• Title, Summary, Keyword: Military Vehicle

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Vibration Response Analysis of the Military Vehicle by Road Test (군용차량 주행 진동응답 분석)

  • Shin, Dong-Jun;Lee, Jong-Hak;Kang, Young-Sik;Choi, Ji-Ho;Kang, Dong-Seok
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.262-266
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    • 2014
  • Military vehicle equipped with an antenna and a shelter for operating radar has a vibration exposure during driving time. This vibration would have influence on structure of military vehicle critically. In this paper, driving stability of the military vehicle is obtained through the vibration response analysis. And, vibration level of the military vehicle satisfied the military vibration specification through analysis and comparing the MIL-STD-810G. PSD and Grms data obtained by road test can be used for vibration test specification of cabinets and electronic equipment in shelter.

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Dynamic Characteristics Analysis of a Military Vehicle via Road Tests (주행 시험을 통한 군용 차량 구조 동특성 분석)

  • Park, No-Cheol;Park, Jong-Beom;Lee, Jong-Hak;Lee, Jong-Hyun;Kang, Kwang-Hee
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.277-280
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    • 2014
  • Recently, military vehicles that are being driven are equipped with a lot of electronic devices. The military vehicles are easily exposed to impact. Thus, they have to be designed robustly to ensure that the stability of the vehicle and the electronic equipment. In order to design the vehicles efficiently, the dynamic characteristics of a military vehicle have to be identified exactly. The main frame has a significant role to the dynamic characteristics of the vehicle. Thus, this research was progressed mainly with the frame. By carrying out road tests, the characteristics could be identified. Also, based on the characteristics, we constructed FE model of the frame and performed the analysis of the dynamic characteristics of the vehicle.

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A Study on Improvement of Aiming Ability using Disturbance Measurement in the Ground Military Vehicle (지상무기체계에서의 외란측정을 이용한 정밀 지향성 향상 연구)

  • Yoo, Jin-Ho;Park, Byung-Hun
    • Journal of the Korea Institute of Military Science and Technology
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    • v.10 no.2
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    • pp.12-20
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    • 2007
  • The aiming ability is a key to improve the accuracy performance of the gun pointing system in the ground military vehicle. This paper describes the new detection method of chatter vibration using disturbance acceleration in the pointing structure. In order to analysis the vibration trends of the pointing system occurred while the vehicle driving, acceleration data obtained from vehicle was processed by using data processing algorithm with moving average and Hilbert transform. The specific mode constants of acceleration were obtained from various disturbances. Vehicle velocity, road condition and property of pointing structure were considered as factors which make the change of vibration trend in vehicle dynamics. Finally, back propagation neural networks have been applied to the pattern recognition of the classification of vibration signal in various driving conditions. Results of signal processing were compared with other condition result and analysed.

Dynamic characteristic analysis of a military vehicle using radar via road tests (레이더 차량의 주행시험을 통한 동특성 분석)

  • Park, Jong-beom;Lee, Sang jeong;Park, No-Cheol;Lee, Jong-Hak
    • Transactions of the Society of Information Storage Systems
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    • v.11 no.2
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    • pp.26-30
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    • 2015
  • Recently, military vehicles are driven with a lot of electronic devices such as radar, antenna, and information storage devices. However, the military vehicles can be exposed to impact easily. Therefore, they have to be designed robustly in order to ensure the stability of the vehicle and the electronic devices. To achieve that, the dynamic behaviors of the military vehicle should be exactly identified. Therefore, in this research, dynamic behaviors of the vehicles were identified by carrying out road tests and we constructed finite element model to analyze the dynamic characteristics of the vehicle.

Analysis for Driving Shock Resistance of Military Vehicle (군용 차량 주행 내충격 분석)

  • Jeon, Jong-Ik;Lee, Jong-Hak;Jeong, Eui-Bong;Kang, Kwang-Hee;Choi, Ji-Ho
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.267-272
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    • 2014
  • In this paper, we analyze the characteristics for the driving shock resistance of the military vehicle through the bump test. Prior to the experiment, theoretical analysis was performed by using the SRS(shock response spectrum) and VRS(vibration response spectrum) analysis method. And we estimated the characteristics for the driving shock resistance of the military vehicle. Bump test was performed using the acceleration sensor and the driving test at a different speed. We evaluated the characteristics for the driving shock resistance of the military vehicle based on the result. And predicted values were compared with the theoretical analysis. In addition, we evaluated the results of the theoretical prediction of the SRS and the VRS analysis. And we evaluate the suitability of the prediction method at military vehicle shock analysis.

