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首页> 外文期刊>Journal of Mechanical Science and Technology >A non-iterative implicit integration method using a HHT- integrator for real-time analysis of multibody systems
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A non-iterative implicit integration method using a HHT- integrator for real-time analysis of multibody systems

机译：一种非迭代隐式集成方法，使用HHT-Integrator进行多体系的实时分析

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摘要

This paper proposes a non-iterative implicit integration method for real-time analysis of multibody systems. Although the implicit Euler integrator is widely used for real-time simulations, we use a HHT- integrator to improve the accuracy of the solution. For a noniterative procedure, the HHT- integral formula was reformed and applied to the linearized equations of motion for multibody systems. A stability analysis of the HHT- integrator was carried out to determine whether the proposed integrator has absolute stability. Numerical simulations with stiff linear systems that represent a highly damped system and a highly oscillatory system were also carried out to evaluate the performance of the proposed integrator. For non-linear multibody systems, the performance of the proposed integrator was also evaluated with a double pendulum example. Through the double pendulum multibody simulations, we confirmed the accuracy and stability characteristics of the proposed integration method by comparison of the conventional HHT- integrator with the iterative method and the implicit Euler integrator, which is widely used in real-time applications.
机译：本文提出了一种非迭代隐式集成方法，用于多体系的实时分析。虽然隐式欧拉集成商广泛用于实时仿真，但我们使用HHT-Integrator来提高解决方案的准确性。出于非特性程序，将HHT-整体式进行重整并应用于多体系的线性化的运动方程。进行了HHT-积分器的稳定性分析，以确定所提出的集成器是否具有绝对稳定性。还进行了代表高度阻尼系统和高度振荡系统的硬线性系统的数值模拟，以评估所提出的集成器的性能。对于非线性多体系，还通过双摆形示例评估所提出的集成器的性能。通过双摆型微爱模拟，我们通过使用迭代方法和隐式欧拉集成商的传统HHT-积分器比较了所提出的集成方法的准确性和稳定性特性，并且广泛用于实时应用。

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