非线性瞬态动力学和瞬态流固耦合问题的数值仿真工具发布最新版本2025！
MSC.Dytran 是 MSC.Software 公司的核心产品之一, 适用于瞬态非线性动力问题、瞬态流固耦合问题的数值仿真。从 1988 年开始, MSC 在结构瞬态动力响应软件 DYNA3D 框架下开发了 MSC.Dyna 并于 1990 年发布了第一个版本。该程序继承了 DYNA3D 优异的快速显式积分算法和丰富的材料模式, 采用 MSC.Nastran 的输入数据格式, 可用于分析各种非线性瞬态响应, 如高速撞击、接触摩擦、冲压成型等。
1993 年 MSC 发布了 MSC.Dytran 的第一个商业版本。该产品集 MSC.Dyna 和 MSC.PISCES 3D 之大成, 拉格朗日和欧拉算法优势互补, 成为第一个能够模拟复杂流固耦合问题、高度非线性、瞬态动力响应的大型商用软件，适合于模拟国防军工领域常见的爆炸、穿甲等流固耦合问题, 在国防、航空航天、核安全、石化等领域有广泛应用。在随后的发展中, MSC.Dytran在单元库、数据结构、前后处理等方面与 MSC 的旗舰产品 MSC.Nastran 趋于一致。
在问世的十余年中, MSC.Dytran 历经无数航空、 航天、 汽车、造船、铁路、国防、核工业等领域科研和工程项目考验。该软件的开发环境经过 ISO 认证, 每天都要通过 500 个以上例题的自动测试以保证程序的可靠性和稳定性。2003 年 MSC.Software 公司与 LSTC 公司达成全球战略合作协议，将 LS-DYNA 程序完全集成入 MSC.Dytran。此功能在 Windows, UNIX 和 Linux 操作系统上均可方便实现。计算高效，求解稳定。MSC 将最强的 Lagrange 技术与最强的 Euler、耦合技术相结合，形成功能最为强大的非线性显式有限元软件。
File Size: 449.4 MB
MSC.Dytran is a system for analyzing highly nonlinear fast-moving processes associated with the interaction of various parts of a structure, a structure and a structure, as well as a structure and a liquid (gas).
MSC.Dytran is a system for analyzing highly nonlinear fast-moving processes associated with the interaction of various parts of a structure, a structure and a structure, as well as a structure and a liquid (gas).
Typical applications of MSC.Dytran include the interaction of a vehicle, an obstacle, a passenger, and an airbag during its inflation during a crash, bird strikes on aircraft structures, ship collisions and groundings, explosions in confined spaces, projectile impacts on and through barriers, meteorite impacts on spacecraft skins, metal stamping, fluid behavior in partially filled containers, and other problems.
MSC.Dytran is based on an explicit method for integrating differential equations over time. This eliminates the need for decomposing large matrices, which consumes a significant portion of processor time when solving highly nonlinear problems. The program is fully vectorized and can be effectively used on computers supporting parallel data processing.
The technology for solving nonlinear structural dynamics problems is based on developments originally performed at Lawrence Livermore National Laboratory. Algorithms for modeling the interaction between a structure and a fluid (gas) originate from developments by the Dutch company Pisces International (acquired by MSC in 1990), subsequently developed by MSC.Software Corporation. To solve such problems, MSC.Dytran uses the Euler formulation.
Due to its ability to solve highly nonlinear problems in the analysis of heterogeneous media, MSC.Dytran is effectively used in the automotive, aerospace, defense, and other industries.
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