系统的

Because the error mainly comes from theresonant region, the error correction method can only be used in resonant region, andcan effectively improve the efficiency of the statistical analyzing solutions. Two types of the mistuned bladed disks, whose friction damping are blade dryfriction damping and blade-to-blade dry friction damping, are modeled respectively. Amulti-harmonic method which can employ the fast Fourier transformationtechnique is proposed to investigate the vibratory response of the bladed disks withthese two types of nonlinear friction damping. Formulations of the solution for thesetwo types of motion functions are deduced. The characteristics of the forced responseof the bladed disks with these two dry friction damping are analyzed and summarizedunder various system parameters. The vibratory response of the bladed disk with dryfriction scatter mistuning is investigated.

针对叶盘系统中两类主要的非线性干摩擦阻尼形式，分别建立了具有叶片干摩擦阻尼和叶间干摩擦阻尼的失谐叶盘系统的非线性力学模型；提出了一种可利用快速傅立叶变换技术的多谐波分析方法；分别推导了具有这两类干摩擦阻尼形式的叶盘系统运动方程的求解公式；在各种系统参数条件下，研究了干摩擦阻尼失谐叶盘系统的受迫振动响应特性；对具有干摩擦散乱失谐的叶盘系统振动响应进行了研究，分析总结了干摩擦散乱失谐对叶盘系统振动响应特性的特殊影响规律。

The skyhook principle can be combined in this control rule, which can further attenuate the vibration of the car-body in lower frequency range, but the acceleration response in higher frequency range tend to be larger.

分析和仿真实验表明，半主动悬挂控制系统的时滞不影响系统的稳定性，但影响系统的响应性能；过大的系统时滞将使系统的响应加速度增大，平稳性变差，但不致使系统失稳。

On the one hand, we analysis fuel supply strategy, and design the gas supply system; On the other hand, we focused on the design of the gas supply system for some major installations, such as: the cylinder, the cylinder valve, the shuted valve, filling gas Valves, gas pressure regulator, heating regulator, etc., we also design the gas supply system layout and installation under the bus frame.

一方面分析了电控天然气发动机燃料供给策略，设计了天然气供给系统；另一方面重点设计了天然气供给系统的一些主要专用装置，如：气瓶、气瓶阀、手动关闭阀、充气阀、燃气压力调节器、加温器等，对其它所需部件按国家标准进行了选用；同时还根据公交车车架，对天然气供给系统布置与安装进行了分析与设计。

In the second chapter it designs the system by modularization, makes the overall program of system design and paint frame diagram of the system.

第二章通过将系统模块化设计，设计出系统的整体实现方案，画出系统框图。

The concept of Total Load Control considers an area as a ecological system, and rustics the pollution load into this system within a bearable limitation to keep an ecological balance in the system.

总量控制就是将一个控制单元作为一个生态系统，将排入这个系统的污染物总量控制在能被这个系统所能承纳，而不破坏这个系统平衡的管理措施。

Afterwards, dynamic tests to machining center were processed by using sine wave excitation, pseudo random excitation and impact experiment methods.(3) The frequency-domain parameter identification method was used after the experiments, through which system mode parameters, system characteristic curve and system mode shape were obtained.

运用频域模态参数识别法，得到了系统的模态参数，绘制出了系统的特性曲线，并得到了系统的振型；对所得结果进行了模态拟合验证，较好地揭示了系统的系统特性，为动态优化设计奠定了基础。

Moreover, we proposed a flow diagram of the quasi-continuous heat recovery system containing a solid-gas heat pump, and a global mathematical model of the system. This model can be used for determination of the operation conditions. Under the optimized cycle, the recovery efficiency can reach 121W/kg.

在此基础上，提出一个拟连续回热型气-固化学热泵制冷系统流程，并建立全系统数学模型，用最优化方法确定系统的最优操作条件，在最优循环周期下，可获制冷功率121W/kg。

Aimed at the problem of multi-motor system synchronized switching directionprocess control, this dissertation studied the reliability and stability of the wire winding system which directly influenced on stability of roller wire speed and performance of main axis transmission system. Mathematical model of transmission system is built, and main parameters of transmission system are designed byresearching each essential factor which influences sensitivity and precision of transmission system.

针对高速走线换向过程控制问题，分析了加工辊走线速度和主轴传动系统的性能对走线系统的安全性和稳定性的影响，建立传动系统数学模型，研究影响传动系统灵敏度、精度及抑制线速度扰动的各个要素，综合设计传动系统。

The model aims at minimum annual cost (including operating cost and equipment depreciation cost) of whole evaporation system (including two sequential system——multi-evaporation system and multi-level preheating system). The tempreture of flesh vapor, the tempreture of condenser, effective heat-transfer temperature difference of vari-effect, and outlet solution temperature of vari-level preheater were both decision variables.

优化设计数学模型以整个蒸发系统(包括多效蒸发和多级预热两个序贯系统)的年总费用(包括系统年操作费用和设备年折旧费用)最小为优化目标，以生蒸汽温度T0、冷凝器中二次蒸汽温度Tk、各效蒸发器有效传热温度差Δti及各级预热器溶液出口温度tpj为决策变量。

Vacuum booster with brake master cylinder is a key part of automobile braking system. Its pneumatic fatigue test system consists of pneumatic subsystem, hydraulic subsystem, electronic control subsystem, etc. It is one kind of complex nonlinear systems.

真空助力器带主缸总成是汽车制动系统的关键增力部件，其气动疲劳试验系统由气动子系统、液压子系统、电控子系统等多个子系统构成，属于复杂的非线性系统。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。