Therefore, it is necessary to analyze the mechanism of the fatigue damage of bridge expansion device and estimate its fatigue life by theories and experiment.
因此有必要通过实验及理论研究等工作，对公路桥梁伸缩装置进行疲劳破坏机理分析和疲劳寿命估算。
The large displacement expansion joint is an expansion device between the main bridge and the approach.
大位移伸缩缝是连接主桥与引桥的伸缩装置。
The working principles and technical characteristics of the hydraulic expansion device of stainless steel clad pipe are introduced.
介绍了一种不锈钢复合管液压胀接装置的工作原理及其技术特点。
As the expansion device of amplitude, horn is used to focus energy and enlarge the mechanical vibration of the particle displacement or velocity.
变幅杆作为振幅扩大装置，主要作用是把能量集中，将机械振动的质点位移或速度放大。
In our country bridge technical standards and engineering quality test evaluation standards, bridge expansion device hasn't be stipulated specifically.
我国桥梁技术规范及工程质量检验评定标准中，对桥梁伸缩装置未作具体技术指标规定。
Make the three-dimensional finite element model about plate rubber expansion device. And then the models are applied serviceable load and displacement.
建立板式橡胶伸缩装置的三维有限元模型并施加符合实际工作状况的载荷与位移边界条件。
Make the three-dimensional finite element model about plate rubber expansion device. And then the models are applied serviceable load and displacement.
建立板式橡胶伸缩装置的三维有限元模型并施加符合实际工作状况的载荷与位移边界条件。
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