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Design and Optimization of Rocker in Pushrod Mechanism to Reduce Control Lag in Overhead Valve Engines
参考中译:减少顶置气门发动机控制滞后的推杆机构摇杆设计与优化


          

刊名：International Journal of Vehicle Structures and Systems
作者：Ganesh Badiger（Dept. of Mech. Engg., JSPM's Rajarshi Shahu College of Engg.）
Nilesh Navagale（Dept. of Mech. Engg., JSPM's Rajarshi Shahu College of Engg.）
Pavankumar Sonawane（Dept. of Mech. Engg., JSPM's Rajarshi Shahu College of Engg.）
Subim N. Khan（Dept. of Mech. Engg., JSPM's Rajarshi Shahu College of Engg.）
V. Vijay Kumar（Dept. of Mining Engg., Aditya University）
刊号：873HA008/I
ISSN：0975-3060
出版年：2024
年卷期：2024, vol.16, no.5
页码：714-718
总页数：5
分类号：U46
关键词：Rocker design；Pushrod mechanism；Overhead valve engines；Topology optimization；Control lag
参考中译：摇杆设计;推杆机构;顶置气门发动机;布局优化;控制滞后
语种：eng
文摘：This research focuses on the design and optimisation of the rocker in a pushrod mechanism as a novel way to alleviate control lag in Overhead Valve (OHV) engines. Off-road and high-performance vehicles require improved power efficiency and control qualities. Hence, OHV engines have gained popularity due to their longevity and low maintenance costs. However, its usefulness in high-speed applications is limited by control latency, which is mostly caused by the rocker and pushrod assembly. In the study, a novel rocker design with a 1:1.2 levering ratio is introduced and optimised for mass reduction through topology. The design's stress and deformation limitations are verified by finite element analysis, guaranteeing secure and effective functioning. The suggested design improves engine performance overall and minimises control delay by lowering the weight of the rocker by 19%. Lever ratio design, static analysis and topology optimisation are combined in this research to significantly reduce material consumption. The results of this study are not model-specific and provide generalizable insights that may be used to a wide variety of OHV engines in various car applications.
参考中译：这项研究的重点是推杆机构中摇杆的设计和优化，作为减轻顶置阀（ODV）发动机控制滞后的一种新方法。越野和高性能车辆需要提高动力效率和控制质量。因此，ODV发动机因其寿命长和维护成本低而受到欢迎。然而，它在高速应用中的实用性受到控制延迟的限制，控制延迟主要是由摇杆和推杆组件引起的。在研究中，引入了一种杠杆比为1：1.2的新型摇杆设计，并通过布局进行了优化，以减轻质量。该设计的应力和变形限制通过有限单元分析得到验证，确保安全有效地运行。建议的设计提高了发动机的整体性能，并通过将摇杆的重量降低19%来最大限度地减少控制延迟。本研究将杠杆比设计、静态分析和布局优化相结合，以显着减少材料消耗。本研究的结果并非特定于型号，而是提供了可用于各种汽车应用中的各种OHW发动机的可概括见解。



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