8results about How to "Reduce dynamic stress" patented technology

The invention relates to the technical field of multi-energy complementary power generation, and discloses an industrial steam supply peak shaving system and method coupling fused salt heat storage and solar energy, and the industrial steam supply peak shaving system comprises a coal-fired power generation system and an industrial steam supply system; in the heat storage mode, the boiler, the steam cooler and the condenser are sequentially connected; in the heat release mode, the high-pressure heater, the primary feed water heater and the low-pressure cylinder are sequentially connected through pipelines; and the feed pump, the secondary feed water heater and the boiler are connected in sequence. In the low ebb of the electrical load, solar energy is used for heating fused salt to store heat, and part of high-temperature steam is extracted from steam-water circulation of the improved coal-fired power generation system to store the heat in a heat storage device and does not enter a steam turbine for power generation; the power load output is adjusted by adjusting the thermal load output of the thermodynamic system in the power generation process, and load decoupling of the boiler and the steam turbine is achieved. And in the electrical load peak, the stored heat energy is released back to steam-water circulation, and the electrical load of the coal-fired power generation system is increased.

The utility model discloses a microwave rain radar mounting mechanism of an unmanned aerial vehicle, and relates to the field of radar mounting structures of unmanned aerial vehicles. The airfoil comprises the airfoil and the main frame body, the radar mechanism is arranged above the main frame body, the radar mechanism comprises the radar main body, the airfoil is provided with the sealing block, the clamping groove, the through hole and the protection mechanism, the sealing block of a circular structure can be better matched with the clamping groove, a larger contact area is provided, and therefore the sealing effect is enhanced, and the service life of the airfoil is prolonged. The clamping design enables the installation process to be simpler, more convenient and faster, meanwhile, the accuracy and stability of the installation position are guaranteed, meanwhile, the engineering plastic material is light, low in cost and suitable for non-bearing or secondary structural components, the weight of the whole installation mechanism is reduced, and the installation cost is reduced. The protection can prevent the connection points from being influenced by severe weather, dust, dirt or other external factors, so that the connection stability and safety are ensured.

The invention discloses a motor stator coil winding clamping device, which relates to the technical field of motor stator winding, and comprises a winding machine body, wherein an operating table is installed on the front side of the winding machine body, a control base is installed on the upper surface of the operating table, a coil assembly is installed above the control base, a symmetrical winding mechanism is arranged above the operating table, and a tension balancing mechanism is arranged inside the operating table, which dynamically adjusts the winding height of the stator module synchronously, that is, the stator module is synchronously raised when it approaches a winding turntable, and is synchronously lowered when it is away from the turntable. This winding method ensures that the copper wire can always remain in a taut state during output, and effectively avoids tension fluctuations caused by changes in the copper wire's stretchable space. Relying on this constant tension control, not only the compactness of the copper wire winding is improved, making the spacing between each layer of copper wire more uniform, but also the tightness of the copper wire fitting on the stator coil skeleton is significantly enhanced, thereby improving the winding quality.

The utility model discloses a steel structure beam column connecting structure with damping damper, including steel beam and steel column, be provided with damping damper between steel beam and steel column, the damping damper includes shell, piston, piston rod and damping medium, the shell fixed connection is established on the steel column, the piston sets up in the shell inside and with shell sliding seal connection, one end of piston rod is fixedly connected with the piston, and the other end is out of the shell and is fixedly connected with steel beam, the shell inside is filled with damping medium, the piston reciprocating motion in the shell under the action of vibration, generates damping force through extruding damping medium to consume vibration energy. The utility model improves the damping performance of steel structure beam column connecting structure to enhance the anti -seismic performance and wind -resistance of steel structure building.

