Results 31 to 40 of about 1,349 (142)
Optimization and Evaluation of Cooling Structure of Stage 1 Blade of Heavy-Duty Gas Turbine [PDF]
ObjectivesThe localization of core components of heavy-duty gas turbines holds significant importance for technological innovation, industrial upgrading, and even national security.
BI Ke +13 more
core +1 more source
Dianci bileiqi, 2011 为分析纤维添加量对陶瓷材料抗爆性能的影响,应用霍普金森压杆（SHPB）试验对3组不同纤维含量的陶瓷试样进行了冲击试验,得到了断裂强度及应变率曲线。试验结果表明:添加5%纤维的增韧陶瓷具有更高的断裂强度和更低的应变率,该成分对于改善陶瓷的动态冲击强度和抗爆性能效果最好。
李春, 陈雷, 乔莉
doaj
Study on the Compatibility and Damping Performance of the Compound System of Acrylic Rubber and Silicon Rubber [PDF]
, 2002 高分子阻尼材料由于其良好的减振消声耐疲劳抗冲击性能而在工程上得到广泛应用。但是由于单一高分子材料的玻璃化转变温度区比较窄，使得高分子阻尼材料的应用受到了限制。因此制备宽温谱高力学性能高阻尼值的阻尼材料成为近年来的研究热点。 首先对合成增容剂的丙烯酸酯单体和硅氧烷单体乳液共聚体系进行研究。改变不同的单体加料方式，研究单体加料方式对乳胶颗粒大小及其分布的影响，实验结果表明为了得到乳液颗粒均匀的聚合产物，加料方式应该采用单体乳液滴加法。改变引发剂过硫酸铵的加入量，研究引发剂对单体转化率的影响 ...
刘伟
core
Experimental study on dynamic response and residual compressive strength of composite sandwich panel with PVC foam core under single-point low-velocity impact [PDF]
ObjectivesIn this paper, an orthogonal braided glass fiber composite sandwich panel with a PVC foam core and dimensions of 150 mm×100 mm×26 mm is selected as the research object in order to study the impact mechanical properties of composite sandwich ...
Chongyi CHEN +6 more
core +1 more source
Dianci bileiqi, 2009 通过Y2O3掺杂等工艺手段制备出具有高电位梯度值的ZnO压敏电阻,并进行大电流冲击条件下的电学性能测试。实验结果表明,在掺杂0.08%（摩尔浓度）Y2O3后,试样的电位梯度值达到2 460.5 V/mm,残压比为1.48,最大通流容量达到1 263 A,能量耐受密度达到404.7 J/cm3,具有良好的抵抗大电流冲击的性能。掺杂后的试样晶粒尺寸减小到1.5μm,并且分布比较均匀,细致均匀的微观结构有利于试样电位梯度和大电流冲击下电学性能的提高。
柯磊, 蒋冬梅, 马学鸣
doaj
, 1984 当前世界范围的能源紧张和金属材料的快速消耗,促使人们对复合材料产生越来越大的兴趣。在航空与宇航领域里,对碳、硼等高性能纤维复合材料的需求量日趋增加;在船舶、汽车、电气零件、民用设施等方面,纤维增强塑料的用量也很大 ...
张双寅
core
Experimental study on dynamic mechanical properties and damage law of steel fiber concrete [PDF]
Investigating the effect of steel fiber blending schemes on the dynamic mechanical properties and damage evolution of concrete is crucial for deep-shaft construction projects.
Diyuan LI +4 more
core +1 more source
Study on properties of polypropylene fiber-modified ultrafine cement composite grouting materials [PDF]
In order to obtain high performance cement-based grouting materials for mining and expand the application of staple fiber in the field of full-length anchorage, Utilizing ultrafine silica cement as the binder material, with the addition of accelerator ...
Guangming ZHAO +6 more
core +1 more source
Gaoya dianqi, 1993 较详细地介绍了西安高压电器研究所最近研制的冲击高压数字化测量系统（IHMS）的组成、性能技术指标、软件功能等。全套系统具有强的抗干扰性能、方便的操作环境,其自动化程度高,能满足IEC1083—1“高压冲击试验用数字记录仪第一部分:对数字记录仪的要求”标准和相关的最新国家标准的要求,且性能价格比高,是一种可广泛推广的高新技术产品。
周会高, 黄德祥
doaj
Optimization simulation and crushing experiment of anti-impact energy absorption component of hydraulic support column [PDF]
Hydraulic support, being the primary supporting equipment in coal mining operations, is frequently subjected to rock burst pressure. Hence, the anti-impact energy absorption components play a pivotal role in safeguarding the hydraulic support system ...
Liyong TIAN +4 more
core +1 more source