1042 results about "Static force" patented technology

Methods of treating malocclusion and inducing osteogenesis as well as an apparatus for treating malocclusion are described. The methods and apparatus utilize cyclic forces as compared to static forces to achieve their results.

A process for accommodating, improving or transmuting random static and dynamic human functions to an object is provided. A device is selected which includes a proximal member and a distal member which articulate relative to one another at an interface. Energy is transmitted through the interface with a predetermined and variable efficacy. The interface is configured to permit static force to have perpendicular and parallel components relative to a primary plane of the interface and to permit a dynamic force to have a parallel component relative to the primary plane. An inertia at the interface is affected in terms of positive or negative affinity between the members and a proximity of the members to one another at the interface such that either the static or dynamic forces attract the members to one another at the interface, such that either the static or dynamic forces attract the members toward one another at the interface urging a contact whereby a tendency for a motion of one member relative to another at the interface is resisted and a tendency for the interface between the members to remain in a statically opposed position is assisted. Alternatively, the static and dynamic forces repel the members from one another at the interface urging a separation whereby a tendency for a motion of one relative to another at the interface is assisted and a tendency for the interface between the members to remain in a statically opposed position is resisted.

A scale high-speed composting treatment method of organic wastes comprises the following steps: the organic wastes are taken as fermentable substrates; thoroughly decomposed materials are reused as desiccants and strains; the physicochemical property of the organic wastes is adjusted to the condition required by aerobic fermentation microorganism; forced aeration fermentation is carried out in airiness fermentation plants; the fermentation temperature of fermentation materials is increased to over 70 DEG C in a very short time and high temperature fermentation is maintained for 1-15 days; organic wastes with high water content are quickly dehydrated to below 20-60% in short time and then are transferred to a static forced aeration fermentation system for secondary fermentation; therefore, the water ratios of the fermentation materials are further reduced, the fermentation temperature drops to the ambient temperature and always remains the same, and the materials are thoroughly decomposed. The method realizes scale high-speed composting treatment of the organic wastes and boosts resource treatment of such organic wastes as municipal and industrial sludges.

A method and device for connecting a bone conductor transducer contained in a housing to the skull bone for the transmission of vibrations characterized by, that the housing has at least one surface, which is placed against the bottom plane of a recess shaped in the temporal bone with a static force exceeding the dynamic signal forces.

The invention provides a diamond rope saw static force cutting method, relating to a diamond cutting method. In the invention, an adopted hydraulic pressure diamond rope saw is driven by an hydraulic motor to move at a high speed around the cut surface of a cutting object (4) so as to cut the cutting object (4); the grinding material of diamond rope saw (5) is diamond particles, so the diamond rope saw can be used for cutting stone, reinforced concrete or other hard materials; the power source of the cutting is the hydraulic motor, a hydraulic pump is driven by the hydraulic motor to operate smoothly; and the hydraulic motor can be distantly controlled by a high-pressure oil pipe to reduce vibration and noise in cutting process and enable the cutting object (4) is cut and separated stably. The invention has the advantages of high safety and efficiency and environment protection.

The invention provides a plane type ejection launch carrier-borne aircraft front undercarriage static force test loading apparatus. The apparatus comprises a plane type test bench rack, an undercarriage, a lateral load loading device, a course load loading device, a vertical load loading device, an ejection load loading device, a hamper load loading device and a mooring load loading device. Based on a conventional loading technology, a set of loading equipment capable of applying ejecting, hampering and mooring loads is designed, and the vertical, course, lateral, ejection, hampering and mooring load loading of an ejection launch carrier-borne aircraft is finished on a single test bench, no replacement of tools is needed, all the loading points are fixed in the frame type test bench, a self-balance bearing system is formed when loading is performed, the bearing of the test bench is quite small, the fixation is facilitated, and the precision is high.

A primary earth penetrating mandrel formed of a hollow shell steel plate octagonal in cross-section has an upper end and a blunt lower end joined by an upwardly and outwardly tapered wall. The mandrel is driven downwardly in the earth to simultaneously form a vertical tapered cavity while compacting the sidewall of the cavity to provide structural integrity. The mandrel is then moved upwardly from the bottom of the cavity and aggregate is deposited in the bottom of the cavity following which the mandrel is lowered so that its blunt lower end engages the deposited aggregate and densifies the aggregate by vertical vibratory action and static force with these steps being repeated until the pier top is near the surface of the earth at which time the upper aggregate portions are densified by either the primary mandrel or a secondary mandrel having a substantially larger lower end surface than the lower end surface of the primary mandrel. A second embodiment includes a conduit in the primary mandrel for injecting concrete or grout into aggregate previously deposited in the cavity.

