135results about How to "Predicted service life" patented technology

The invention discloses a method for predicting the remaining service life of complex equipment based on a combined depth neural network. The main steps are as follows: acquiring multi-sensor data ofcomplex equipment; Obtaining effective measurement data by feature selection; obtaining A plurality of slice samples by preprocessing; Establishing the neural network regression model which combines the attention mechanism and depth neural network; The slice samples and their corresponding labels are inputted into the neural network regression model to train the neural network regression model offline. inputting The slice samples of multi-sensor data to be predicted into the trained neural network regression model, and the remaining service life of complex equipment is obtained. Considering the data characteristics of the multi-sensor signal, the invention fully excavates the local characteristics and the time sequence information in the data, has high prediction accuracy and wide applicability, and can be widely applied to various pieces of complex equipment.

The invention relates to a method for determining an aging condition of a battery cell. The method has the following steps of a) providing a battery cell, b) recording an impedance spectrum of the battery cell, c) determining an evaluation quantity based on the measured impedance spectrum, and d) determining an aging condition of the battery cell based on a comparison of the evaluation quantity to a reference value.

The invention discloses a device for monitoring friction and corrosion fatigue damage to a twisted type lifting steel wire rope of a super deep vertical shaft. The device comprises a supporting system, a tension-tension fatigue system, a constant-temperature corrosion system, a dynamic loading system and a monitoring system, wherein the supporting system supplies supporting to the tension-tension fatigue system, the constant-temperature corrosion system, the dynamic loading system and the monitoring system; the fatigue steel wire rope to be monitored is provided with a fatigue load supplied by the tension-tension fatigue test system in the horizontal direction, a dynamic contact load supplied by the dynamic loading system in the vertical direction, and a constant-temperature corrosion environment supplied by the constant-temperature corrosion system respectively; the monitoring system monitors the fatigue load, the dynamic contact load and a change of friction force on the fatigue steel wire rope. The device can realize the friction and corrosion fatigue damage to steel wire ropes on adjacent twisted layers of a twisted type lifting machine of the super deep vertical shaft under different temperatures, corrosion solutions, different dynamic tensile loads and different dynamic contact load parameters and dynamically monitor the damage.

The invention discloses a prediction method of remaining useful life (RUL) based on lithium battery degradation stage division. The prediction method comprises the steps that according to the relationbetween health indexes and battery capacity values in a training set, a capacity prediction model is established; capacity values in a test set are predicted; the capacity values in the training setand the capacity values in the test set are divided into three stages, and a classification model is established; an RUL prediction model is established according to the health indexes and the corresponding RUL at the third stage; health indexes of a to-be-predicted RUL sample are collected, and a predicted capacity value is acquired; the predicted capacity value is input into the classification model to obtain a sample category; and if the sample is at the third stage, the health indexes of the sample are input into the RUL prediction model to obtain a predicted value of the RUL. Through theprediction method, the battery RUL at the third stage is accurately predicted according to the classification model and the RUL prediction model, and only the battery RUL at the third stage is predicted, so that the calculation amount is small.

The invention relates to a method for testing the dynamic adhesion property of a vulcanized rubber / steel wire cord. The method can be used for determining the anti-fatigue property of a vulcanized rubber / steel wire cord composite material under different tensile deformations, reciprocating strokes, fatigue cycles, fatigue frequencies and temperatures, determining the change of the adhesion strength under different fatigue conditions via an electronic tension tester, and inspecting the evolvement rule of the dynamic adhesion property of the vulcanized rubber / steel wire cord. The method is simple and reliable, low in investment, high in efficiency and good in repeatability. The method disclosed by the invention is mainly applied to the field of the vulcanized rubber / steel wire cord composite material which are used for tires, conveying belts and the like, also can be used for evaluating the dynamic adhesion properties of a rubber / fibre cord and a rubber / single steel wire, and especially can be used for simulating the service environment of the tire carcass rubber / steel wire cord during the running process of a tire well, so that a reference for designing a safe, durable and high-performance tire and predicating the service life of the tire is provided.

A method that utilizes signals from an accelerometer in resonant frequency bands or high frequency bands to, in a cost-effective manner, measure wear particle penetration of lubricant and lubricant degradation, both of which greatly affect prediction of residual service life; and, using as a basis these measurements of wear particle penetration and lubricant degradation, enables accurate estimation of residual service life for rolling bearings in the early stages.

The invention discloses a composite material combination type light energy-saving conductor spacer, which is formed in the way that a frame (1), a cross shaft sleeve (3), a wire clip body (4) and a cover plate (7) are all made of fiber composite materials on the basis of a common conductor spacer. The conductor spacer adopts the fiber composite materials and a specially optimized structure, does not generate hysteresis lag or eddy-current loss, does not generate corona, is free of corona noise and electromagnetic energy loss, and is obvious in energy saving effects. The conductor spacer is high in mechanical strength, stable in grip power, waving resistant and small in maintenance cost. By means of special optimized structure design, the conductor spacer effectively prevents abrasion caused of connection of different materials of connection joints, improves abrasion resistance, prolongs service life, is light in weight and convenient to construct and install, saves electric energy and is remarkable in economical and social benefits.

A method for predicting the usability of a relay or a contactor is described herein. A current flowing through the relay or the contactor and / or a voltage applied to the relay or the contactor is measured repeatedly, and the measured values are transmitted to an observation unit. The observation unit makes a prediction relating to the usability of the relay or of the contactor on the basis of the measured values and a model. Furthermore described are an observation unit and a battery which are configured to carry out the method according to the disclosure.