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航空航天与国防 行业应用 航空航天与国防 在航空航天和国防领域的产品开发过程中，安全性与性能的保障是核心要求。仿真技术的应用，显著加快了产品设计、测试与验证的步伐，打破了传统只能依靠实验与原型制作的限制，尤其在面对极端测试条件或微小尺度的产品难以测量的情况下，仿真展现出无可比拟的优势。为了构建精确映射真实世界的模型，业界先锋纷纷采用多物理场仿真方法。 欢迎浏览与航空、太空探索、海军装备及军事技术相关的内容，了解 COMSOL Multiphysics® 软件在航空航天与国防行业中的应用。 搜索 用户演示 借助仿真开发航天器中和器 用户演示 美国陆军环境医学研究所通过模拟预测和分析人体冻伤 视频 有限元分析 （FEA）在航空电气化中的作用 模型 飞机机身上的天线串扰 文章 NASA 优化二氧化碳清除系统设计，让太空生活更舒适 博客文章 声呐系统的快速原型设计 模型 多层壳中的失效预测 视频 使用 COMSOL Multiphysics® 优化氢燃料电池和电解槽 视频 电路板热分析 用户演示 使用非等温反应器预测气相分解的阿累尼乌斯参数 视频 主题演讲：国际空间站二氧化碳去除装置的热模拟 用户演示 开发轻型飞行记录器 博客文章 电池组中的热蔓延仿真 视频 通过 COMSOL Multiphysics® 深入了解电池内部 白皮书 锂离子电池仿真 博客文章 如何在电池模型中定义负载循环 博客文章 通过离子-材料相互作用基准模型保护航空航天设备 模型 飞机机身的后屈曲分析 文章 利用遗传算法优化超表面拓扑结构 白皮书 电池仿真 模型 方形锂电池电化学与热的三维仿真分析 模型 方形电池散热 用户演示 提升驱动可靠性：下一代微型快门阵列的驱动力研究 白皮书 燃料电池开发中的建模与仿真 模型 预应力螺栓 Tonpilz 型压电换能器 模型 集总电池老化分析模型 白皮书 小型卫星的传热仿真 用户演示 纤维复合材料性能的均质化 博客文章 应力最小化：改善疲劳特性的启发式算法 模型 钠离子电池一维等温模型 模型 非线性磁致伸缩换能器 博客文章 使用 COMSOL Multiphysics® 模拟燃料电池的 4 个案例 模型 声呐系统的 Tonpilz 型换能器阵列 文章 火箭系统中的平均流增强声场仿真 用户演示 四床分子筛系统的虚拟设计 模型 压电声换能器 模型 潜艇高频渐近散射 博客文章 使用 COMSOL Multiphysics® 计算轨道热载荷 模型 潜艇目标强度 模型 潜艇的消声涂层 文章 波音公司通过模拟复合材料的热膨胀，实现飞机结构的防雷保护 博客文章 优化圆柱形电池的极耳设计 模型 使用机器学习的电池测试循环仿真 App 模型 铜集流体溶解 用户演示 火箭喷射器阻力对声学的影响 博客文章 用于惯性测量单元中的 MEMS 加速度计和陀螺仪仿真 模型 风冷型电池储能系统 模型 液冷型电池储能系统 模型 氮化铝兰姆波谐振器 博客文章 锂离子电池组的液冷分析 模型 燃料电池堆冷却 模型 非等温质子交换膜燃料电池 模型 具有蛇形流场的低温质子交换膜燃料电池 博客文章 评估软包锂离子电池单元的电极利用率 模型 固态装配谐振器 模型 电池组的热管理 博客文章 飞机上的天线串扰模拟 模型 PIN 二极管中的辐射效应 模型 离子射程基准模型 模型 吸湿膨胀引起的 MEMS 压力传感器漂移 模型 高温质子交换膜燃料电池 模型 薄膜体声波 (BAW) 谐振器 模型 流体阻尼器中的黏性热 未找到结果。
cn.comsol.com/industry ...
Over the course of the three-day event, attendees exchanged ideas, found answers to their specific modeling questions, and learned how modeling and simulation is being used in innovative ways in industries such as energy, consumer electronics, aerospace & defense, and healthcare. Here are the highlights from the COMSOL Conference 2024 Boston, including a photo gallery at the end of the blog post.
