磁流变弹性体制备及其隔震技术研究
时间:2018-07-06 19:58 来源:毕业论文 作者:毕业论文 点击:次
| 毕业设计说明书中文摘要智能材料已经在很多工业领域得到了应用，并极大的促进和改变了我们的生活。磁流变弹性体是一种新型智能材料，由高分子聚合物和磁性颗粒组成，其力学性能可由外加磁场控制，可用于隔震减震结构。制备出高磁导率及其他高性能的磁流变弹性体材料对于磁流变弹性体的研究非常重要，所以本文根据不同配比和不同原材料的选择制备出10种不同的磁流变弹性体，并建立测试系统对其磁致弹性模量、磁导率进行测试、剪切模量测试，实验结果表明，磁性颗粒含量为70%时，磁流变弹性体的性能达到最好，以及在不同磁场强度下测试的样品的性能也不尽相同，表现为：性能随测试磁场的提高而提高。根据磁流变弹性体的这一特性，设计出磁流变弹性体隔震机构并对其进行磁路仿真，根据仿真结果对结构进行优化，由于是隔震结构，在地震来临时需要作出迅速反应，所以磁路设计和结构设计都应该尽量简单，以减少反应时间和能量的流失。25369 关键词 磁流变弹性体 性能测试 隔震 仿真 毕业论文设计说明书外文摘要 Title The research in Preparation and isolation technology about Magnetorheological Elastomer Abstract Intellegent material now is widely applied in many industrial fields. As it is , our daily life has been changed a lot. Magnetorheological elastomer belongs to a new type of intelllegent material. It is made of high molecular polymer and magnetic-particle. Its mechanical property can be ajustified by the external magnetic field. This characteristic makes it possible to be converted into seismic isolation structure. It is most important to prepare high permeability and the other high performance of magnetorheological elastomer material for the research, so this text discusses 10 types of magnetorheological elastomer different in ratio and raw materials. In the meantime, the magnetic to modulus and permeability are measured by test system.Experiment results showed that, when magnetic particles content is 70% , magnetorheological elastomer material 's performance reaches the best. Besides, sample performs different in the magnetic field of different magnetic field intensity. Research shows that performace promotes when the magnetic field increases. Magnetorheological elastomer isolation mechanism is desiged and simulated by magnetic circuit simulation. Its structure is optimized based on the simulation result. Because it is isolated structures, so it should respond to the earthquake as soon as possible. Therefore, the magnetic circuit design and structural design should be simple in order to reduce the reaction time and the loss of energy. Because the structure design of vibration isolator based on magnetorheological elastomer shear mode, so after the design of vibration isolator, the paper also gives a brief introduction to the simple principles about the performace test and explores the factors affecting their performance. Finally the paper also gives a introduction to control theory. Keywords Magnetorheological Elastomer Performance Testing Isolation Simulation 目 次 1 绪论 1 1.1 课题研究背景 1 1.2 磁流变弹性体研究现状 2 1.3 本文的研究内容 4 2 磁流变弹性体的制备 5 2.1 材料的选择 5 (责任编辑：qin) |