39 results about "Unidirectional coupling" patented technology

A unidirectional coupling damping pulley includes a threaded central spindle extending into a pulley hub, a friction stopper ring and a positioning sleeve pressed against the inner wall of the pulley hub, a protruding ring formed on the outer diameter of the central spindle, in which the central spindle is sleeved with a damping washer forming a step on one side of the damping washer, the central spindle is sleeved with a damping spring, the damping washer is sleeved and in rotation fit with a friction sliding ring, a friction spring is sleeved around the damping spring, the friction spring locks up with the friction stopper ring and the friction sliding ring through friction, and the friction spring can be separated from the friction stopper ring and the friction sliding ring alternately.

The invention discloses an implement method and an implement system for three-dimensional fluid-solid one-way coupling. The implement method includes: dispersing triangular meshes at the boundary of a solid into particles, and performing homogenized sampling on boundary particles; calculating state of fluid particles in the solid, wherein the state includes density of the fluid and the fluid particles at the boundary of the solid, pressure and viscous force of the fluid particles, and surface tension of the fluid particles; updating speed and position information of the fluid particles by a numerical integration mode; correcting the speed and the position of the fluid particles when the fluid particles penetrate through the boundary of the solid, and thereby achieving three-dimensional fluid-solid one-way coupling. According to the method and the system provided by the invention, stability during boundary treatment is increased, when pressure and viscous force is successfully simulated and penetrating effect is prevented, computation complexity is greatly reduced, and macroscopic effect of the surface tension is effectively simulated, furthermore, the mesh distorting phenomenon in the case of directly simulating aggregation force does not appear.

The invention discloses an eddy-current loss analysis method for permanent magnet wind generators. The eddy-current loss analysis method includes the steps of 1), dividing an acquisition mode of eddy-current losses into an MFS single-code coupling mode and an EFEM edge finite element coupling mode according to difference in formation mechanism and component of eddy-current losses; 2), respectively combining component models with the same coupling mode prior to mesh partition; 3), setting unified load for the combined model; 4), performing load transferring on the models established in the MFS single-code coupling mode by an interpolation method, and solving field distribution in staggered iteration through a multi-field solver; 5), solving transient electromagnetic fields and temperature fields by a parallel algorithm; 6), reflecting the electromagnetic fields and the temperature fields of different component models on the corresponding models. An electromagnetic field and temperature field coupling method of single-code two-way coupling analysis and one-way coupling analysis of the edge finite element coupling method are applied to subregional-type acquisition of the eddy-current losses of stator cores, rotor permanent magnets and grooves, and consequently, the eddy-current losses are converted into thermal power and are reflected in temperature field distribution accurately and visually.

A method and a device for a reaction-free and integrity-protected synchronization of log data between at least one first network and a second network is provided. The log data is copied by means of a monitoring device upon being transmitted from devices to a first log server in the first network. Metadata of the log data is additionally generated in a first managing unit, the metadata including time information, integrity information, origin information, and / or completeness information. The copied log data and the corresponding metadata are transmitted to the second network via a unidirectional coupling unit in a reaction-free manner. The lot data is checked and ordered chronologically in the second network using the metadata. Thus, a synchronized copy of the log data from the first network is promptly provided in the second network.

The present invention relates to a standing wave detection device and method of a multi-frequency combiner, the device comprising a first single chip microcomputer, first to second wave detectors, first to switching switches, number and signal input chain of the multi-frequency combiner The first one-way coupler with the same number of roads, the first narrow-band filter and the second one-way coupler with the same number of signal input links as the multi-frequency combiner; the first one-way coupler is connected in series In the signal input link of the frequency combiner, the second unidirectional coupler is connected in series in the signal output link; the first to second detectors are respectively connected to the first single-chip microcomputer, and the first detector is also connected to the first switch, the second The second wave detector is also connected to the second switch, the first switch is also connected to the first unidirectional coupler, the second switch is also connected to the first narrowband filters, and each first narrowband filter is also connected to the third switch, The third switch is also connected to the second one-way coupler, and the solution of the present invention can improve the accuracy of standing wave detection.

The present invention relates to devices, transmissions and universal mechanical couplings (D.T.A.M.U.) with forces of different magnitudes and directions. The invention relates to a device, a transmission and a universal mechanical coupling, which make it possible to convert rotational forces of different magnitudes and directions applied to the same rotary shaft (1) and obtain a unidirectional movement in the output rotary shaft (2) As possible, the output rotary shaft (2) can be used in any medium. The device consists of an input shaft (1), an output shaft (2) and two devices (3 and 5) and (4, 9 and 6) for connecting said two shafts (1 and 2), the two Each of the shafts (1 and 2) has at least one one-way coupling (7a, 7b) and, in its most basic form, is not provided with a rotary inverter (15a).

The device (110) has a unidirectional coupling element (124) divided into partial coupling elements (125, 126). One of the partial coupling elements is fixed at a load retaining area (112) or another coupling element (119) or a lever arm by a fine adjustable bent support (127), and the other partial coupling element is fixed at a calibration lever arm by another fine adjustable bent support (128). The partial coupling elements are aligned to each other such that traction or compression force is transmitted from the latter support to the former support by the divided coupling element. An independent claim is also included for a gravimetric measuring instrument comprising a pressure sensor for detecting surrounding pressure.