In this paper, the nonlinear dynamics of Selfpropelled machines with rocked impact, taking Frog rammer which was first devised in our country as an example, is studied.

本文以我国首创的蛙式打夯机为例，对自行式摆动冲击机构的非线性动力学进行了研究。

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Material Dynamics has more than 20 years experience in the manufacture of high quality machines for the manufacturers of building materials, minerals, chemicals and food.

对建筑材料，矿产品，化工及食品厂家高质量生产用设备已拥有20年的生产经验。

youdao

Material Dynamics has more than 20 years experience in the manufacture of high quality machines for the manufacturers of building materials, minerals, chemicals and food.

对建筑材料，矿产品，化工及食品厂家高质量生产用设备已拥有20年的生产经验。

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