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Table of Content

    28 June 2025, Volume 53 Issue 3
    SPECIAL COLUMN
    Multi-objective Strike Task Allocation for UAV Swarms Based on MR-WPA
    Chen FEI, Liang ZHAO, Yincheng LI, Shuquan WANG, Zhengyu DUAN
    2025, 53(3):  1-10.  doi:10.3969/j.issn.1009-086x.2025.03.001
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    Unmanned aerial vehicles (UAVs) are widely applied across various fields due to their high mobility and strong coupling capabilities. In the military domain, multi-objective task allocation for UAV swarms holds critical significance. Based on the current research status and latest advancements in UAV task allocation, this paper addresses the limitations of traditional algorithms, such as insufficient robustness, slow convergence, and susceptibility to local optima in complex missions—by proposing an improved wolf pack algorithm (IWPA) based on a multi-rule mechanism. An optimization model is constructed with the objective of maximizing strike effectiveness, incorporating factors such as enemy target distance, attack threat, and target value.Simulation results demonstrate that, compared to other heuristic algorithms, the proposed method achieves faster optimization speed and superior performance, indicating broad application prospects.

    Review of Unmanned Swarm Operations Development for Maritime Battlefields
    Kexiang WANG, Ye LU, Yincheng LI, Shuo CHEN, Chen FEI
    2025, 53(3):  11-22.  doi:10.3969/j.issn.1009-086x.2025.03.002
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    With the rapid advancement of artificial intelligence technology, unmanned systems are increasingly applied in the military domain, particularly in maritime operations, becoming a novel mode of warfare. This paper reviews the domestic and international research progress of unmanned swarm combat technology in maritime battlefields, analyzing the latest achievements by various countries and exploring its practical applications in maritime operations. It proposes a framework for unmanned swarm combat systems tailored to maritime battlefields, encompassing multiple layers such as combat platforms, communication networks, mission applications, and command and control. Core functional tasks, including reconnaissance and surveillance as well as firepower strikes, are discussed in depth. Furthermore, the paper examines evaluation metrics, influencing factors, and existing challenges in unmanned swarm combat on the maritime battlefield. It forecasts future development trends in unmanned swarm combat technology for maritime battlefields, focusing on the potential and challenges in technology integration, diversification of combat styles, and cost-effectiveness. The aim is to provide theoretical support and technical references for advancing the application of unmanned swarm technology in maritime battlefields.

    AIR SPACE DEFENSE SYSTEM AND WEAPON
    Current Situation and Development Trends and Operational Scenarios of the “Loyal Wingman”
    Peng YU, Qunshuo WEI, Wei LIU, Meng LI
    2025, 53(3):  23-31.  doi:10.3969/j.issn.1009-086x.2025.03.003
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    In recent years, the “Loyal Wingman”, which operates manned and unmanned aerial vehicles in collaboration, has attracted much attention due to its potential to subvert traditional air combat modes. This paper studies the progress of the “Loyal Wingman” project in the United States, Russia, Australia and some other countries, and predicts its future development trends. Based on this, and combined with penetrating counter air combat scenarios such as situational awareness, electronic countermeasures, distributed killing, soft penetration and hard penetration, we thoroughly analyzed the operational requirements, operational processes, and operational application modes of the “Loyal Wingman” in system of systems confrontation. which can provide reference for the research of offensive and defensive system of systems confrontation.

    A Method of HRRP Reconstruction and Recognition:SDAE-CNN with Label Constraints
    Jianguo YIN, Wen SHENG, Meng ZHAO, He JIANG
    2025, 53(3):  32-41.  doi:10.3969/j.issn.1009-086x.2025.03.004
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    The high resolution range profile (HRRP) of radar airborne targets is commonly used for target recognition. In practical operation, incomplete data samples and noise interference can present challenges to radar target recognition. To overcome this challenge, this paper combines stacked denoising auto-encoders (SDAE) with label constraints and convolutional neural networks (CNN) for HRRP denoising reconstruction and recognition. SDAE can denoise and reconstruct the HRRP data to enhance the data quality and expand the target dataset. By introducing label constraints in SDAE, the ability to associate the hidden features with the categories they belong to can be strengthened to accelerate the model convergence. The CNN is used to classify the HRRP. Experimental results show that the proposed method in this paper demonstrates superior recognition performance in target recognition under small samples and strong noise scenarios, and is able to overcome the adverse effects of fewer samples and higher noise on HRRP recognition to a certain extent.

