【作者】 郭宝良；

【导师】 段志善；

【作者基本信息】 西安建筑科技大学 ， 机械电子工程， 2004， 硕士

【摘要】 基础压实作业是土工建筑、水工建筑、道路工程、市政工程等建设中一项非常重要的基础性工程。基础经过良好的压实，能够显著改善其承载能力和稳定性，降低甚至消除地基的沉降，从而使各项工程在其使用期间有非常稳固的基础。 自行式振动滚压夯实机(以下均简称为滚压夯)是一个多自由度振动系统，但由于许多因素的限制，人们往往是通过对自由度进行简化来建立数学模型，在对机器的减振性能进行分析时又作了进一步的简化。 本文首次将ADAMS引入到滚压夯的模拟仿真中，利用ADAMS软件建立了的整机模型，并且经过仔细研究，发现现有研究存在的不足。为提高滚压夯的行走速度、优化结构、弥补不足，本文在深入研究滚压夯的工作原理的基础上，提出了两种改进模型。然后针对这两种模型建立相应的动力学微分方程，并在各种工况、不同参数条件下进行仿真分析，得出了系统的各种动态响应。通过大量的仿真，得出了模型的结构参数以及土壤参振参数的变化对系统稳定性、行走速度影响的具体结果，得到了较为优化的结构参数和运行参数，从而找出了影响滚压夯行走速度的主要因素及其最优值。为了证实这些模拟结果的正确性和可靠性，对原有模型进行仿真并对原有样机稍加改进后进行了实测，发现实测结果与仿真结果非常吻合，从而充分证实了用ADAMS进行系统优化仿真的可行性和可靠性。最后本文对原有模型和改进后两模型进行了横向对比，充分说明了改进模型的优越性。本文所得出的一些结论对指导滚压夯的整机设计和性能研究等方面具有一定的参考价值。更多还原

【Abstract】 Ground compaction job is a important foundational project of earthwork construction water power engineering civil engineering and city planning engineering etc. Good compaction can evidently improve ground’s carrying capacity and stability and can reduce or remove the subside of the base, so that every project in using have a very steady base.Auto-walk vibration rolling tamping machine(hereinafter shortened form: rolling tamper) is a multiple-freedom vibratory system. In fact it is limited by a lot of factors, so people always simplify it as a two or three-freedom mathematics model. When analysis the vibrating absorption capability, people simplify it again.The thesis not only induct ADAMS software to the simulation of rolling tamper, but alsoconstruct the virtual prototyping model with it. Through the author’s careful studying the oldprototyping, several shortcomings have been found. In order to increase the walking speed ofthe rolling ramper, optimize the structure and remedy its shortage, the paper, on the basis ofdeeply r esearching t he p rincipal t heory of rolling t amper, b ring forward t wo n ew d ifferentadvanced models. Then aiming at these models, the paper establish their correspondingsystem kinematic differential equations. Through emulating in the various working condition,all kinds of system dynamic responses for various parameters have been gained. The papergot the detailed results that how the change of the structural parameters and the soilparameters joining in vibration influence the stability and walking velocity of the system.Meanwhile , the paper got the optimal structural and run-time parameters, and acquired themain factors limiting walking speed of rolling tamper and their optimal values. To validatethese simulated results, the thesis emulated the old model , had a experiment on the oldprototyping, compared them and found the emulational results is similar to the experimentalresults very much. That is to say, Using ADAMS software to emulate and optimize the systemof rolling tamper is of dependability and feasibility. At last, the paper have a transverse contrast among the three models--old model two advanced models, the two advanced models showed their absolute superiorities in the aspects of the walking speed and stability of the system. It may has some reference value in some way by using the result of this thesis, such as in the side of the whole machine design and capability research, etc.更多还原