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Enhancing Safety and Comfort of Japan’s Bullet Trains: A Case Study on Nippon Sharyo and AcuSolve
技术
- 分析与建模 - 数字孪生/模拟
- 传感器 - 触觉传感器
适用行业
- 铁路与地铁
- 运输
适用功能
- 产品研发
用例
- 制造过程模拟
- 公共交通管理
服务
- 培训
挑战
Nippon Sharyo 是日本领先的铁路车辆制造商,在提高子弹头列车的安全性和舒适性方面面临着复杂的挑战。列车所承受的空气动力压力,特别是在进出隧道或经过其他列车时,给乘客带来重大安全风险和不适。火车进入隧道时产生的压力波可能会引起巨大的噪音和振动,而当两列火车在隧道中相互经过时,压力波的碰撞可能会产生足够强大的力,将一列火车推离另一列火车。如果管理不当,这些力量可能会导致火车脱轨,或者至少会给乘客带来不愉快的体验。还需要考虑其他因素,例如火车在开放景观中通过时的不稳定负载、侧风的影响、门框的噪音以及确保供暖和空调系统的最佳气流,以最大限度地提高乘客的安全和舒适度。
关于客户
日本车辆公司总部位于日本名古屋,自 19 世纪末以来一直从事火车制造业务。如今,它是日本最多产的铁路车辆制造商之一,拥有 1,100 名员工,为全球铁路系统制造各种类型的列车,例如快车、通勤列车、地铁和轻轨车辆。该公司还为日本不断增长的子弹头列车车队设计和生产汽车。自 1964 年开发出第一列子弹头列车以来,日本车辆公司已为这些高速列车制造了 3,200 多节车厢,每列列车由 8 至 16 节车厢组成。最新版本的子弹头列车能够以 300 公里/小时的速度运载乘客。
解决方案
为了应对这些挑战,Nippon Sharyo 转向 Altair 的 AcuSolve 计算流体动力学 (CFD) 软件。构建火车的物理原型非常昂贵,因此该公司使用 AcuSolve 来检查影响火车及其乘客的复杂气流。该软件用于三个关键领域:安全、便利设施和制造。为了安全起见,AcuSolve 帮助估算侧风载荷、地面风速以及经过的火车的空气动力学。在便利设施方面,该软件用于研究隧道入口噪音、暖通空调气流、空气声学以及发动机尾随的汽车振动。在制造方面,AcuSolve 用于设计汽车制造中使用的搅拌摩擦焊接工艺。该软件帮助 Nippon Sharyo 找到解决日益复杂的物理问题的最佳解决方案,从而打造出更好的产品。
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