CAJ | 학술논문

以某款A级乘用车为研究对象，设计开发出一套考虑了白车身柔性和车身浮动的悬架试验台夹具。探索性地将白车身扭转刚度线性化，引入虚拟线刚度的概念，导出1/4车身虚拟线刚度的计算公式，建立了能充分体现白车身刚度的3自由度振动模型。最后基于虚拟样机技术验证了其正确性。研究成果为悬架试验台的开发提供技术参考。
이모관A급승용차위연구대상，설계개발출일투고필료백차신유성화차신부동적현가시험태협구。탐색성지장백차신뉴전강도선성화，인입허의선강도적개념，도출1/4차신허의선강도적계산공식，건립료능충분체현백차신강도적3자유도진동모형。최후기우허의양궤기술험증료기정학성。연구성과위현가시험태적개발제공기술삼고。
A set of suspension test bench fixtures is designed for an A-class passenger car with considera-tion of the flexibility and floating feature of car body. As an exploration, the torsional stiffness of body-in-white is linearized with a concept of virtual 'linear stiffness' introduced. The formula of the virtual linear stiffness of 1/4 body is derived and based on this a 3 DOF vibration model is built, which fully reflects the stiffness of body-in-white. Fi-nally the correctness of the model is verified with virtual prototyping technology. The research provides a technical reference for the development of suspension test bench.