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引用次数: 11
摘要
NUCARS (New and untry Car analytical Regime Simulation)是一个用于轨道车辆瞬态和稳态响应建模的通用程序。NUCARS对任意数量的刚体或柔体的相互作用进行建模，这些刚体或柔体通过悬架单元型连接连接在一起。提供了用于改变为每个物体所选择的自由度的数目和同一性的方法。潜在的选择包括所有平移和旋转车身自由度以及扭转、垂直和横向弯曲的第一柔性模式(适用于所有车身，轮对除外)。所有连接必须指定刚度和/或阻尼特性。刚性连接具有较大的刚度。连接位置的表示和通过连接的力的选择是为了最小化所需的程序内存。NUCARS是用Fortran 77编码的，用于ibm兼容的个人计算机。介绍了三种车辆动力学应用，包括一辆轻型双轴多式联运汽车的验证测试结果
Development and validation of a general vehicle dynamics simulation (NUCARS)
NUCARS (New and Untried Car Analytic Regime Simulation) is a general-purpose program for modeling rail vehicle transient and steady-state response. NUCARS models the interaction of an arbitrary number of rigid or flexible bodies joined by suspension-element-type connections. Means are provided for varying the number and identity of the degrees of freedom chosen for each body. The potential choices include all translational and rotational body degrees of freedom and the first flexible modes (for all bodies, excluding the wheelsets) in twist and in vertical and lateral bending. All connections must be assigned a stiffness and/or damping characteristic. Rigid connections are given large stiffnesses. The representation of connection location and of forces through the connections is chosen to minimize the program memory required. NUCARS is coded in Fortran 77 for use on IBM-compatible personal computers. Three vehicle dynamics applications are presented, including results of validation testing with a lightweight, two-axle, intermodal car.<>
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