技术
- 机器人 - 自动导引车 (AGV)
- 传感器 - 自动驾驶传感器
适用行业
- 汽车
- 可再生能源
适用功能
- 维护
- 产品研发
用例
- 智能停车
- 车辆到基础设施 (V2I)
关于客户
西悉尼太阳能队是一群参加太阳能赛车比赛的学生。他们参加挑战者级比赛,参赛的单座太阳能汽车旨在实现持续的耐力和总体能源效率。该团队必须遵守严格的尺寸限制,控制汽车的最大尺寸以及最大 4 平方米的太阳能电池阵列。他们可以在这些限制内自由地设计最高效和空气动力学的汽车。该团队在比赛中有着良好的表现,在2017年普利司通世界太阳能挑战赛中获得第六名,并在2018年美国太阳能挑战赛中获胜。
挑战
西悉尼太阳能团队的任务是设计最高效、最符合空气动力学的单座太阳能汽车,同时确保驾驶员安全并遵守级别规则。该团队对太阳能汽车车身形状进行了预定设计,并进行了优化,主要重点是减少空气动力阻力。然而,他们在现有设计中优化汽车的硬壳式底盘、舱壁结构和电机外壳方面面临着挑战。他们还必须遵守级别规则中规定的严格设计负载情况以及最小重力强度要求,以确保驾驶员安全。此外,他们还必须设计和优化防滚架,以安全地容纳驾驶员。该团队获得了汽车的几何模型,其中列出了底盘和结构,但没有防滚架的设计。
解决方案
固瑞特工程师被聘请来优化现有设计中的汽车组件。他们使用设计和模拟软件进行拓扑优化,输入载荷、力和设计约束,以产生能够承受最小重力要求的最有效的滚环结构。然后将防滚环的形状导入底盘的有限元分析 (FEA) 模型中,在该模型中,可以将两种结构作为一个整体进行分析,以便更准确地表示强度和整体刚度。工程师使用复合材料优化软件工具来分析底盘和防滚架,主要目标是最小化结构的质量,次要目标是最大化结构的刚度。优化分三个阶段进行:形状优化、尺寸优化和层数优化。最终模型使用设计载荷工况和无失效约束进行测试,以确保结构完整性与碳层的预期布局。
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