    Research on the Development Trend of Target Drone
    Daquan DU, Changjiang DONG
    2025, 53(3):  42-48.  doi:10.3969/j.issn.1009-086x.2025.03.005
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    In view of the influence of the next generation air combat system projects in the United States and Europe on the development and construction of target drone, this paper analyzes the development situation and main system composition of the next generation air combat system, and puts forward the typical characteristics of the sixth-generation manned fighter aircraft as the core element and manned/unmanned aerial vehicle group cooperative operation as the main combat form. Based on the new characteristics of the next generation air combat system and its traction effect on the development of target drone, the development trend of target drone is analyzed from the aspects of target drone simulated target, application scenario, cost and performance, target drone generation mode and combat potential development.It also puts forward the idea of developing and constructing target drone to simulate next generation air combat systems.

    AIRCRAFT TECHNOLOGY
    Research on Maneuvering Flight Action Recognition Method Based on Improved Bop Algorithm
    Peng LUO, Ronghua HU, Yang SHU
    2025, 53(3):  49-56.  doi:10.3969/j.issn.1009-086x.2025.03.006
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    The recognition of flight maneuvering is primarily utilized for assessing pilot training quality, aiding decision-making in aerial combat, and other related scenarios. This study focuses on realizing flight maneuver recognition through the utilization of the bag of patterns (BoP) algorithm, which has been enhanced to address deficiencies in multi-dimensional time series scenarios. The improved algorithm extracts features from flight attitude data and analyze flight maneuver recognition. Simulation results demonstrate that the enhanced BoP algorithm enhances the accuracy and confidence of flight maneuver recognition, while effectively characterizing specific flight maneuvers through extracted parameter features.

    Aeroelastic Simulation of Tiltrotor Unmanned Aerial Vehicle in Hover
    Zonghui WANG, Hongrui ZHAO, Yunjun YANG, Yanwei WANG
    2025, 53(3):  57-65.  doi:10.3969/j.issn.1009-086x.2025.03.007
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    The tiltrotor UAV has both hovering and vertical takeoff and landing capabilities in the air, as well as high speed cruise performance. Aiming at the problem that the rigid aerodynamic shape of a tiltrotor UAV cannot accurately simulate the real flight performance due to the structural deformation of the elastic material, a CFD/CSD coupling method combining rotor bi-directional loose coupling and wing unidirectional coupling is proposed to numerically simulate the aeroelastic problem of tiltrotor UAV in hover state. Using aeroelastic tailoring to optimize the composite layer of the blade, the maximum deformation displacement of the blade is reduced from 22.34 mm to 17.1 mm, and the hovering efficiency is improved from 69.95% to 72.69%. Computational simulations are conducted on the entire aircraft flow field, and the results show that after considering structural elastic deformation, the increase in thrust generated by the entire aircraft rotor system compared to the individual rotor system decreases from 2.09% to 1.18%. The high-pressure zone generated by the rotor downwash on the deformed wing surface shifts approximately 0.1m towards the wing tip direction compared to the undeformed wing.