The invention which belongs to the field of civil engineering equipment relates to a full-automatic, digital and large frozen soil direct shear apparatus. The large frozen soil direct shear apparatus which comprises a shear box, a refrigeration system of an upper shear box, a refrigeration system of a lower shear box, a vertical servo loading and monitoring system, a horizontal servo loading and monitoring system, and a measurement and control system is to determine the shear strength of the freeze-thaw interface of the frozen soil or determine the shear strength of full frozen soil and full thawy soil. The size of a frozen soil sample in the embodiment of the invention is 305mm*305mm*200mm, static force and a layered compacting method are adopted to prepare remolded soil samples of different initial water contents and dry densities for shear tests; temperature control systems of the upper shear box and the lower shear box are adjusted to control the temperatures of soils in the shearboxes to guarantee the shear plane to be superposed with the freeze-thaw interface of the frozen soil sample. The direct shear apparatus of the present invention solves problems that the difficulty of testing the shear strength of the freeze-thaw interface is large, the shear tests of coarse grain soil are difficult and the like and provides reasonable design parameters for civil engineering and traffic engineering in cold or highly cold regions.

A rotational rate sensor having a substrate and a Coriolis element is proposed, the Coriolis element being situated over a surface of a substrate; a driving arrangement being provided, by which the Coriolis element is induced to vibrations parallel to a first axis; a detection arrangement being provided, by which an excursion of the Coriolis elements is detectable on the basis of a Coriolis force in a second axis that is provided to be essentially perpendicular to the first axis; the first and second axis being parallel to the surface of the substrate; sensor elements that are designated to be at least partially movable with respect to the substrate being provided; a force-conveying arrangement being provided; the force-conveying arrangement being provided to convey a static force effect between the substrate and at least one of the sensor elements.

The invention discloses a dynamic and static testing system for a multifunctional wharf structure. The dynamic and static testing system comprises a detachable large-rigidity bearing frame, a vertical loading actuator, a horizontal loading actuator, a multi-channel controller, an electro-hydraulic servo oil source system, a data collecting system as well as a displacement and force sensor. The maximum clearance size of the loading frame is 4.5m* 4.5m*4.5m (L*W*H); a testing space can be randomly adjusted according to test sample requirements; a loading mode is that vertical and horizontal combined loading can be finished through two 10-100 t static vertical actuators and 3-20t dynamic horizontal actuators; integral or member stress performance tests of the high pile frame wharf structure with large water level difference under a combined effect of various complicated working conditions such as gantry crane load, piling load and ship load are simulated. The invention further provides a dynamic and static testing method for the wharf structure, which can be used for really simulating the stressed deformation performances of the wharf structure under various complicated stressed conditions and can be also used in stress experiments of similar structures.

The invention discloses a static force load testing device for a concrete beam. The device comprises a base (1), a crossbeam (2), and an upright post (3) provided with an external thread, wherein the upright post (3) is respectively fixedly connected with the base (1) and the crossbeam (2) in a manner of screw-thread fit; a hydraulic jack (6), a load transducer (8) and a load allocation beam (7) are sequentially mounted on the bottom surface of the crossbeam (2); first spherical hinges (10) used for transmitting load to the concrete beam (19) are respectively arranged at the two ends of the bottom surface of the load allocation beam (7); an adjusting hole (5) is formed in the top of the base (1); the base (1) is fixedly connected with a support seat (9) used for supporting the concrete beam (19) through the adjusting hole (5); a second spherical hinge (11) is arranged at the top of the support seat (9); a linear displacement sensor used for detecting the deformation of the concrete beam (19) is mounted on the base (1); the hydraulic jack (6) is used for applying the load to the concrete beam (19), and a computer (16) is used for analyzing and processing acquired signals so as to monitor the test process; the crossbeam (2) and the support seat (9) are regulated to adapt to load tests of concrete beams of different sizes; the overall device can be dismounted and mounted, and is convenient to store and transport.

The invention discloses a support system for a long-span cable-stayed bridge, which relates to the technical field of bridge engineering. The support system consists of nine parts including main girders, bridge towers, stay cables, transitional piers, transverse wind resisting bearings, longitudinal viscous dampers with limiting function, longitudinal sliding bearings with limited transverse rigidity, transverse dampers, and telescopic devices. Compared with the prior support system for the long-span cable-stayed bridge, the support system of the invention has the characteristics that the longitudinal viscous dampers with limiting function are arranged between the main girders and the bridge towers; and the longitudinal sliding bearings with limited transverse rigidity and the transverse dampers are arranged between the main girders and the transitional piers. The support system provides effective rigidity and damping for the long-span cable-stayed bridge to ensure that the static force and the dynamic force responses of the bridge are controlled in an acceptable scope; the structural stress is definite; and the applicability is strong.