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A Study on OMS/MP of a Combat Vehicle Mounted with Weapon Systems for Power and Energy Control Strategy Development and its Application (무기탑재 전투차량의 임무부하분석을 위한 OMS/MP 방법론과 적용 연구)

  • Yoo, Sam-Hyeon;Lee, Jong-Woo;Lee, Min-Hyung;Lee, Seung Min;Jang, Myeong-Eon
    • Journal of the Korea Institute of Military Science and Technology
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    • v.16 no.1
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    • pp.48-55
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    • 2013
  • To obtain the requirements of capability and analyze mission loads for weapon systems which are in process of development, Operational Mode Summary/Mission Profile(OMS/MP) should be documented in advance. In this paper, we have proposed a systematic and practical OMS/MP model processes of a weapon mounted combat vehicle for analyzing power and energy strategy. The wartime and peacetime OMS/MP of a hybrid wheeled combat vehicle which is mounted with an anti-tank guided weapon(ATGW) is also presented as its application.

Feasibility Study on Road Bridge Passed by Heavy Equipment Transporter (HETS 차량의 교량 통과 가능성에 관한 연구)

  • Kang, Young-Chul;Lee, Pil-Jae
    • Journal of the Korea Institute of Military Science and Technology
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    • v.12 no.2
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    • pp.236-247
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    • 2009
  • In Korea, the driving system restriction criteria is strictly applied(gross weight 400kN, axial load 100kN). Especially after the Seoungsu Bridge accident, safety factor has been strictly applied. The Safety factor is applied to the cumulative results for each steps like design, construction, maintenance of the Bridge. Because of it, the bridge is undervalued compared to its capacity. So, this generates loss for both private and military sector(eg. logistical delays, structural damage, etc.). But analyzing data from many existing researches we have confirmed that the military heavy vehicle may pass through the first class bridges. In consequence, this study have focused on determining whether HETS vehicles can pass over the first class bridge, without safety issues, using MIDAS structural analysis program. The results have confirmed that the military heavy vehicle may pass over the bridge.

The Selection of Representative Drive Course for Small Tactical Vehicles Through Movement Condition and Operational Environment Analysis (소형전술차량 기동조건 및 운용환경 분석을 통한 대표주행경로 선정)

  • Kim, Juhee;Lee, Jongwoo;Yoo, Samhyeun;Park, Ji-il;Shin, Hyunseung;Kwon, Youngjin;Choi, Hyunho
    • Journal of the Korea Institute of Military Science and Technology
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    • v.22 no.3
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    • pp.341-352
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    • 2019
  • LTV(Light Tactical vehicle) operating in our military requires higher levels of performance and durability to withstand harsher conditions than ordinary vehicles, as they must travel on both rough-train and off-road as well as on public roads. Recently, developed light tactical vehicle is developed by a variety of test evaluations in order to satisfy ROC(Required Operational Capability) by the requirement military group. However, there is no standardized driving test condition for satisfying the durability performance of Korean tactical vehicle. Therefore, this study aims to provide basic data to establish reliable driving test conditions by analyzing the maneuver conditions and the driving data in order to select the representative drive course required. To do this, we analyzed the future operational environment, the area of operation analysis and the driving information of light tactical vehicle.

A Convergence Study on Improvement of Emission Regulation in Military Vehicle (군용차량 배출가스 규제 개선에 관한 융합적 고찰)

  • Yoon, Heung-Soo
    • Journal of the Korea Convergence Society
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    • v.11 no.1
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    • pp.181-186
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    • 2020
  • Civil technologies and parts occupy big ratio in military vehicle as military supply goods were commercialized. In case of the military vehicle engine, the civil purposed engine has been militarized without developing engine for defense industry. Because of this, it happens that Euro-5 version is mounted in spite of Euro-6 at present because the civil laws on the civil purpose engine and required operational capability for militarization are applied by overlapping. Therefore, this study focused on current situation and issues on the military vehicle emission regulation and suggested how to improve through analyzing the theses, articles, Korean laws and systems. For improving methods, imposing the emission certification duty and exempting the certification for the vehicle of high strategical importance were suggested through aligning the related laws. Consequently, it is expected that this study will be used for basics of checking the civil laws and connection with military systems for commercialization of military supplied goods.

Relative Road Damage Analysis with Driving Modes of a Military Vehicle (군용차량의 주행모드에 따른 상대 노면 가혹도 분석)

  • Suh, Kwonhee;Song, Bugeun;Yoon, Hiseak
    • Transactions of the Korean Society of Automotive Engineers
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    • v.24 no.2
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    • pp.225-231
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    • 2016
  • A military vehicle is driven at different usage modes with the army application and servicing conditions. For practical durability validation, DT(Development Test) on a new military vehicle should be run up to the durability target kilometers on test courses in the specified proving ground. Driving velocities with test courses at the endurance mode of DT are established definitely. However, OT(Operational Test) and initial endurance test of production car can't be performed only in the DT courses due to the development period limit. Therefore, this paper focuses on the method to analyze the relative road damages between the endurance test in DT and other endurance test. Road load acquisition tests on KLTV(Korean Light Tactical Vehicle) were implemented at 15 driving modes in off-road and cross-country courses of two tests. Wheel accelerations were processed through band-pass filter, and then the main frequency and maximum power of the signals were computed by PSD analysis. Finally, using the proving ground optimization based on RDS(Relative Damage Spectrum) characterization, the damage factors between off-roads of test courses were determined.