COMSOL 博客 -
cn.comsol.com/blogs ...
Areas of Specialization We specialize in the following areas: Stress analysis Composites Structural optimization Fluid-structure interaction Available Services Lightness by Design’s customers are often from very competitive markets, like aerospace and defense, in which product performance is extremely important and failure is not an acceptable alternative.
认证咨询机构 -
cn.comsol.com/partners ...
The aerospace and defense industry requires stronger circuit boards than those needed for everyday electronics due to the boards needing to withstand extreme conditions when used in planes, satellites, space shuttles, and control towers.
视频中心 -
cn.comsol.com/video ...
In this keynote talk from COMSOL Day: Aerospace & Defense, Hannah Alpert of NASA Ames shares how technologies, like the Air-Cooled Temperature Swing Adsorption Compressor (AC-TSAC), are a promising alternative to the current complex mechanical compressors that are being used on the ISS.
视频中心 -
cn.comsol.com/video ...
Due to their exceptional properties like high specific strength, high thermal conductivity, less weight and so forth, they are being used in various industrial applications like electronic packaging, and also in automobile, aerospace, defense sectors. Thus, this paper aims at producing a numerical model of micro machining of various compositions of Al-SiC alloys and studies the effects of various parameters on machining such composites.
论文和技术资料 -
cn.comsol.com/paper/28341
Depending on the frequency, RF radiation can travel through solid insulating structures, typical atmospheric conditions, clouds, and rain with only minimal losses allowing for its use over long ranges and in varied weather conditions. The aerospace and defense industries have expanded and progressed rapidly as a result of using radar systems for detection and classification tasks to determine if an object or target is present, where it is located, and if it is moving or stationary. The prevalent use of radar in the defense industry has naturally created the need for detection avoidance methods in order to maintain a competitive edge.
COMSOL 博客 -
cn.comsol.com/blogs/flying ...
Available Services In addition to offering consulting and R&D services, our company also delivers software products to the energy, infrastructure, aerospace, defense, and semiconductor and advanced materials manufacturing industries.
认证咨询机构 -
cn.comsol.com/partners ...
Our industrial technology solutions span aerospace, defense, automotive, consumer, renewable energy, medical, packaging, infrastructure, and heavy industrial markets.
认证咨询机构 -
cn.comsol.com/partners ...
About the Author
Gavin Jones, SmartUQ sr. application engineer, is responsible for performing simulation and statistical work for clients in aerospace, defense, automotive, gas turbine, medical device, and other industries.
COMSOL 博客 -
cn.comsol.com/blogs ...
Electroplating is commonly used for surface finishing due to its effectiveness across the automotive, electronics, corrosion protection, aerospace, and defense industries. Since WWII, the number of patents claiming to achieve "perfect plating" has increased exponentially.
COMSOL 博客 -
cn.comsol.com/blogs/the ...
卫星与航天员不断向宇宙更深处探索，给太空通信技术提出了更多难题。本文介绍了各种各样的航天器天线，包括螺旋天线、喇叭天线、抛物面反射器天线及相控阵天线，并探讨了适用于模拟不同类型天线的最优仿真技术。
用户案例 -
cn.comsol.com/story/67761
The residual stresses developed in a stiffened panel manufactured using Electron Beam Freeform Fabrication (EBF3) process were studied. EBF3 process is a layer additive process that can be used to build near-net shaped parts directly using computer controlled techniques, which can be used for aerospace structures.
A COMSOL model was created to simulate the residual stresses using a thermo-mechanical analysis, with the Goldak’s semi ellipsoidal moving heat source.
论文和技术资料 -
cn.comsol.com/paper/4938
As the demand for lightweight fibrous insulation materials in aerospace [1] and automotive [2] applications increases due to their benefits in reducing carbon footprints and costs [3], accurate prediction of thermal properties becomes crucial, particularly before production. The thermal performance of fibrous materials is highly dependent on their structural characteristics [4]. Therefore, our research aims to develop an efficient and accurate multi-physics Finite Element Method (FEM) to predict the thermal performance of these materials based on structural factors.