The invention provides a blisk active detuning non-integral-order vibration reduction method, and belongs to the technical field of aero-engines, and the method comprises the following steps: obtaining a rotor tip pressure pulsation non-integral-order frequency, segmenting a blisk into a sector cyclic symmetry model, carrying out modal analysis, obtaining inherent frequencies corresponding to first twelve orders of vibration modes, and carrying out modal analysis on the inherent frequencies; when the inherent frequency of a certain order and the non-integral-order frequency meet a preset condition, the corresponding vibration mode is a non-integral-order sensitive vibration mode; the aerodynamic damping of the rotor blade under different pitch diameters of the non-integral-order sensitive vibration mode is calculated, and the corresponding pitch diameter when the aerodynamic damping is minimum is obtained; the method comprises the following steps: measuring the frequency of all rotor blades of an actual blisk under a non-integral-order sensitive vibration mode, and circumferentially dividing the rotor blades into M frequency interval bands based on the actual frequency; and performing frequency correction on the rotor blade based on the M parity and the pitch diameter difference value corresponding to the minimum M and aerodynamic damping so as to realize active detuning. According to the method, non-integral-order vibration reduction design can be realized without changing pneumatic design parameters of the blade.

The present invention relates to the technical field of knife die production control, and discloses a production control method, device, equipment and storage medium for intelligent molds. The method comprises: performing deep neural network analysis on material property data of the knife die to obtain a first cutting parameter set, and creating a first cutting path scheme for the knife die; performing finite element analysis and real-time temperature monitoring on the cutting process of the knife die based on the first cutting parameter set and the first cutting path scheme to obtain cutting temperature distribution data; predicting the thermal expansion behavior of the knife die based on the cutting temperature distribution data, and generating a thermal expansion compensation strategy; performing deep reinforcement learning analysis and multi-objective optimization on the first cutting parameter set and the first cutting path scheme based on the thermal expansion compensation strategy to obtain a second cutting parameter set and a second cutting path scheme. The present invention can adaptively optimize cutting parameters and adjust cutting paths in real time, thereby realizing a high-precision and high-efficiency intelligent mold production process.

The invention belongs to the technical field of metal composite materials, and provides a high-toughness corrosion-resistant aluminum-magnesium composite board and a preparation method and application thereof. The composite board comprises a first aluminum alloy layer, a magnesium alloy layer and a second aluminum alloy layer which are sequentially stacked. The aluminum alloy layer comprises the following components: 3.0 to 5.5 percent of Mg, 0.3 to 1.2 percent of Mn, 0.1 to 0.4 percent of Si, 0.15 to 0.4 percent of Fe, 0.05 to 0.75 percent of Cu, 0.1 to 0.3 percent of Sc and the balance of Al; and the magnesium alloy layer comprises the following components: 2.0%-4.0% of Al, 1.5%-4.0% of Ca, 0.2%-1.0% of Mn, 0.1%-0.5% of Be, 0.5%-2.0% of Sn and the balance of Mg. By reasonably setting alloy components and selecting an asynchronous rolling process, the problems that the interface bonding strength in the aluminum-magnesium composite material is insufficient and a brittle and hard second phase is easy to generate are effectively solved.

The application discloses a composite buffer type low-damage brake performance enhancing device, which comprises a brake disc, a first brake assembly and a U-shaped block arranged on the brake disc, a blocking mechanism arranged on the U-shaped block, a driving mechanism arranged on the U-shaped block and a second brake assembly arranged on the driving mechanism, and the U-shaped block is inverted U-shaped; the second brake assembly comprises double-cylinder friction mechanisms and single-cylinder friction mechanisms which are simultaneously arranged on the output end of the driving mechanism, an E-shaped block is arranged on the double-cylinder friction mechanisms, and the lower middle part of the E-shaped block is slidably connected with the upper end of the single-cylinder friction mechanisms; the blocking mechanism is used for blocking the E-shaped block, so as to block the movement of the double-cylinder friction mechanisms and make the single-cylinder friction mechanisms be able to be compressed on both sides of the brake disc; air inlet mechanisms and air outlet mechanisms are arranged on the upper end of the E-shaped block, and a first air outlet groove for air outlet is arranged on the blocking mechanism. The application has the advantages of high-efficiency heat dissipation, adjustable composite brake mode, low abrasion and buffering and damping.