADIATION PROCESS OF TYPICAL SINGLE-COMPOUND EXPLOSIVE","authors":"Yuxiang Hao, Hong Chen, Yong He, Xuetao Pan, Yu Zhou, Jiehui Shen","doi":"10.12783/ballistics22/36054","DOIUrl":"https://doi.org/10.12783/ballistics22/36054","url":null,"abstract":"Explosion will generate electromagnetic radiation, the time domain waveform and spectrum generated from different types of explosives are different. For researching the characteristics of the electromagnetic radiation in process of explosion, the electromagnetic radiation signals and the images of the explosion process of typical single-compound explosives TNT and RDX are measured by wide band electromagnetic radiation signal measuring devices and high-speed photography. The experimental results show that the peak time of electromagnetic signals of TNT and RDX are significantly delayed compared with the initiation time of the detonation. The delay time of the peak signal of TNT explosion electromagnetic radiation is 55.07μs, and the delay time of RDX is 68.40μs. At 5m from the detonation center, the peak signal electric field strength of TNT and RDX explosion electromagnetic radiation is 1.92V/m. After the initial discharge interference signals have been removed, the electromagnetic pulse signals are analyzed by Fast Fourier Transform, it is shown that during explosion, the frequency of electromagnetic radiation is within 100MHz, and the frequency spectrums of electromagnetic radiation signals of different explosives are different.","PeriodicalId":211716,"journal":{"name":"Proceedings of the 32nd International Symposium on Ballistics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132014448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0