33 results about "Aerospace systems" patented technology

A system and method that determines whether a heat exchanger within a complex networked system is fouling is provided. The system and method includes training classifiers indicative of a plurality of fouling conditions associated with the heat exchanger and testing the classifiers with optimal sensor data from optimal sensors to determine whether the fouling is being experienced by the heat exchanger.

An aerospace system includes a leveling device defining two plane levels (yz-plane and xz-plane). The plane levels are included within an inertial measurement unit and each of the plane levels includes two capacitance controlled oscillators. Each of the capacitance controlled oscillators includes a quad capacitor bubble sensor.

The invention relates to a superconductive and energy-storage magnetic suspension flywheel with a high energy density, which can be used as energy storage equipment of electric power systems, vehicles and aviation and aerospace systems. The superconductive and energy-storage magnetic suspension flywheel mainly comprises a base, a sealing cover, a stator shaft mounting frame, a main shaft, an axial magnetic bearing, radial magnetic bearings, a motor, a wheel body assembly and a superconductive magnetic bearing, wherein the main shaft is fixed in the center of an inner cavity of the base through the stator shaft mounting frame; the axial magnetic bearing, the radial magnetic bearing, the motor, the radial magnetic bearing and the superconductive magnetic bearing are mounted from top to bottom; and the wheel body assembly is located in the center of the main shaft and is connected with the main shaft through the axial magnetic bearing and the radial magnetic bearings. All assemblies are reasonable and compact in layout, non-contact suspension of a flywheel wheel body is realized by using combined actions of the superconductive magnetic bearing and the common magnetic bearings, and the high energy density is realized by using high-speed rotation of the carbon fiber wheel body.

The invention discloses a novel composite film preparation method with high light transmittance and excellent electromagnetic shielding effectiveness, which comprises the following steps: step 1, substrate surface treatment; 2, preparation of silver nanowire and preparing silver nanowire dispersion; 3, preparation of a silver nanowire transparent conductive film by a wire rod scrape coating method; 4, acid treat that surface of the silver nanowire film; 5, firstly placement of the substrate obtained in the step 4 on a glue homogenizer, uniformly coating PEDOT: PSS on the surface of the substrate, post-treating the dried composite film with DBSA, and spin-washing and drying the DBSA on the surface of the composite film with deionized water for many times to obtain silver nanowires; and 5, wherein the silver nanowires are coated on the surface of the substrate uniformly with PEDOT: PSS, and the silver nanowires are deposited on the surface of the composite film; and the silver nanowiresare deposited on the surface of the composite film. (PEDOT: PSS) composite film. A silver nanowire is prepared by the method of the invention (PEDOT: PSS) composite film has the characteristics of high light transmittance, outstanding electromagnetic shielding effectiveness and good conformability, which solves the problems of electromagnetic compatibility and protection application of traditionalshielding materials in aerospace system.

The invention relates generally to a novel cooling system and fuel preheating system for use in an advanced, high speed aerospace vehicle. A hydrocarbon fluid, such as fuel is accelerated to supersonic conditions within a cooling channel located proximate a high-temperature flight surface. The hydrocarbon fuel absorbs a heat load as it passes through the cooling channel in the flight control surface prior to the fuel being directed into the aircraft engine.

A self-managing system that uses autonomy and autonomicity is provided with the self-* property of autopoiesis (self-creation). In the event of an agent in the system self-destructing, autopoiesis auto-generates a replacement. A self-esteem reward scheme is also provided and can be used for autonomic agents, based on their performance and trust. Art agent with greater self-esteem may clone at a greater rate compared to the rate of an agent with lower self-esteem. A self-managing system is provided for a high volume of distributed autonomic/self-managing mobile agents, and autonomic adhesion is used to attract similar agents together or to repel dissimilar agents from an event horizon. An apoptotic system is also provided that accords an “expiry date” to data and digital objects, for example, that are available on the internet, which finds usefulness not only in general but also for controlling the loaning and use of space scientific data.

The invention belongs to the technical field of aerospace system data communication. and discloses a configuration processing method of a data message in a 1553B bus BC mode based on a management table. The method comprises the following steps: a structure is defined to describe the use state of a message space, in the initialization process, a bus memory area is registered in a message managementtable, data transmission from a BC to an RT is managed based on the message management table, data transmission from the RT to the BC is managed based on the message management table, and the messagemanagement table is cancelled in data transmission dynamic management. According to the invention, the defects of a data message configuration processing method in a BC mode of the existing 1553B busare overcome; a method based on a management table is provided, a structure is designed to describe the state of a 1553B message space, the message management table is adopted to manage receiving andsending of data between a BC and an RT, and the problem of efficient message management in the process of processing a large number of messages at high frequency through a 1553B bus is solved.

