查询词典 fictitious force

The method divides block along the intersection edge of joint faces and neglects the vertical shear force between dividing-blocks i.e. takes horizontal normal force and shear force into account; as to an assumed sliding direction, by satisfying vertical force equilibrium of every dividing-block and whole force equilibrium in the sliding direction, the factor of stability can be solved.

基于此，提出分块极限平衡分析法，该方法沿非临空面交棱将块体进行分块，在忽略分块间的垂向剪力（即可考虑分块间的水平法向力和剪切力）前提下，通过满足各分块的垂向力平衡和滑动方向上的总体力平衡，求解特定滑动方向的稳定系数。

In addition, the blank holding force that is required to avoid wrinkle and rupture during conical part deep drawing is researched. The necessity of reasonable blank holding force in pressing is expounded. From the view of mechanical analysis, the wrinkle critical condition of side-wall is derived for the first time by the stress state of side-wall, the main deformation region on blank. According to the critical condition of plastic instability for flange, side--wall, corner of punch on blank, The blank holding force in conical part deep drawing is divided into four different regions within its forming figure. The basic principle of reasonable blank holding force during stamping is summarized and provided. The mathematical model of reasonable blank holding force that avoids the wrinkle and rupture is established and verified by the finite element numerical simulation and the grid experiment method. The result shows that it is accurate and reliable.

此外，本文还研究了圆锥形件拉深成形过程中，随着拉深变形过程的进行，毛坯为避免产生起皱、破坏缺陷而对压边力的需求情况，阐明了圆锥形件拉深成形过程中压边力合理变化的必要性；由毛坯主要变形区悬空锥壁部分的受力变形情况，从力学分析的角度，首次推导得出了圆锥形零件悬空锥壁起皱失稳的临界条件；并根据主要变形区法兰、悬空锥壁及凸模圆角部分的塑性失稳临界条件，在其成形范围图中，将圆锥形件成形过程中的压边力划分为四个区域；总结并提出了圆锥形件成形过程中压边力合理变化的基本原则；建立了防止起皱、破坏缺陷产生的压边力合理变化的数学模式，并得到了有限元数值模拟及网格实验法的验证，证实了理论分析结果的正确性和可靠性。

It's no myth, though it is what physicists call a "fictitious force." If you tie a rock to a string and spin it around, it feels as though some force is trying to drive the rock away from the center of the spin.

不是呀，物理学家称这种力量为"虚拟力"，如果你用绳子绑住一块石头然后旋转它，你就会感到有种力量试图使石头远离旋转中心。

In the analysis, firstly, the flux boundary condition is used to simulate the frictional heat resource between wheel and rail. The non-steady heat transfer between the contacting surfaces of the wheel/rail, heat-convection and radiation between the wheel/rail and the ambient were all taken into consideration. Therefore, a heat coupling model of the wheel/rail in rolling/sliding is put forward to calculate the frictional temperature rise in the wheel and rail. Secondly, after the temperature distribution of wheel/rail, due to friction, is calculated, substitute the thermal load with equivalent fictitious body force and boundary distributed force loaded on the nodes of the corresponding elements. The wheel-load is applied to the center of the wheel.

首先，用热流边界条件模拟轮轨接触界面的摩擦热源，考虑轮轨间的非稳态热传导、轮轨自由表面与环境的热对流、热辐射的影响，建立轮轨滚动接触热耦合有限元计算模型，分析计算轮轨滚、滑工况下的摩擦温升；其次，以求得的轮轨温度场结果作为求解轮轨应力场的已知条件，轮载以集中力形式直接加载于轮心处，将摩擦温升引起的热载荷等效为假想体力和热边界面力，施加于相应的单元节点上，建立了轮轨热—机械载荷耦合作用的热弹性平面应力模型，分析热—机械载荷作用下的轮轨应力场。

It has the function about arithmetic auto-produce,the test bulletin auto-compile also.Debugging and system's exploitation become more convenienter.It can calculability the max force,the bend force,the no-votable bend force,the average peeling off force,the modulus of elasticity,etc.