    Intelligent Optimal Fault-Tolerant Control for Reusable Launch Vehicle
    Yangzhi ZENG, Haoran LI, Bin CHEN, Xiaodong SHAO
    2025, 53(3):  66-73.  doi:10.3969/j.issn.1009-086x.2025.03.008
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    The utilization of reusable launch vehicles has emerged as a prominent research focus owing to their significantly lower launch costs. Vertical sub-stage recovery technology is one of the most successful rocket recovery technologies at present, which requires that the recovery section needs to control the attitude of the rocket to keep it perpendicular to the ground. However, in the terminal deceleration phase of recovery, controlling the rocket relies solely on engine gimballing angles to obtain control moments, thus encountering constraints related to moment saturation. Moreover, deviations in thrust estimation contribute to errors in control moments. In this paper, we introduce an intelligent model predictive control algorithm to achieve attitude control during the terminal deceleration phase. Building upon traditional model predictive control, it employs neural networks to approximate the optimal value function, effectively reducing the computational load of model predictive control. Furthermore, in consideration of potential engine faults, along with constraints related to saturation and thrust estimation errors, a fault-tolerant optimal control allocation algorithm based on quadratic programming is devised. Simulation results substantiate the effectiveness of the proposed methodology.

    Optimization of Path Error for Quadcopter Based on BOA-BP Neural Network
    Shuwei WANG, Jia LI, Jian FENG, Caibin YUE
    2025, 53(3):  74-81.  doi:10.3969/j.issn.1009-086x.2025.03.009
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    An optimization method for BP neural networks based on the butterfly optimization algorithm (BOA) is proposed to address the issue of inaccurate path planning for quadcopters in multi-obstacle environments. The points of the quadcopter along the designated path are used as training samples for the neural network, and the BOA-BP algorithm is employed to train the network to determine the optimal flight path. The simulation results show that the proposed BOA-BP model effectively reduces the path error of the quadcopter compared to the traditional BOA algorithm, with the root mean square error decreasing from 1.60% to 0.003%.

    NAVIGATION,GUIDANCE AND CONTROL
    Analysis of the Key Technologies for Guidance and Control of Anti-high Speed and Strong Mobility Target Interceptor
    Jiong LI, Wanli LI, Jinlin ZHANG, Yangchao HE, Boyang JI
    2025, 53(3):  82-94.  doi:10.3969/j.issn.1009-086x.2025.03.010
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    As a long-range, fast and precise point-strike conventional tactical weapon, the high-speed and strongly maneuverable vehicle can achieve the purposes of global strategic strikes, posing a great challenge to national air and space security. To meet the requirements of high-speed and strongly maneuverable target defense operations, this paper focuses on the key technologies of interceptor guidance control, mainly combing and analyzing the research progress in four aspects: target trajectory prediction, mid-course guidance trajectory optimization, mid to end guidance handover, and missile target attack and defense gaming. At the same time, this paper looks forward to the four key future directions: "medium-and long-term target trajectory prediction", "mid-course guidance trajectory intelligent planning", "end-course guidance capture space research", and "multi-interceptor collaborative trajectory generation". This paper can provide reference for the follow-up research on interceptor guidance control technology.

    Vector Magnetometer Calibration in Unknown Environment of Strong Noise
    Jingli HUANG, Yuliang ZHAO, Weijie FAN, Qiang XU
    2025, 53(3):  95-102.  doi:10.3969/j.issn.1009-086x.2025.03.011
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    According to the TAM (Three Axis Magnetometer) calibration problem in the unknown noisy environment, a novel unknown measurement noise compensation method is proposed to adaptively calibrate vector magnetic sensors. On the basis of a more complete modeling of the calibration, several shortcomings of the traditional calibration method are pointed out when the error parameter is large. The measurement data matrix and the noise matrix in the unbiased cost function are separated using the convolution formula.The unknown noise amplitude in the noise matrix is obtained by constructing a first-order Schur complement approximation after blocking. Through this method, the unknown noise in the measurement data is completely removed.Both simulation and physical experiments demonstrate that the accuracy of the calibrated vector magnetic sensor is significantly improved after noise compensation compared to before compensation, with the advantage becoming more pronounced as noise increases.