Forces are minimized in an object supported relative to a surface by providing a first, preferably static force sufficient to retain the object is position when at rest, preferably through a clamping arrangement having a first actuator, measuring or predicting an acceleration and applying a second, preferably dynamic force corresponding to the acceleration. The first and second forces are preferably arranged to be additive or reinforcing but the arrangement can be made fail-safe at the expense of increased power consumption by arranging the first force in accordance with the maximum anticipated acceleration and counteracting the first force with the second force for lesser or zero accelerations. The second force is preferably provided by a clamp of arbitrary configuration which can be moved into and out of engagement with the object. By minimizing forces applied to the object in such a manner, damage such as creep and propagation of crystal lattice dislocations over time can largely be prevented.

The present invention relates to an engineering method for producing biochar soil from dredging sediment, and belongs to the field of solid waste resource utilization. The biochar soil is prepared by uniformly mixing the raw materials of dredging sediments, poultry manure and dry straw according to a certain weight proportion, adjusting the C/N ratio and moisture content of the mixture, adding a certain proportion of a nitrogen retention and water-retaining agent; carrying out windrow composting by a mechanical turning and static forced ventilation combined manner for about 30 days, maintaining the pile at 55-65 DEG C for 10-12 days until the full maturity of the compost products. The biochar soil is utilized according to actual need. The invention realizes large-scale engineering treatment of dredging sediment, poultry manure and crops straws, provides an ecological way to solve the non-point source pollution caused by dredging sediment and poultry manure, and air problem caused by crops straws burning; and the compost products can be used for ecological engineering construction, so as to organically combine environmental benefits, economic benefits and ecological benefits.

The invention relates to a method for performing structure analysis on a steel pylon by using ANSYS software, which is applied to static analysis and dynamic analysis of the steel pylon. The method comprises the steps as follows: firstly completing modeling of the steel pylon through a self-control program, and generating an APDL (ANSYS parametric design language) command stream file which can be executed by the ANSYS software; then starting the ANSYS software in the background, and utilizing the form of sending command stream to the ANSYS software to complete structure analysis on the steel pylon; and finally displaying the data result and the graphic result in an assigned position of the self-control program. According to the invention, with the combination of the self-control program and the ANSYS software, the shortages of higher use difficulty and poorer pertinence in structure analysis of the steel pylon by the ANSYS software are solved, so that the structure analysis of the steel pylon is more convenient and faster, and a favorable analysis platform for technicians is provided.

The invention relates to a lower-bound limit analysis method of bearing capacity considering rock translation and rotation effects at the same time, and belongs to the technical field of rock slope stability analysis. According to the method, a rigid block unit is scattered as a geometry system of a rigid rock and a structural plane, the normal force, shearing force and bending moment of the structural plane are used as unknown quantities, a static permission stress field satisfying an equilibrium equation considering the translation and rotation effects of the rigid block unit, structural plane shear yield conditions, structural plane tensile yield conditions, structural plane rotational yield conditions and static boundary conditions is constructed, an overload coefficient is used as a target function, and a lower-bound linear mathematic programming model is built; the linear mathematic programming model is solved by means of an interior point algorithm, a strength reserve coefficient is solved by means of an iterative method at the same time, and the lower-bound solution and corresponding yield area of the overload coefficient or the strength reserve coefficient of the jointed rock slope are acquired. The method has the advantages that the concept is clear and the computational accuracy is high, and the method can be applicable to bearing capacity analysis of translational or rotational failure of the jointed rock slope.

The invention provides a biaxial tensile strength testing fixture. With the fixture, variable-proportion biaxial tensile strength testing of a cross sample can be carried out with a uniaxial testing machine. The fixture is characterized by comprising an upper chuck, a primary lever crossbeam, a primary connecting rod, a secondary lever crossbeam, a secondary connecting rod, a loosening and tightening nut, a wire rope connector, a wire rope, a grooved flywheel, a bearing pedestal, a bearing, cross guide rails, a clamp with a slide block, a test piece, a base and a lower chuck. With the fixture, biaxial tensile strength testing of various load proportions can be implemented with the uniaxial testing machine. The fixture distributes pulling force at four directions in virtue of the lever balance theory, and pulling force at two axial directions of the test piece can be solved through static equilibrium, so usage of force sensors is avoided; moreover, the uniaxial testing machine is made full use of, the problems of lack of special biaxial strength testing equipment and high testing cost are overcome, and technical support is provided for determination of material performance and structural strength.

The invention provides a front undercarriage static force test loading device for a frame-type catapult-assisted take-off shipboard aircraft. The front undercarriage static force test loading device comprises a frame-type test stand, an undercarriage, a lateral load loading device, a course load loading device, a vertical load loading device, an ejection load loading device and a trapping load loading device. The front undercarriage static force test loading device is one of loading technologies in the prior art, the loading device is designed to realize ejection application and load trapping, vertical, course, lateral, ejection and trapping load loadings of the catapult-assisted take-off shipboard aircraft are accomplished on the test stand, tool replacement is not required, all loading points are respectively fixed in the frame-type test stand, a self-balance bearing system is established during loading, bearing force of the test stand is relatively small, and the loading device is convenient to fix and has high precision.