An outburst of coal and gas is a major hazard in underground coal mining. It is generally accepted that an outburst occu......

磁流变阻尼器采用传统动态密封装置在长时间服役后会产生漏液问题,严重影响阻尼器的性能与寿命。为此,本文提出将粘弹性材料与活塞......