    Trajectory Planning Method for Boost Phase Interceptor Based on Adaptive Energy Allocation
    Wanchun CHEN, Jia ZHENG, Xuehe ZHENG, Qi YU, Peng ZENG, Chao WANG
    2025, 53(3):  103-111.  doi:10.3969/j.issn.1009-086x.2025.03.012
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    To overcome the difficulty in intercepting large maneuvering targets, a trajectory planning method based on adaptive energy allocation is proposed for the boost phase interceptors. According to the generalized nominal effort miss guidance, the burnout parameters for each stage are optimized and the fire tables with different energies are established. Before launching, an energy-reserved fire table is used for trajectory planning, and some energy is reserved to cope with the unknown maneuvers of the target in the future. Once the target's maneuvers have been identified, a more energy-efficient fire table is selected to re-perform trajectory planning based on the remaining flight time of the interceptor in boost phase, so that the reserved energy could be gradually released. The simulation results show a significant improvement in the effectiveness of intercepting large maneuvering targets.

    COMMAND CONTROL AND COMMUNICATION
    State Observer-Based Formation Maneuvering Control of Unmanned Aircraft Swarms
    Mi WU, Xianqiao CHEN, Weiwen SHEN
    2025, 53(3):  112-119.  doi:10.3969/j.issn.1009-086x.2025.03.013
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    We address the problem of formation maneuvering control of unmanned aircraft swarm systems with leader-follower structure, and design distributed formation controllers based on bearing information, so as to realize the translation and rotation maneuver control of unmanned aircraft swarms. To overcome the limitations of existing formation control methods based on bearing information when handling time-varying bearing formation, we design a state observer. This observer estimates the desired positions and velocities of the UAVs using relative bearing information from neighboring UAVs and the position and velocity information of the leader. A backstepping controller is designed based on the desired velocities to achieve the maneuver control of the formation system. The estimation error of the observer and the stability of the controller are proven using the Lyapunov method. The effectiveness of the proposed control method is validated through simulations involving translation and rotation maneuvers.

    Multi-antenna Anti-jamming Based on Spatial Wiener Filter
    Hairui CHANG, Yinsheng LIU, Sijun WU, Lei WANG
    2025, 53(3):  120-128.  doi:10.3969/j.issn.1009-086x.2025.03.014
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    In modern high-tech wars, electronic attack weapons cover almost all military communication frequency bands, forming a new "soft" and "hard" electronic attack situation. Wireless communication is the main means of communication in modern war, the anti-jamming ability determines the combat effectiveness of weapon system. Multi-antenna can provide extra degree-of-freedom in spatial domain, and jamming signal can be effectively mitigated by exploiting the degree-of-freedom in spatial domain. In this paper, we investigate the application and simulation of the anti-jamming technique using multiple receiving antennas based on Wiener filter theory. To gain further insight, we analyze the geometry model in the high signal-to-noise ratio region. Computer simulation shows that the spatial anti-jamming based on Wiener filter can effectively mitigate the effect caused by jamming signal.

    TARGET CHARACTERISTIC, DETECTION AND TRACKING TECHNOLOGY
    Research on Cooperative Target Location of Multi-platform Active and Passive Radar
    Guobin FENG, Wensheng GUO, peng WANG, Likai ZENG, Bing XUE
    2025, 53(3):  129-138.  doi:10.3969/j.issn.1009-086x.2025.03.015
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    Aiming at the problem of poor information-level fusion detection and localization accuracy, this paper proposes a multi-platform active-passive radar information-level and signal-level data fusion localization method based on the principle of least squares, and for the existing signal-level fusion algorithms that need the target's a priori information for the temporal alignment of the signal-level fusion algorithms, it puts forward a temporal alignment method based on the positional information of the platform itself and the positional relationship between the platforms. Simulation results show that the method proposed in this paper can effectively realize target positioning. Furthermore, multi-platform active and passive radar signal-level coordination can obtain smaller root mean square error of target positioning and improve the target positioning accuracy relative to the information-level coordination, as well as pure active radar coordination and pure passive radar coordination.

