Abstract:

According to the characteristics of machinery and the principle of operation,an integrated coupling model for intelligent roller with adjustable vibration mode was put forward.During compaction, the fact that the vibratory drum may contact,slide or lose of
contact with subgrade was thought over and the corresponding mathematic model was
presented. Taking the YZC12 intelligent roller as an example, the dynamics response characteristics were investigated with different vibration modes comparing with the results of oscillation model with single vibration mode.Furthermore,experiments on asphalt
compaction were carried out to determine the validity of the present model.The results show that the single-mode model is unsuitable for this new kind of intelligent roller.It is rational to consider the coupling characteristics of vibration system between the vertical direction and the horizontal direction.

Key words: intelligent compaction;vibration mode;dynamics model;coupling characteristics

摘要：

针对振动模式可调的新型智能化压路机的机构特点和工作特性，建立整体耦合动力学模型，给出压实过程中压实机构与物料连耦、打滑和跳振情况下的数学模型。以YZC12型智能化压路机为例，分析了系统在不同振动模式下，垂直方向和水平方向相互耦合的激振动力响应特性，与水平振荡单一模式振动模型进行了比较分析，并通过高速路沥青的现场施工压实试验予以验证。结果表明，综合考虑系统耦合振动特性的整体耦合动力学模型比现有的单一模式振动模型更适合于智能机构压实系统。
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关键词: 智能压实；振动模式；动力学模型；耦合特性