Mechanical Steering Compensators for High-Performance Motorcycles
Mechanical Steering Compensators for High-Performance Motorcycles
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DOI：
10.1115/1.2198547
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发表时间：
2007-03
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影响因子：
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通讯作者：
S. Evangelou;D. Limebeer;R. Sharp;Malcolm C. Smith
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文献类型：
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作者：
S. Evangelou;D. Limebeer;R. Sharp;Malcolm C. Smith
介绍了采用机械转向补偿器改善高性能摩托车动力学性能的思想。这些补偿器被看作是传统转向减震器的可能替代品，包括弹簧、减震器和一个不太熟悉的称为惯性器的组件。惯性器最近被引入到允许任意被动机械阻抗的合成，并发现在本工作中的潜在应用。这些补偿系统的设计和综合利用了无源电气和机械网络之间的类比。这种类比与被动性，积极的现实和网络合成之间的联系一起进行审查。补偿器的设计方法，是基于经典的伯德-奈奎斯特频率响应的想法。初始设计随后使用序列二次规划算法进行优化。这一优化过程确保了机器在整个运行状态下的性能提升。调查是从一个特定的机械网络的分析类的所有双二次正真实的功能。这方面的研究是针对回答这个问题：“什么是最好的可能的系统性能实现使用任何简单的无源机械网络补偿器？”这项研究利用计算机模拟，利用一个国家的最先进的摩托车模型，其参数集是基于铃木GSX-R1000运动机。结果表明，与传统的转向阻尼器相比，它是可能的，以获得显着的改善的动态特性的主要振荡模式，被称为“摆动”和“编织”。DOI：10.1115/1.2198547
This paper introduces the idea of using mechanical steering compensators to improve the dynamic behavior of high-performance motorcycles. These compensators are seen as possible replacements for a conventional steering damper and comprise networks of springs, dampers, and a less familiar component called the inerter. The inerter was recently introduced to allow the synthesis of arbitrary passive mechanical impedances, and finds a potential application in the present work. The design and synthesis of these compensation systems make use of the analogy between passive electrical and mechanical networks. This analogy is reviewed alongside the links between passivity, positive reality, and network synthesis. Compensator design methods that are based on classical Bode-Nyquist frequency-response ideas are presented. Initial designs are subsequently optimized using a sequential quadratic programing algorithm. This optimization process ensures improved performance over the machine’s entire operating regime. The investigation is developed from an analysis of specific mechanical networks to the class of all biquadratic positive real functions. This aspect of the research is directed to answering the question: “What is the best possible system performance achievable using any simple passive mechanical network compensator?” The study makes use of computer simulations, which exploit a state-of-the-art motorcycle model whose parameter set is based on a Suzuki GSX-R1000 sports machine. The results show that, compared to a conventional steering damper, it is possible to obtain significant improvements in the dynamic properties of the primary oscillatory modes, known as “wobble” and “weave.” DOI: 10.1115/1.2198547