    Half-Space Scanning Beam and Polarization Synthesis of Conical Conformal Array
    Qiang LÜ, Yufei WEI, Xi CHEN, Haopeng LIU
    2025, 53(3):  139-149.  doi:10.3969/j.issn.1009-086x.2025.03.016
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    The conformal array antenna is affected by the curvature of the carrier, and the pattern and polarization direction of each element are different, resulting in low beam synthesis efficiency and difficulty in suppressing high cross polarization levels when synthesizing wide-angle scanning beams. At present, most algorithms such as differential evolution are used for global optimization of conformal arrays, the process of array synthesis is complex and the synthesis efficiency is low. This paper is based on a conical conformal array layout, using a beam polarization synthesis algorithm based on projection rules to achieve efficient synthesis of wide-angle beam scanning and high polarization purity. The calculation results show that the proposed analytical algorithm can achieve high-performance beam scanning of conformal array in the half space, maintaining good low cross polarization characteristics in the main beam. The accuracy and effectiveness of the proposed algorithm are verified using high-frequency simulation software based on full wave numerical methods. This method can provide a theoretical basis for the engineering implementation of high-performance conformal array.

    Design of Two-Dimensional Sparse MIMO Array for Imaging Fuze
    Xu HE, Yuzhao LI, Kang ZHAO, Lifeng HUANG, Mengyu ZHANG
    2025, 53(3):  150-158.  doi:10.3969/j.issn.1009-086x.2025.03.017
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    Aiming at the application of MIMO array radar in imaging fuze, the equivalent phase center error in near-field imaging of fuze is analyzed and the quadratic error compensation method based on Taylor expansion is given. Based on the premise of limited space on the missile, considering the influence of the coupling of the transmitting and receiving antennas, combined with the performance of the antenna beam pattern, the radius distribution interval of the transmitting and receiving array elements is given as the effective set. Based on the effective set, this paper proposes a sparse MIMO array optimization method based on two-step particle swarm optimization (TS-PSO), and obtains the optimized two-dimensional sparse MIMO array. Based on the received echo signal, the equivalent phase center error and motion error are compensated to obtain the imaging results. The simulation results show that the two-dimensional sparse MIMO array based on TS-PSO can meet the requirements of resolution and imaging quality of fuze near-field imaging, which lays a theoretical foundation for the next practical application.

    Active Jamming Recognition Algorithm Based on KPCA-SAE-BP Model
    Zhongchen ZHAO, Limin LIU, Hui XIE, Zhuangzhi HAN, He JING
    2025, 53(3):  159-166.  doi:10.3969/j.issn.1009-086x.2025.03.018
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    To solve the problem of low recognition accuracy of radar new active jamming in strong noise environment, a KPCA-SAE-BP network algorithm is proposed. The features of jamming signal in time domain, frequency domain, waveform domain, wavelet domain and bispectral domain are extracted to construct 67-dimensional input space, and the high-dimensional data is nonlinear dimensionality reduction and reconstruction through kernel principal component analysis (KPCA). A SAE-BP neural network is then used for classification and recognition. Simulation experiments show that in strong noise environment where JNR is greater than -1dB, the recognition accuracy of the KRPA-SAE-BP network algorithm for six new active Jamming is more than 90%, and the training and recognition time is less than 0.7 seconds. Compared with classical BP neural network, SAE-BP network, PCA-BP network and GA-BP network, it has better detection and recognition performance.

    Estimation Method of Future Point of Unpowered Glide Targets
    Shoufeng WANG
    2025, 53(3):  167-173.  doi:10.3969/j.issn.1009-086x.2025.03.019
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    With the development of ammunition intelligence, the unpowered glide munitions represented by JDAM are widely used in modern warfare. Accurately predicting the future trajectory of such targets is the key problem of modern air defense fire control solution. In this paper, a method of future point prediction for unpowered glide targets based on attitude solution is proposed. Kalman filter is used to estimate the position, velocity and acceleration of the target present point. The target attitude coordinate system is established according to the state information of the target, and the state transition matrix is updated based on the force analysis under the attitude coordinate system. The state transition matrix is used to predict the future position of the target point. The experimental results show that compared with the traditional method, the accuracy of the proposed method is improved by 29%-63%.

