摘要
针对座椅结构参数对剪式座椅减振性能影响尚不明确的问题,对JF-C-01型汽车剪式座椅结构参数变化与其减振性能关系进行了研究。对座椅悬架结构特点、减振特性影响因素和座椅性能研究方法进行了归纳,提出了一种剪式座椅减振特性的分析方法;通过力学分析推导了座椅悬架的运动微分方程,得到了驾驶员-座椅悬架单自由度简化模型;采用数值仿真法分析了阻尼器倾角、弹簧位置、剪杆长度和倾角变化对座椅减振性能的影响。研究结果表明:阻尼器倾角对座椅减振性能影响明显,随着阻尼器倾角的减小,座椅在隔振区的振动衰减能力增强,但振动放大区的峰值频率和振幅均有所增加;弹簧位置、剪杆长度和倾角在座椅尺寸范围内变化时对座椅减振性能的影响很小;该模型可为剪式座椅的结构性能优化提供依据。
Aiming at the problem of unclear influence of scissor type seat suspension structural parameters on its vibration characteristics, the relationship between structural parameters and vibration characteristics of JF-C-01 scissor type vehicle seat was studied.The structural characteristics of the seat suspension, influence factors of vibration characteristics and research methods of seat vibration reduction performance were summarized.A method for analyzing the vibration characteristics of the scissor type seat was presented.The motion differential equation of seat suspension system was derived by mechanical analysis.A simplified single degree of freedom model for driver seat suspension was obtained.The influences of damper inclination angle, location of spring, length and inclination angle of scissor linkage on the vibration reduction of the seat suspension were analyzed by numerical simulation method.The results indicate that the influence of damper inclination on seat vibration damping performance is obvious.With the decrease of damper inclination angle, the vibration reduction capacity of the seat in the vibration isolation zone is enhanced, but the peak frequency and amplitude in the vibration amplifying zone are increased.The spring location, scissor linkage length and inclination angle changes in the seat size range have little effect on the seat vibration characteristics.The model can provide a basis for structural performance optimization of the scissor type seat.
作者
王利娟
闫建国
侯占峰
张永
朱军
WANG Li-juan;YAN Jian-guo;HOU Zhan-feng;ZHANG Yong;ZHU Jun(College of Mechanical and Electrical Engineering, Inner Mongolia Agricultural University,Hohhot 010018, China;School of Electrical Engineering andAutomation, Henan Polytechnic University,Jiaozuo 454000,China)
出处
《机电工程》
CAS
北大核心
2019年第4期368-373,共6页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(61563042)
内蒙古自治区高等学校科学研究资助项目(NJZY13068)
河南省重点研发与推广专项资助项目(182102210052)
关键词
剪式座椅
结构参数
减振性能
scissor type seat
structural parameters
vibration characteristics
