查询词典 muff coupling

Presents the design of longitudinal control for ASTOVL lift-fan aircraft, a multi-variable, strong-coupling, complicated nonlinear system to make the system nonlinear offset and decouple, and the method used for linear system in designing the system to gain expectant flying qualities and the combination of aerodynamic control surfaces with thrust vectors to delay the control surfaces getting into saturation, and the minimum N-norm generalized inverse theorem of weighted generalized inverse adopted to apportion the moments commands, which make the control surfaces gain appropriate deflection and the simulation results to verify the dynamic inverse control laws designed really make the system nonlinear offset and decouple; when one command is given, only this output will response, and others do not response; when all commands are given together, the responses will be just the linear superpose of the response of each command, therefore the operation of the pilot will be simplified greatly.

摘 要： ASTOVL升力风扇飞机是多变量、强耦合、复杂的非线性系统，采用非线性动态逆理论设计控制律以实现系统的非线性对消及解耦，然后，采用线性系统的设计方法对系统进行设计，以使系统获得期望的飞行品质。同时，考虑到ASTOVL升力风扇飞机是由气动舵面和推力矢量融合作用的，为了延缓各舵面进入饱和的时间，采用加权广义逆中的极小N-范数广义逆定理分配力矩指令，从而使各舵面达到适当的偏转角。并将所设计的控制律进行了仿真，结果验证了所设计的动态逆控制律使系统实现了非线性对消和解耦，单个指令作用时，只有该项响应，其余不受影响；所有指令作用时，其结果就等于单个指令作用时的线性叠加，这样使驾驶员的操纵大大简化而易于控制，从而大大降低了飞行事故率。

Particularly, the weight configuration matrix is not necessarily symmetric or irreducible, and the inner-coupling matrix need not be symmetric.

特别地，文中的构形矩阵不必要是对称或不可约阵，内部耦合阵也不必为对称阵。

The asymptotic synchronization in a lattice of x-coupled nonidentical Lorenz equations is considered, the external coupling matrix is an n×n irreducible symmetric real matrix having zero row sums and nonpositive off-diagonal elements.

考虑外部耦合格式为n×n阶实对称不可约，行和为零且对角线以外的元素非正的矩阵，内部耦合格式为仅有x-分量参与耦合的非恒同Lorenz格点系统的渐近同步。

The completely diagonalized Hamiltonian matrices of 3d2/3d8 ion configuration in the trigonal symmetry have been established by irreducible representation method. Taken into account the influence of the spin-spin coupling interactions omitted in previous publications, the spectra and the constants of crystal structure and zero-field splitting parameters of CsNiCl3 crystal and CsNiCl3: Mg2+ crystal are calculated and the influence of the doping to the spectra, the constants of crystal structure, zero-field splitting parameters and Jahn-Teller effect are studied. The results show that doping can change the structure of crystal which brings about the changes in the spectra and zero-field splitting parameters as well as Jahn-Teller effect.

应用不可约张量理论构造了三角对称晶场中3d2/3d8态离子的45阶可完全对角化的微扰哈密顿矩阵，在考虑了以前工作中被忽略的自旋-自旋耦合作用的基础上计算了CsNiCl3晶体和CsNiCl3：Mg2+晶体的基态能级、晶体结构、零场分裂参量和Jahn-Teller效应，研究了掺入Mg2+对CsNiCl3晶体的光谱、零场分裂参量及Jahn-Teller效应的影响和自旋单重态对基态能级的贡献，发现掺杂使得晶体结构产生畸变，从而改变晶体光谱的精细结构和零场分裂参量，不改变Jahn-Teller效应的分裂规律但改变分裂的大小。

And the coupling configuration matrix in network is not required irreducible.

并且不需要网络的耦合构造矩阵是不可约的。

The effect of track irregularity on coupling vibration of vehicle-track-bridge system needs to be studied.

轨道不平顺对车轨桥空间耦合振动的影响是一个有待研究的问题。

Therefore, how to exchange and integrate these isomerism data with low coupling, low price and conveniently has becom...

因此，如何低耦合、低代价、方便地将这些异构数据进行交换和集成已成为当前研究的一个热点问题。

Based on the non-equilibrium thermodynamic coupling model,the isotherm,isopiestic and cross section phase diagrams for diamond growth in C-H-O system are calculated.

基于非平衡热力学耦合模型计算得到三元体系中生长金刚石的等温、等压及竖直截面相图。

Adopting the Biot's wave equation of transversely isotropic saturated soils and taking the influence of the frequencyon on the viscous coupling effect between the solid and liquid media into account, the reflection on the half-space surface of transversely isotropic saturated soil is studied. It challenges traditional view of only considering low frequency couple effect in saturated soils.

采用横观各向同性饱和土体的Biot波动方程，考虑频率对固液两相粘滞耦合作用的影响，深入研究了弹性波在横观各向同性饱和土体半空间的反射，克服了以往饱和土体仅考虑低频耦合作用的做法。

The coupling model of hydraulic and mechanic was used with the iteration solving method.

分析时考虑了水力模型和力学模型的耦合，采用水力和力学模型逐步迭代的方法求解。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。