CAJ | 학술논문

为进一步提高工程机械驾驶室悬置系统的隔振性能,改善工程机械的乘坐舒适性,提出一种包含惯容器的新型工程机械驾驶室悬置系统,该系统由主弹簧、副弹簧、减振器以及新型隔振元件———惯容器等四个基本元件构成。为确定该新型悬置的最优结构参数,基于牛顿运动定律建立了工程机械全浮式驾驶室悬置三自由度动力学数学模型,确定了驾驶室悬置参数的优化目标及约束条件,并采用粒子群优化算法对工程机械驾驶室悬置参数进行了优化。仿真对比结果表明,基于最优参数的新型悬置系统可使驾驶室地板垂向振动加权加速度均方根值由0.42降低到0.33,降幅达21%,工程机械的乘坐舒适性得到了明显提高,研究将为基于惯容器的新型工程机械驾驶室悬置系统分析和改进提供理论基础和技术支持。
위진일보제고공정궤계가사실현치계통적격진성능,개선공정궤계적승좌서괄성,제출일충포함관용기적신형공정궤계가사실현치계통,해계통유주탄황、부탄황、감진기이급신형격진원건———관용기등사개기본원건구성。위학정해신형현치적최우결구삼수,기우우돈운동정률건립료공정궤계전부식가사실현치삼자유도동역학수학모형,학정료가사실현치삼수적우화목표급약속조건,병채용입자군우화산법대공정궤계가사실현치삼수진행료우화。방진대비결과표명,기우최우삼수적신형현치계통가사가사실지판수향진동가권가속도균방근치유0.42강저도0.33,강폭체21%,공정궤계적승좌서괄성득도료명현제고,연구장위기우관용기적신형공정궤계가사실현치계통분석화개진제공이론기출화기술지지。
In order to improve vibration isolation performance of cab suspension system and ride comfort of construction machinery, a new type cab suspension system with inerter is presented, which mainly consists of main spring, auxiliary spring, damper and a new vibration isolation compo-nent named as inerter. In order to determine the optimal parameters of the new type suspension sys-tem, a three-DOF full floating cab dynamics mathematical model is established based on Newton's laws of motion and the suspension parameters optimal objective and constraints are defined. The par-ticle swarm optimization ( PSO) algorithm is applied for optimization of the cab suspension parame-ters and the simulation comparison results indicate that the weighted root mean square value of the cab floor vertical acceleration is reduced from 0. 42 to 0. 33 , which has a decline by 21%, thus the vehicle ride comfort of construction machinery is effectively improved. The research of this paper can provide theoretical foundation and technical support for analyzing and improving performance of new type cab suspension system for construction machinery based on inerter.