Lightweight design of a certain mortar base plate based on sensitivity analysis

Wang, Fengfeng; Yang, Guolai; Ge, Jianli; Xu, Fengjie

doi:10.1007/s40430-021-02864-2

Cited by 3 publications

(4 citation statements)

References 48 publications

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“…Sensitivity analysis is a method to analyze the sensitivity of system state to changes in external conditions [39,40].…”

Section: Theory Of Sensitivity Analysismentioning

confidence: 99%

Multi-condition stability analysis and lightweight research of mining wide-body dump truck compartment

Liu,

Tian

et al. 2024

Meas. Sci. Technol.

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This paper proposes a multi-condition optimization method based on single condition optimization and weight. This method analyzes and discusses various working states of the wide-body dump truck and optimize its structure. Firstly, the modal shape and natural frequency of the carriage under modal conditions are analyzed using the finite element method. Combined with the mechanic’s theory, the carriage's force, deformation, and stress are studied under the turning and partial load conditions. This part provides a basis for subsequent stability analysis and lightweight research. According to the filtering white noise method and differential equation method, the f-class road model and the vehicle system dynamics model are established in MATLAB to study the influence of road vibration on the stability of the dump truck during operation. The carriage vibration data prove that the road vibration causes the low order resonance of the carriage and affects the stability of the dump truck. This part provides a basis for the subsequent stability optimization. Based on the above analysis, a multi-objective genetic algorithm (MOGA) based on the response surface is used to optimize the structural parameters of the carriage under partial load conditions, turning conditions and modal conditions, to realize the optimization of stability, mass, stress and deformation of the carriage. Finally, the entropy weight method is used to fuse the optimization results of the three working conditions. The correctness of the comprehensive optimization results is verified, and the wide-body dump truck carriage optimization is realized, proving the feasibility of the proposed method.

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“…Sensitivity analysis is a method to analyze the sensitivity of system state to changes in external conditions [39,40].…”

Section: Theory Of Sensitivity Analysismentioning

confidence: 99%

Multi-condition stability analysis and lightweight research of mining wide-body dump truck compartment

Liu,

Tian

et al. 2024

Meas. Sci. Technol.

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“…Te fring load is transmitted to the tail of the gun through the barrel and then to the ground through the seat plate. Based on the topology optimization results of the seat plate and the structural characteristics of the trapezoidal pyramid seat plate, the load-bearing skeleton of the main plate, conical basin, and back plate in the seat plate is designed, which is still made of the titanium alloy material [33]. A coordinate system is established at the center point of the barrel muzzle: the x-axis is perpendicular to the barrel ground plane, the y-axis is the axis direction of the mortar barrel, and the z-axis is determined according to the right-hand spiral rule; a coordinate system 2 is established at the center position of the seat plate in the mortar: the axis is horizontal and transverse, the axis is vertical and downward, and the axis is horizontal and longitudinal.…”

Section: Finite Element Model Of Composite Materials Seat Platementioning

confidence: 99%

“…Jia [6] used the Ansys Workbench fnite element engineering technology simulation platform to carry out the structural lightweight design and material lightweight design on the seat plate. Wang et al [7] used the optimization method of the lightweight composite material layer to carry out the lightweight design of the mortar seat plate. Ge et al [8] used carbon fber reinforced resin matrix composite materials as the main body of the seat plate to absorb recoil energy through large deformation dispersion.…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Optimization of Composite Material Seat Plate for Mortar Based on the Hybrid Surrogate Model

Wang,

Xu,

2024

Shock and Vibration

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As an important force transmission component of mortars, the seat plate affects some core indicators of mortars such as range, shooting accuracy, and maneuverability. In order to withstand huge impact loads, the seat plate was previously made of metal, which accounts for approximately 30%–45% of the total weight of the gun. The drawbacks of the heavy weight of the seat plate, which are not conducive to transportation and transfer, run counter to the current direction of the mortar’s lightweight development. The application of composite materials can greatly reduce the weight of the seat plate, but it exacerbates the contradiction between the mobility and combat effectiveness of mortars. In order to achieve the best match between mortar stability and maneuverability, a multiobjective optimization of composite material layers for seat plates is proposed, utilizing the designability of composite material layers. First, a fiber continuity model based on dropout sequence is adopted to solve the problems existing in the design of inherent continuity classes for composite layered fibers. Second, a hybrid surrogate model that considers the composite material seat plate quality, structural strength, shooting stability, shooting accuracy, and various working conditions is considered. Then, in order to improve the optimization efficiency and robustness of the algorithm, a multiobjective optimization algorithm based on the Chebyshev combination pattern is used to solve the mixed surrogate model. Finally, the optimization results are comprehensively evaluated against the optimization objectives. Research has shown that the method proposed in this article can effectively solve the time-consuming problem of multiobjective optimization, improve the accuracy of hybrid surrogate models, and meet the expected requirements of multiobjective optimization of composite material seat plates. While ensuring shooting stability, the weight of the seat plate is reduced by 18.43% compared to the metal seat plate, which has important application value for lightweight design of mortars.

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“…3, the composite base plate skeleton structure was designed and obtained by using the topology optimization method based on sensitivity analysis, as shown in Fig. 4 [10]. The skeleton material is still made of titanium alloy, and the hollow part in Fig.…”

Section: Modelmentioning

confidence: 99%

Uncertain optimization for composite base plate of mortar under impact load

Wang¹,

Yang²,

Xu³

2023

Vib. proced.

Self Cite

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Information warfare places higher requirements on the remoteness, precision and mobility of artillery weapon systems. As an indispensable and important category of artillery, mortar plays an important role. As an important component of mortar, the base plate bears tremendous impact load. Its design level has an important influence on the shooting stability, shooting accuracy and maneuverability of the mortar. Composite base plate helps improve the maneuverability of the mortar, but it will also make the force and movement rule of mortar launching more complex and lead to a more acute contradiction between artillery power and maneuverability, which propose a huge challenge to modern artillery optimization design theory. Under this background, this manuscript conducts research on the structural uncertain optimization of composite material base plate for the mortar. In order to obtain the optimal solution and reasonable interval of uncertain parameters with main dimension parameters, this manuscript uses interval model to carry out deterministic transformation for uncertain objective function and uncertain constraints, combines multi-objective genetic algorithm to solve the problem, and carries out numerical simulation to verify the optimal value. The result shows that the design idea and method are feasible for uncertain optimization of composite base sheet of mortar under impact load, and the optimization objectives and strategies are effective, which can provide reference for the uncertain optimization research of composite base plate.

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Lightweight design of a certain mortar base plate based on sensitivity analysis

Cited by 3 publications

References 48 publications

Multi-condition stability analysis and lightweight research of mining wide-body dump truck compartment

Multi-condition stability analysis and lightweight research of mining wide-body dump truck compartment

Multiobjective Optimization of Composite Material Seat Plate for Mortar Based on the Hybrid Surrogate Model

Uncertain optimization for composite base plate of mortar under impact load

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