1) pulsed over-current characteristics
过电流承载特性
2) Loading Characteristic
承载特性
1.
According to setting up the limited analysis model of air pipe,using ABAQUS to analyze air pipe s vertical,loading characteristic and the trend of Transform,the paper offers dependable design basis to the research of new air pipe.
空气导管的垂向、偏转承载特性是衡量空气导管设计优劣的重要指标,本文通过建立空气导管的有限元分析模型,利用ABAQUS软件分析空气导管的垂向、偏转承载特性及其相应承载工况下的变形趋势,为新型空气导管的研究开发提供了可靠的设计依据。
3) bearing characteristics
承载特性
1.
Experimental study on bearing characteristics of dry jet mixing pile composite ground under flexible load;
柔性荷载下粉喷桩复合地基承载特性试验研究
2.
For researching reinforcement effect and bearing characteristics of long-short cement-soil piles compos-ite foundation in deep soft soils,the test in situ on the bearing characteristics of long-short cement-soil piles composite ground in deep soft soils are carried out.
为了研究水泥土长短桩复合地基在深厚软土的加固效果及其承载特性,实测了长桩、短桩和桩间土顶面应力,探讨了这种复合地基桩土应力比及其变化规律。
4) bearing characteristic
承载特性
1.
Analyze bearing characteristics of socketed pile with new grey relationship theory model;
用新的灰关联理论模型分析嵌岩桩承载特性
2.
The stresses of long piles,short piles and soil were measured by the tests in situ on the bearing characteristics of cement-soil long-short piles composite foundation in deep soft soils;pile-soil stress ratio of composite foundation with cement-soil long-short piles and its variation rule with the load were studied in deep soils.
通过水泥土长短桩复合地基承载特性试验,实测长桩、短桩和桩间土顶面应力,探讨了采用水泥土长短桩方法对深厚软土进行处理时,复合地基桩土应力比及其变化规律。
3.
On the foundation of the above,the rock bearing characteristics of floor in coal seam were also investigated.
在此基础上研究了底板岩石的承载特性。
5) bearing behavior
承载特性
1.
The bearing behavior and reinforcement mechanism of a composite bolt pile was studied through numerical calculation with the FLAC soft.
数值模拟结果及工程检测结果均表明:复合锚固桩改善了单根锚固桩桩体局部承载特性,桩体承载综合有效因子明显增加,桩体承载能力大大提高。
2.
Because of the cavities in the Karst district,the problem of bearing behavior of pile foundations will be inevitably met in the design and construction of bridges in the district.
由于岩溶的存在,在岩溶地区进行桥梁工程设计与施工,将不可避免遇到岩溶地区桩基承载特性问题。
3.
The laws of variations of pile side friction resistance,pile tip resistance and compression-induced pile shaft deformation thereof under axial load are studied,and the effect of grouting at pile base on the bearing behavior of the pile is analyzed.
通过单桩离心模型试验,获得了荷载与沉降关系曲线、桩身轴力分布,研究了大直径超长桩在竖向荷载作用下,桩侧摩阻力、桩端阻力、桩身压缩变形等变化规律,分析了桩端注浆对承载特性的影响,验证了设计参数。
6) bearing properties
承载特性
1.
Based on the FEM results of combined action of substructure and subgrade, its bearing properties are disscused.
通过考虑地基、基础共同作用的有限元数值计算 ,对其承载特性进行了分析 ,指出在一定条件下使用靠背式基础是可行的。
2.
As the technique of pressure grouting under the tip of bored piles is introduced,it betters bearing properties of piles,improves bearing capacity and reduces settlement.
结合某工程桥梁桩基现场试验 ,对卵石层中的钻孔桩采用桩端压力灌浆技术进行了试验研究并对灌浆后桩的位移、侧摩阻力、端阻力等承载特性进行了分
补充资料：负序电流承载能力
负序电流承载能力
negative phase sequence current carrying capability
fuxu dlonl一u ehengzo一nengl-负序电流承载能j7(negative phase一sequenceeurrent carrying eapability)同步发电机能承受三相不平衡负载的负序电流标么值和时间的限额。同步发电机在故障状态下短时承受不平衡负载的能力以负序电流标么值12的平方和时间t(s)的乘积12’t表示。这是不考虑发电机转子向外散热而定的。此值也可作为整定发电机负序过电流保护的参考。连续负序电流承载能力以负序电流相当于额定定子电流IN的百分数表示，此时发电机任一相最大定子电流不能超过额定值。同步发电机在三相不平衡负载下运行时，转子表面将由定子负序电流感应出两倍工频的涡流(见旋转磁动势)，该电流通过没有电气绝缘的转子槽楔、齿部、阻尼绕组和护环构成的环路而引起局部过热;在匝数较多的励磁绕组两端也会出现两倍工频的高达20一3。倍额定励磁电压的过电压，因此负序电流应有一个限额.对同步发电机的负序电流承载能力各国的标准有不同的规定，一般的取值范围见表。同步发电机负序电流承峨能力┌──────┬─────────┬────────┐│发电机型式 │连续运行负序电流 │故障短时负序电流││ │承载能力几/I、(%) │承载能力I22t(s) │├──────┼─────────┼────────┤│凸极发电机 │12 │40 │├──────┼─────────┼────────┤│隐极发电机 │ │ │├──────┼─────────┼────────┤│转子间接冷却│10 │15~30’ │├──────┼─────────┼────────┤│转子直接冷却│5~8’. │5~10“. │└──────┴─────────┴────────┘ 中国国家标准规定:空气冷却为305，氮气冷却为155。 中国国家标准规定:300 MW及以下为8%和8s，600 MW为7%和75。几份的限额可以通过理论分析或作发电机暂态负序渔升试验求得。对直接内冷的大型发电机，为了提高负序电流承载能力，在转子端部装设阻尼环和在转子的箱楔下设t全转子长的阻尼条。除此之外，阻尼绕组还对抑制发电机的振荡和避免在系统发生次同步谐振时的负阻尼现象起有利作用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条