某汽车板簧系统振动传递特性试验研究.pdfVIP

2010 10 5 : 2010 0座机电话号码 1 2 2 2 2 孙加平, 安木金, 李舜酩 , 张袁元, 张德满 1. 北汽福田诸城汽车厂, 山东诸城 262200; 2.南京航空航天大学, 南京 210016 : ,, ,, , , : ; ; ; : U461. 3 : A D I: 10. 3969/j. issn. 1006- 1355. 2010. 05. 019 Experim ental Study on Vibration Transfer Characteristics of the Leaf Spring System of an Automobile 1 2 2 2 2 SUN J iap ing , AN M uj in , LI Shunm ing , ZHAN G Yuany uan , ZHAN G D em an 1. BeiqiFutian Automobile Co. , LTD, Zhucheng, Shandong 262200, China; 2. Nanjing University ofAeronautics and Astronautics, Nanjing 210016, China Abstract: To solve strongvibration problem of an automobile, the vibration transfer characteristics the leaf spring system is analyzed expermi entally. The vibration acceleration on both sides of the suspen sion system of an automobile driven on actual road is measured. The tmi edomain analysis, frequency spectrum analysis, relative analysis and transfer characteristics analysis of vibration signals are carried out. It is found that the stiffness magnitude of the leaf spring is themain factor which influences the transfer characteristics of the leaf spring system. According to the results, the leaf spring system is mi proved, and its vibration isolation effect is rem arkably raised. Key words: vibration and wave; automobile; leaf spring system; transfer characteristic , , , , ; , ,, [ 4] , , , ; , ; , , [ 1- 3] ,, : 2010- 01- 22; : 2010- 04- 14 1 : 座机电话号码 BK座机电话号码 1. 1 : 1967- , , , , , , 45 km/h~ 55 km/h Email: jma0415@ 126. com 85 , , , 1 f t x t x t f t , , 5] 50 km/h, 2 1 F ig. 1 D iagram of themounting system location and sensor installation B , - 1 - 1 0. 011m n 2. 83m , 20 km /h~ 90 km/h , f 0. 33 ~ 28. 3 Hz, 2 1. F ig. 2 The coherence function diagram of the upper and lower signal of leaf spring DH5920, ICP , 1 , [ 6] 1 Tab. 1 Param eters of the test equipm ent 50 km/h, /Hz 5000 3 / s 6 /Hz 1950 5. 1 mV /EU 45km /h50km /h 55km /h 3 , Fig. 3 The tmi edomain signalof the frame ,, above