30results about How to "Effective guidance design" patented technology

The invention discloses a design method and structure of a sparse wireless energy transmission time inversion mirror, belonging to the technical field of electromagnetic wave wireless energy transmission. The method of the present invention includes the following steps: setting a discretized energy receiving area and a dense unit TRM composed of basic units, and determining the energy transmission index; based on the channel parameters of the dense unit TRM, determining the optimal active unit position, number and The gain compensation factor meets the side lobe threshold index; according to the characteristics of the selected active unit, a sparse active unit TRM is designed to meet the efficiency threshold index. The structural feature of the sparse TRM obtained by using the method of the present invention is that the aperture size of the active unit is an integral multiple of the basic unit, which can be conveniently realized by forming an array of the basic unit. The invention can solve the problems of excessive number of wireless energy transmission TRM active units, complicated power feeding and high system cost, and realizes the sparse design of TRM in various environments while meeting the expected energy transmission index.

The present invention disclosed a loose simulation method of the bearing bolts under the basic incentive.The method of the present invention includes steps: S1. Establish a 3D geometric model of the junction of the bolt connection structure; S2. Create the finite element model of the bolt connection structure according to the 3D geometric model of the bolt connection structure; S3. According to the bolt connection structureThe finite element model is exposed to the finite element modeling, and the bolt connection loose simulation calculation is performed.In the invention, the cabin segment is connected to the loosening simulation method under the basic incentive of the present invention, and the simulation method simulates the phenomenon of pre -tightening force during the loosening process of the loose bolt connection.Design of connection structure.

The present invention proposes a CO 2 The method for obtaining the blasting strain energy conversion coefficient and the equivalent explosive calculation formula is based on the carbon dioxide blasting funnel test and the explosive blasting funnel test, comparing the rock strain energy coefficients under different blasting sources in the same lithology, and obtaining the carbon dioxide blasting strain energy conversion coefficient α ; The carbon dioxide No. 2 rock emulsion explosive equivalent W calculated by the comparison formula c The equivalent charge Q of No. 2 rock emulsion explosive obtained from the test c , calculate and obtain the equivalent correction coefficient δ of the No. 2 rock emulsion explosive of carbon dioxide blasting, and obtain the equivalent calculation formula of the No. 2 rock emulsion explosive of carbon dioxide blasting; this method can be effectively applied to the pre-test of the parameter design of the rock breaking hole network of carbon dioxide phase change blasting; the present invention The beneficial effect of the provided method is that the operation is simple, the test cost is low, the feasibility is good, and the carbon dioxide blasting can effectively guide the design of rock hole network parameters.

The invention relates to a method for evaluating the immune time of industrial process parameters considering the operation mode of the power supply system. Firstly, the topological network is constructed, the current switch state is read, and the node connectivity analysis is performed; Judgment; then establish the fault tree of the disturbed process; finally use the single equipment PIT to get the process comprehensive PIT. The invention can make the evaluation result closer to the actual situation, and has more engineering application value.

The invention provides an air-conditioner installation simulating and testing table which comprises a support structure, a middle shelf and an installing shelf, wherein the middle shelf is rotationally connected with the support structure through a rotary shaft which extends along a first direction; the installing shelf is rotationally connected with the middle shelf through a middle shaft which extends along the second direction; and an inner unit installing part for installing an inner unit of an air-conditioner to be tested is installed on the installing shelf. With the adoption of the air-conditioner installation simulating and testing table, various installation angles of the inner unit of the air-conditioner can be set, various after-sale installation conditions of the air-conditioner can be simulated and tested, the design can be instructed effectively, and the after-sale fault rate is reduced.

