39results about How to "Reasonable weight distribution" patented technology

The invention discloses a method for estimating and calculating the strength of a power transmission pole tower material on the basis of a rough-fuzzy set. The method comprises the following steps of performing reduction on an index set by using a rough set theory; determining evaluation index weight by a method that subjective weight and objective weight are combined; according to an established evaluation order set, comprehensively evaluating and calculating the actual strength of the tower material by using a fuzzy mathematical method. The typical uncertain problem that the factorial validity affecting the strength of the tower material is not clear in an evolutionary process can be solved. The method can provide an important scientific criterion to the safety evaluation of an iron tower structure.

The invention provides a flying wing layout aircraft which comprises an aircraft body (1), aircraft wings (2), ailerons, an elevator (5) and double vertical fins (4), wherein the aircraft body (1) and the aircraft wings (2) are integrated; the ailerons (3) are positioned on the outer sections of the aircraft wings (2), and are used for rolling control in level flight; the elevator (5) is positioned at the rearmost part of the aircraft body (1), and is used for pitching control in level flight; and the dual vertical fins (4) are positioned at the rear part of the aircraft body (1), and are used for enhancing the flight direction safety in level flight. The flying wing layout aircraft provided by the invention has the advantages that the aircraft body integration technique inherits the excellent pneumatic property of the flying wings, and larger internal space is provided; the weight distribution is more reasonable, and the structure is lighter, so that the load and the voyage are increased; front air screws which are arranged in an engine and tilt and rear air screws which are fixed and can be accommodated in the vertical fins achieve the capability of vertical / short take-off and landing, and the interference to the whole pneumatic appearance of the aircraft is lowered greatly; and the connection shaft design among engines greatly improves the reliability of a dynamic system, avoids the dangerous situation of invalidity after taking off, and guarantees the flight safety in vertical / short take-off and landing.

The invention relates to a high-voltage line insulator detecting and sweeping robot which comprises three layers of supports, a plurality of clamping mechanisms, a climbing and telescopic mechanism, an electrified insulator detection device and an insulator sweeping mechanism. The clamping mechanisms, the electrified insulator detection device and the insulator sweeping mechanism are arranged on the supports and the supports are connected through the climbing and telescopic mechanism. The robot can climb along insulators and can automatically sweep and detect the insulators. The robot is compact in structure, the functions are comprehensive, climbing is stable, the robot can easily climb up insulator strings, at most three insulators are short-circuited, and the robot can be used for sweeping and detecting horizontal and suspending electrified insulator strings.

The invention belongs to the field of aircraft ditching test, and in particular relates to a floating characteristic test model. In the case of strict weight requirements, the general model has low strength and is easily damaged. The present invention proposes a floating characteristic test model, including a fuselage, wings and empennage, wherein the fuselage is divided into an upper fuselage compartment and a lower fuselage compartment by a fuselage floor, and a lifting device is installed above the middle of the upper fuselage compartment. Adjustment system, the lifting lugs can adjust the position front and rear in the waist hole of the lifting adjustment system; a vent pipe connecting the upper compartment and the lower compartment of the fuselage is arranged on the height of the fuselage floor; the lower compartment of the fuselage has There are seepage holes, and the bottom of the lower fuselage frame has overflow holes connecting adjacent compartments; black and white waterline scales are painted on the outside of the fuselage skin. It can meet the requirements of harsh test conditions.

The invention discloses an attribution method and device of information putting effects. The method comprises steps of after counting information conversion frequency and information reaching frequency brought by each channel combination consisting of a single channel combination put by an information putting party within a set period, determining the information conversion rate of each channel combination according to the information conversion frequency and the information reaching frequency brought by each channel combination; determining the weight of each single channel in each channel combination according to the information conversion rate of each channel combination; and based on the weight of each single channel in each channel combination, determining the information conversion frequency brought by each signal channel. Compared with the current attribution method of information putting effects, the provided method is characterized in that effects caused by different channel cooperation are fully considered, so it can be ensured that the distribution weight corresponding to each signal channel is quite precise and proper, and problems of improper and inaccurate attributionin the current attribution method of information putting effects are solved.