OHB System AG 与 HyperWorks 和 Altair 合作伙伴联盟一起简化光学卫星组件的开发流程
技术
- 网络与连接 - 全球导航卫星系统 (GNSS)
- 传感器 - 全球定位系统
适用行业
- 设备与机械
- 电信
适用功能
- 产品研发
- 质量保证
用例
- 预测性维护
- 时间敏感网络
服务
- 系统集成
- 测试与认证
关于客户
OHB System AG 是欧洲领先的航天公司之一，专注于航天、科学和工业的高科技解决方案。该公司传统上结合领先的国内和国际公司的技术来开发新的解决方案。凭借这些合作伙伴关系以及对辛迪加的有效参与，OHB 几十年来一直是欧洲航天局、德国航天中心、德国联邦国防部以及私营和公共部门客户追捧且可靠的合作伙伴。 OHB项目涵盖模型设计和测试以及卫星开发、运行和数据利用。
挑战
OHB System AG 是欧洲领先的航天公司，在卫星光学仪器的开发方面面临着重大挑战。该公司必须确保卫星镜子系统的结构安全，因此在开发过程中使用了 CAE 软件。面临的挑战是确保该设备在太空中能够正常运行并按预期持续使用，而不会出现任何疲劳故障。所有卫星部件都必须承受非常重的负载和振动，尤其是在发射过程中，一旦将它们发射到太空中，更换它们的成本将非常昂贵。工程师必须预测一些负载作为时间的函数（确定性负载），但他们只能统计估计其他负载（随机负载）。对于这些随机载荷，工程师通常采用随机环境，将来自发动机、声载荷或空气动力湍流的宽带和高频振动引入系统。
解决方案
OHB System AG 在预测主结构发射阶段的负载条件时采用计算机辅助模拟，以验证是否符合承载卫星单元的强度和稳定性要求。他们使用 Altair 的 HyperWorks 套件，特别是用于预处理的 HyperMesh 和用于优化任务的 OptiStruct。对于本文涵盖的两个项目，OHB 必须评估发射过程中系统振动所产生的反射镜系统上的波动应力。为此，除了其他 CAE 工具外，工程师还使用了 Altair 合作伙伴联盟 (APA) 提供的软件 CAEfatigue VIBRATION (CFV)。 CFV 是一款功能强大的频域随机响应后处理器（与噪声、振动和声振粗糙度相关）以及独特的振动疲劳求解器，可与混合随机和确定性载荷源配合使用。这里应用软件工具来简化开发过程并更深入地了解子系统的行为。
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