内燃机轴系,Internal Combustion Engine Shafting
1)Internal Combustion Engine Shafting内燃机轴系
1.Study on the Coupled Torsional, Axial and Bending Three-Dimensional Vibrations ofInternal Combustion Engine Shafting Basing on Exact Dynamic Stiffness Matrix Methods;基于精确动态刚度矩阵法的内燃机轴系扭转、纵向及弯曲三维耦合振动研究
英文短句/例句
1.torsional vibration of engine crankshaft内燃机轴系扭转振动
2.Study on Parameter Identification System of I.C. Engine Based on Genetic Algorithm;基于遗传算法的内燃机轴系参数识别系统研究
3.Research on Numerical Method of Crankshaft Torsional Vibration of Multi-Cylinder Engine Based on Transfer Function基于传递函数的多缸内燃机轴系扭振数值计算方法研究
4.Analysis on the Multi-body Dynamics of a Multi-cylinder Engine Crankshaft多缸内燃机曲轴系统多体动力学分析
5.Coupling Researches on Tribological and Dynamical Behaviors of the Crankshaft-Bearing System of Internal Combustion Engines;内燃机曲轴-轴承系统摩擦学动力学耦合研究
6.crankcase ,for internal combustion aircraft engines曲轴箱,航空内燃机用
7.Development of Portable ICE Fault Diagnosis System Using Crankshaft Angular Vibration Signals便携式内燃机曲轴角振动故障诊断系统研制
8.Practical method for vibration analysis on internal combustion engine crankshaft system内燃机曲轴模型系统振动分析的实用方法
9.Coupling Researches on Dynamics Tribology Stiffness and Strength in the Crankshaft-Bearing System of Internal Combustion Engine;内燃机曲轴—轴承系统动力学摩擦学刚度和强度耦合研究
10.Optimization Design of Bearing for Internal Combustion Engine Considering Crankshaft Strength;计及曲轴强度的内燃机轴承优化设计
11.Structure of axle box for heavy-duty 8-axle diesel locomotive重载单节八轴内燃机车轴箱结构型式
12.Dynamic Method to Calculate for Shaft Center Trajectory of Bearing of Internal Combustion Engine求解内燃机曲轴—轴承轴心轨迹的动力学方法
13.crankcase for compression-ignition internal combustion engines (excl. aircraft)曲轴箱,用于压烯式内燃机（不包括航空用内燃机）
14.Wearing of crankshaft journals and crankpin is one of the most key indexes for evaluating the working life of internal combustion engine.内燃机曲轴轴颈的磨损量是衡量内燃机寿命的一个重要指标。
15.The Technical Research of the Forging Crankshaft in the Enging Locomotive;内燃机车柴油机锻钢曲轴的工艺研究
16.The Key Technology Study on Fault Diagnosis System of I.C. Engine Based on Angular Vibration of Crankshaft;基于曲轴角振动信号的内燃机故障诊断系统关键技术研究
17.Study on Fault Diagnosis System of I.C. Engine Based on Angular Vibration of Crankshaft;基于曲轴角振动信号的内燃机故障诊断系统研究
18.Internal combustion engines--Main and connecting rod bearings--SpecificationGB/T1151-1993内燃机主轴瓦及连杆轴瓦技术条件
相关短句/例句
the crankshaft assembly of the internal combustion engine内燃机曲轴轴系
3)torsional vibration of engine crankshaft内燃机轴系扭转振动
4)I.C.E. bearing内燃机轴瓦
5)internal combustion engine bearings内燃机轴承
1.Friction and lubrication simulation analysis ofinternal combustion engine bearings are studied.对内燃机轴承摩擦与润滑特性仿真分析方法进行了深入研究 ,提出了从数学建模、分析计算直至仿真结果实现的一整套软件实施方案 。
6)internal combustion engine crankshaft内燃机曲轴
1.Due to wide application and complicated structure and various function of theinternal combustion engine crankshaft, many problems appear such as forms of vibration diversity and a variety of forms of coupled vibration, which can easily lead to noise and a wide range of vibration problems, and even result in damage to the shaft and the instability of system.内燃机曲轴由于应用范围广泛,结构复杂,功能繁多,所以振动形式多样,并且具有多种耦合振动形式,很容易引发多种振动问题,产生系统轴系的损坏、工作不稳定以及工作噪声等问题。
延伸阅读
动力机械：内燃机轴系扭转振动内燃机轴系由钢材或球墨铸铁制成﹐既有弹性﹐又有惯性﹐并有自身的固有频率。在简谐性扭矩的激励下﹐它会产生强迫扭转振动﹐当激励扭矩的频率趋近于轴系的固有频率时﹐扭振振幅急剧增大﹐即出现共振现象。强烈的共振会破坏内燃机的正常工作和各缸的均衡﹐导致齿轮撞击﹑噪声增大﹑功率下降﹑零件损坏﹐甚至断轴。轴系的固有频率 轴系的固有频率取决于轴系的弹性特性和惯性特性。弹性特性以柔度(单位扭矩引起的变形)或刚度(单位弧度变形所需的扭矩)表示。惯性特性以转动惯量表示。柔度和惯量越小﹐固有频率越高。轴系往往不限于一个固有频率。激励扭矩 激励扭矩来源于气缸内的气体压力和往复惯性力﹐是以内燃机工作周期为基本周期的扭矩﹐可以分解为若干简谐扭矩。往复惯性力在高频时甚小﹐可以略而不计。对于轴系扭振起激振作用的﹐主要是气缸内气体压力所形成的扭矩(见内燃机动力学)。在船舶内燃机轴系上还存在螺旋桨不均匀受力所形成的激励扭矩。轴系将出现共振时的内燃机转速称为临界转速。当无阻尼轴系处于共振时﹐其振幅会无限增大。但是﹐实际上总是存在阻尼的﹐当阻尼所耗的功与激励扭矩给轴系的功相等时﹐振幅就不再增大。当轴系的共振振幅或扭振的附加应力大于许用值时就必须采取振幅消减措施。这些措施大致有﹕避免在临界转速及其附近连续运转﹔通过改变轴系的弹性特性或惯性特性来改变其固有频率﹔通过改变内燃机的点火次序以减小轴系的激励功﹔在轴系中加装扭振消减装置﹐以加大其阻尼功。常用的扭振消减装置有干阻式减振器和液阻式减振器﹑内阻式减振器和摆式减振器。