    INTEGRATED LOGISTICS SUPPORT TECHNOLOGY
    Optimal Design of Two-Stage Accelerated Life Test Under Integrated Environment Stresses
    Xiaodi LIU, Jianli HAN, Tianke LI, Yiqiao WU
    2025, 53(3):  174-181.  doi:10.3969/j.issn.1009-086x.2025.03.020
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    The life cycle of aviation equipment comprises more than one mission stage, yet most of the current ALT optimal design studies only focus on the situation of one mission stage. A two-stage ALT optimal design method under integrated environmental stresses is proposed. The Latin hypercube design theory is used to determine the overall stress level combination of the two-stage test, and to solve for the combination of stress levels between the pre- and post- stage. Taking the minimum sum of the asymptotic variance of the estimated P quantile life of the product under normal stress levels in the two-stage test as the optimization criterion, a mathematical model of the optimal design is constructed to solve the problem of sample allocation between the pre- and post- stage. The case analysis shows that the prediction accuracy of the method is superior to that of the traditional method, and the parameter sensitivity analysis shows that the optimal test plan determined by the method has robustness. This method provides a new idea for the ALT design of multi-stage task products in practical engineering.

    Research on the Capability Evaluation of Radar Countermeasure Equipment Based on Fuzzy Comprehensive Model
    Miaomiao TIAN, Jinxian PENG, Lun ZHOU, Lihua LÜ
    2025, 53(3):  182-190.  doi:10.3969/j.issn.1009-086x.2025.03.021
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    A scientific evaluation of operation test is an important measure for improving the effectiveness of weapon operations. Based on the characteristics of weapon and equipment test and evaluation, the evaluation involves more assessment index and fuzzy process. Given that equipment actualisation assessment is characterised by many assessment indexes and ambiguous judging results, an equipment combat test assessment method based on multi-level fuzzy comprehensive evaluation is proposed. This paper takes the radar countermeasure equipment and combat missions as the research object and establishes the synthetic evaluation index system including operation effectiveness, operation suitability and system suitability; combined IAHP( improved analytic hierarchy process) with entropy weight method to calculate the comprehensive weight; form the evaluation set and based on fuzzy comprehensive evaluation to calculate membership of each level index. Using a certain radar countermeasure equipment as an example, evaluating the overall score. The results show that the model and method can evaluate the equipment operation test and have practical application value. It can better judge the comprehensive operational capability and provide reference and guidance for application and upgrade in later period.

    SIMULATION TECHNOLOGY
    Simulation Research on Equipment Battlefield Repair Based on ExtendSim Platform
    Xuguang TIAN, Longtao WU, Chengming ZHANG, Qinwen ZUO, Ning LIU
    2025, 53(3):  191-199.  doi:10.3969/j.issn.1009-086x.2025.03.022
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    This paper constructs a simulation model for the equipment battlefield repair process under the ExtendSim simulation platform to study the impact of various maintenance support resource elements in the equipment battlefield repair process. A conceptual model of the equipment battlefield repair process was constructed; the modeling boundary was analyzed and a simulation model based on ExtendSim was constructed. On this basis, simulation was conducted on the battlefield repair process of equipment. Through analysis, it is believed that under certain simulation conditions, there is an optimal number of testing personnel and equipment, which results in relatively stable equipment utilization, support personnel utilization, task waiting time, and average task completion time, without consuming excessive maintenance resources. When the number of inspection personnel and equipment is too small, the simulation system runs extremely unstable, sometimes even unable to complete the simulation process. Conversely, an excessive number of inspection personnel and equipment does not significantly improve maintenance efficiency. The impact of equipment heavy-damage rates on the repair process is also studied. The research results of this article aim to provide technical support for the organizational decision-making process of equipment battlefield repair.