论文和技术资料 -
cn.comsol.com/paper/137622
隐形飞机和舰船可以通过优化表面的形状使能量反射远离探测源或采用吸收雷达波的材料来躲避雷达探测。但是，如果舰船或飞机的天线需要正常的通讯工作，就不能完全掩蔽它。这也使其成为剩余的具有很大雷达散射截面 (RCS) 的组件之一，而这基本上会破坏整个系统对于雷达的隐形性。
ALTRAN 是全球领先的创新型高科技工程咨询机构，他们正着手设计几何形状构成的频率选择表面，可优化隐形技术。FSS 的性能与其形状、厚度、基片的选择和各个单元之间的定相有关。这其中有很多可能性，而测试每一种可能的物理场对于设计师来说很耗时。ALTRAN 借助 COMSOL Multiphysics 软件进行仿真来研究各种形状和大小的频率响应以及它们在表面上的分布，在短短几分钟内找到值得研究的模型。
用户案例 -
cn.comsol.com/story/16403
In order to gather more detailed information on the rising sea level, glacier melting and tectonic plate movements to improve our understanding of global and climate change, the Next Generation Gravity Mission (NGGM) is being prepared by the European Space Agency (ESA) in cooperation with the National Aeronautics Space Administration (NASA). These effects can be observed by long-term monitoring of the temporal fluctuations of the Earth’s gravity field. Therefore, a ranging instrument measures the variation of the distance between two satellites in the orbit, one pair of observation satellites in a near-polar orbit and a second pair in an inclined circular orbit.
论文和技术资料 -
cn.comsol.com/paper/135172
Pressure Sensors are widely used in the automotive industry. Their main use is the dynamic monitoring of pressure inside combustion engines. To achieve a good signal accuracy, the design of pressure sensors can be improved with FEM calculations of stress and strains on the measuring cell depending on their geometry and material properties.
The geometry is adapted according to a special nominal pressure and a limit rule of the stresses.
论文和技术资料 -
cn.comsol.com/paper/15540
Particulate reinfoced metal matrix composites (PRMMC) show good combination of strength-to-weight ratio, as a result they are used commonly in fields such as the automotive, aerospace, electronics, among others. Tipical PRMMC are made of metal matrixes such as aluminium and magnesum, whereas reinforcement particles are silicon carbide, alumine, among others. Particle reinforments exhibit angular and circular shapes. Young moduli of PRMMC depend strongly on factors such as the volume fraction reinforcement, particle shape, particle size as well as particle orientation and cohesive forces at the particle-matrix.
论文和技术资料 -
cn.comsol.com/paper/96551
This work reports the application of topology optimization for the design of two types of metallic antennas that are very different from each other: a leaky-wave antenna (LWA) radiating at broadside, and an epidermal patch antenna, optimized to favor radiation coupling into the human body.
Planar leaky-wave antennas are traveling-wave antennas in which the wave “leaks” energy into space while propagating along the structure [“Substrate Integrated Waveguide Leaky Wave Antenna”, Application ID: 16021]. A leaky wave has a complex wavenumber and radiates away from the surface at an angle which depends on the phase constant; it can be generated from a surface wave by modulating the surface impedance of the antenna [A.
论文和技术资料 -
cn.comsol.com/paper/134262
石英陶瓷因其低密度、低导热率、高透波性、耐化学腐蚀等优良的综合性能，在各型雷达天线罩体热防护结构中得到了广泛应用。热防护结构在服役时易受到高温烧蚀损伤，使用压电-导波技术对损伤进行结构健康监测（SHM）具有重要意义，成为当前研究热点。本研究借助COMSOL Multiphysics的固体传热、变形几何、固体力学、静电等物理场对石英陶瓷结构的高温烧蚀过程及压电-导波传播过程进行多物理场直接耦合仿真建模研究，仿真结果再现了石英陶瓷结构在烧蚀过程中的密度、弹性模量、几何形貌等损伤参数变化，以及导波与烧蚀损伤的相互作用。结果表明，导波对于石英陶瓷表面高温损伤是敏感的，基于压电-导波技术的SHM适用于此类损伤的监测。
论文和技术资料 -
cn.comsol.com/paper/136972