The invention discloses a modeling method of an oral cavity model used for an individual three-dimensional orthodontic force test. The modeling method comprises the following steps of: 1) performing CT data acquisition; 2) rebuilding a three-dimensional model of an oral cavity tissue; 3) correcting bended dedendums of molars with multiple dedendums; 4) designing a parodontium; 5) removing an amplified tooth model from an alveolar bone model without dedendum fossa; 6) designing a guide plate used for locating a correct position of a tooth in the tooth fossa; 7) designing a base of the oral cavity model; 8) processing the teeth, the alveolar bone and the guide plate by using a hard material through a rapid proto-typing technology; 9) mixing a silica gel material for sealing and an elastic material to serve as a simulated material of the parodontium; and 10) filling the simulated material of the parodontium into the dedendum fossa on the alveolar bone and then inserting the teeth to finally obtain an oral cavity orthodontic force measurement and simulation model. The modeling method of the oral cavity model used for the individual three-dimensional orthodontic force test can obtain precise correcting force and torque, has relatively good reliability, and can efficiently guide an individual orthodontic force test model of an individual orthodontics schematic design.

Provided is a method for determining the unlocking critical charge quantity of a separation nut. The method for determining the unlocking critical charge quantity of the separation nut comprises the steps of (1) carrying out M cold air separation tests in the state of pre-tightening torque for design and installation of the separation nut, recording a cold air pressure value at the unlocking moment of the separation nut during each cold air separation test, and obtaining a mean value P of the cold air pressure values at the unlocking moments of the separation nut during the M cold air separation tests through calculation, wherein the M is no smaller than 20; (2) determining energy RT which can be generated by the unit mass of main charge according to the type of main charge of an igniter adopted for the separation nut, and estimating the critical charge quantity m[M] of the separation nut through the formula , wherein the V represents the capacity of an unlocking containing cavity of the separation nut; (3) determining the minimum main charge quantity of the igniter adopted for the separation nut according to the critical charge quantity estimation value m[M] obtained through the step (2) and on the basis that the effective charge compacting density is ensured. According to the method for determining the unlocking critical charge quantity of the separation nut, the test cost of critical charge quantity exploration tests of the separation nut can be greatly reduced, the test period of critical charge quantity exploration tests of the separation nut can be greatly shortened, and the design of the charge quantity of the igniter of the separation nut can be effectively directed.

The invention relates to a novel method of building a structure-activity relationship model of modified biomaterial adsorbing heavy metal ions and application thereof. The method includes the steps of 1, selecting biomaterial which is low in price, easy to obtain and rich in lignocellulose; 2, measuring an index of removal rate of heavy metal ions in water by means of a series of physiochemical modifications; 3, preprocessing acquired test data; 4, selecting the type of a molecular structure descriptor of the biomaterial, performing calculation, and building a molecular structure descriptor set; 5, screening molecular descriptors on the basis of low-rank modeling; 6, building the structure-activity relationship model of modification conditions, post-screening molecular descriptors and the index of removal rate of heavy metal ions in the water (waste water) on the basis of a support vector machine, and optimizing parameters. The method has the advantages that the design and synthesis of high-performance adsorbent can be effectively guided, the development cycle of efficient adsorbent of heavy metal ions is greatly shortened, and waste of financial and material resources is avoided.

The invention relates to a prediction technology of a leakage rate of an existing contact mechanical seal. By utilizing a seal interface topography evolvement rule in the wear process of a movable ring and a stationary ring, and a contact compression stress variation rule of primary and secondary seal interfaces due to the wear-down of the movable ring and the stationary ring and the stress relaxation of an O-shaped ring, the topography parameters of the seal interfaces and loads on the movable ring and the stationary ring seal interfaces, the O-shaped ring and the internal diameter and external diameter contact interfaces of the O-shaped ring are determined after the mechanical seal runs for a certain time, and the characteristic sizes of percolation channels between the movable ring and the stationary ring seal interfaces and the O-shaped ring and the internal diameter and external diameter contact interfaces of the O-shaped ring are obtained by a percolation theory, a contact mechanics theory and a fractal theory at the moment, the effect of surface tension and centrifugal force of the sealed medium is considered, and then the leakage state of the existing contact mechanical seal is predicated by a Navier-Stokes equation. The method is simple and practical, the accident problems caused by frequent replacement or expiration of the mechanical seal can be effectively solved, and the safety and reliability of equipment are improved.