还具有算法自动生成、试验报告自动编辑功能；大大方便了调试和系统再开发能力，可计算最大力、屈服力、非比例屈服力、平均剥离力、弹性模量等参数；使用高精度的测量仪器，集高度自动化、智能化于一体。

In the manipulation of micro-objects, the main force is the adhesion force, including Vanderwals force, electrostatic attraction and capillary force, and the weight can be neglected.

在微粒操作中，起主导作用的是表面力（包括静电力、范德华力和张力），重力可忽略。

And starting from the inertia of the large number of text introduced by centrifugal force and the Coriolis force, and through the two of the more powerful and proven set out to explain the inertia force, the inertia of the process of doing a detailed description, And applying the theory with practical ways of his predecessors found that the real issue in the application and preliminary feasibility studies, for the simple inertia force for a definition and description.

并且又从惯性力出发用大量文字来介绍惯性离心力和科里奥利力，并通过对这两种力的阐述和证明更有力的来说明惯性力，对惯性力提出的过程做了详细的叙述，并运用理论结合实际的方法对前人发现的问题进行实际中的应用和初步论证，简单得对惯性力进行个定义和说明。

Under the condition of running on the hard soil pavement with the total train mass, the riding comfort tests of the tractor-trailer combinations with the stiff and the flexible drawgear have been performed, and the dynamics longitudinal force has been studied. When the flexible drawgear was used, the theoretical results and the experimental data showed that the peak value of the dynamics longitudinal force, the peak value of the RMS of the dynamics longitudinal force, and the PSD both of the dynamics longitudinal force and of the longitudinal acceleration decreased largely.

以平稳随机路面激励状况下满载行驶作为挂接车辆的经常行驶工况，进行了挂接车辆以刚性牵引架及不同柔性牵引参数的柔性牵引装置牵引运行时的平顺性试验，柔性牵引理论分析结果与试验结果均表明，使用柔性牵引参数值接近优化值的柔性牵引装置后，动态纵向牵引力的峰值、功率谱密度峰值及均方根值均有了大幅度的降低；主车和挂车的纵向振动加速度功率谱峰值也有了很大的降低。

Factory adjustable eccentric block and the fixed angle between the eccentric block of 0 °, then the exciting force for the vibration of the motor nominal excitation force F, the different angle between the exciting force when the table below, paying particular attention to , adjust the excitation force applied, to both ends of the vibrating motor with adjustable eccentric block to adjust in the same direction the same angle.

出厂时可调偏心块和固定偏心块之间的夹角为0°，这时的激振力为振动电机的额定激振力F，不同夹角时的的激振力如下表，要特别注意，调整激振力时，要将振动电机两端的可调偏心块向同一个方向调整相同的角度。

Calculation of the inertia force and inertia force moment on the drive ring plate and tumbler eccentric axis shows that the inertia force and inertia force moment of the reducer's driving mechanism are fully equilibrant.

传动环板及转臂偏心轴惯性力和惯性力矩的计算结果表明，这种减速器传动机构的惯性力和惯性力矩理论上是完全平衡的。

His female bullfighter Lydia gradually Health love, but she was in a vegetative state after the Bulls Zhuangcheng away from her, just because Lydia's ex-boyfriend showed more affectionate than he is like love.

他对女斗牛士莉迪亚渐生爱意，却在她被公牛撞成植物人后离她而去，仅仅因为莉迪亚的前男友表现出好似比他更深情的爱。

I know of none which are not easy to answer, but what I am trying to do now is only by a series of hints to throw some light on the narrow path of legal doctrine, and upon two pitfalls which, as it seems to me, lie perilously near to it.

我不认为有什么难以回答的问题，但我现在要做的仅仅是通过一系列线索，来给法律理论的狭窄路径以及在我看来离它近得危险的两个陷阱提供一些启示。