The invention provides a reliability analyzing method of an initiating explosive device testing system, and relates to the field of quality detection of initiating explosive devices in aerospace systems. The reliability analyzing method comprises the following step ofproviding a reliability evaluation method based on a dynamic bayes network for the reliability of a flexible testing system of an initiating explosive device in an aerospace system. The aerospace-stage initiating explosive device has extreme requirements forthe reliability, and the reliability has to reach 100%. The quality of theinitiating explosive device is determined by adopting an ignition test, the initiating explosive device belongs to a disposable product, only a limited sampling ignition test is performed on each batch of initiating explosive devices to evaluate the overall quality characteristics of the initiating explosive device, and a testing system is an important guarantee to accurately evaluate the qualityreliability of the initiating explosive device. Since the varieties of theaerospace initiating explosive devices are large, and initiating explosive devices of different varieties are equipped with different testing instruments and different testing channels and have different parameter configurations. The reliability of the testing system is related to time and product task batches, a dynamic bayes network structure chart of the testing system is established by using the dynamic bayes network evaluation method, the timing sequence causality relationship between different time slices is combined with the causality relationship in time slices, and dynamic analysis and prediction are performed through quantitative reasoning.

The invention discloses a surface modification technique for magnesium alloy used for parts such as engine cases of aerospace systems. The surface modification technique specifically comprises the step of degreasing, pickling, surface conditioning, plasma surface ceramization and secondary organic spraying are sequentially conducted on the magnesium alloy; and the emissivity of a finally-obtainedplasma oxidized ceramic layer/organic coating composite treatment film reaches 0.88 and is reduced by six levels under the corrosion current density, the weight loss ratio caused by abrasion is reduced by one level, and the friction coefficient is reduced by one time. According to the surface modification technique for the magnesium alloy, the plasma oxidization technique is adopted for basic treatment of a matrix, so that the corrosion-resistant ceramic cylinder with good binding force is formed to support an organic coating; and the surface of the ceramic layer is of a porous structure, so that the specific surface area of a whole workpiece is enlarged, and the binding force of the organic coating is improved. Through the black coating formed through organic spraying, the corrosion resistance of the workpiece is further improved, the friction coefficient is decreased, and the using requirement for high emissivity is met.

The invention belongs to the field of hybrid integrated optical transmit-receive design, and discloses an optical transmit-receive circuit and an optical transmit-receive device. The optical transmit-receive circuit comprises a driver, a laser array, a detector array, a TIA amplifier, an MTFA jumper fiber and a control circuit; the driver is sequentially connected with the laser array, the MT-FA jumper fiber, the detector array and the TIA amplifier; the MT-FA jumper fiber is provided with a light receiving end and a light transmitting end, and the control circuit is connected with the driverand the amplifier; the optical transceiving device comprises an optical transceiving circuit, a high-speed differential line, and a bottom plate, a substrate, a frame and a cover plate which are sequentially connected from bottom to top. The adopted device is simple in structure, capable of being well compatible with a modern microelectronic process and a hybrid integration process, low in deviceand assembly cost, small in size, and capable of effectively replacing an existing electric transmission mode and being applied to broadband data and image transmission in radar and aerospace systems;the bottleneck problems of large signal capacity, large data transmission loss and the like in the system are solved.

Provided are methods and systems for a modular multi-stage aerospace system having a first-stage vehicle that lifts and accelerates and is capable of achieving velocities of Mach 2.5, the first-stage vehicle powered by at least one turbine engine, and capable of autonomous and remote control; and a second-stage atmospheric flight vehicle capable of velocities of Mach 5.0, the second-stage atmospheric flight vehicle powered by at least one hydrogen-fueled turboramjet engine, and capable of carrying an internal payload; wherein the first-stage vehicle is adapted to support the second-stage atmospheric flight vehicle, as the first-stage vehicle reaches velocities sufficient to launch the second-stage atmospheric flight vehicle, and the second-stage atmospheric flight vehicle is capable of travel 12,000 miles.