In order to accurately evaluate the reliability variation law of gear transmission system of flying vehicle, 3000 h reliability is selected as the reliability evaluation index. The design life index conforms to the TBO life range commonly used in aviation transmission system. A single gear reliability model considering contact...
Based on the research of bionics theory, combined with the characteristics of automobile gear meshing transmission, and based on the model test, the bionic micro wear-resistant shape on the surface of the ring block sample is optimized, and the concave bionic wear-resistant gear is designed and processed; At the...
Gear transmission device is an important component widely used in mechanical equipment. Today, with the rapid development of industrial production, the volume of industrial gear device is smaller and smaller, the power is larger and larger, and the operating conditions are more and more harsh. Therefore, gear lubrication has...
For the gear transmission system of flying vehicle, the meshing times of each gear in the system are different at the same time, so it is necessary to carry out kinematic analysis of the gear transmission system to keep the independent variables in the reliability model consistent. Assume that...
The gear transmission system of flying vehicle studied in this paper is composed of one-stage planetary gear train and two-stage bevel gear transmission. The planetary gear train is composed of sun gear s, three idler gears I, three planetary gears P and ring gear R, hereinafter referred to as...
Traditional flying vehicles refer to land and air amphibious vehicles that can drive on the ground and fly in the air. In recent years, with the rise of the concept of air traffic, the vertical takeoff and landing aircraft with only air flight function is also called flying vehicle....
With the development of the concept and technology of flying vehicle, automobile gear transmission system has become one of the important bottlenecks limiting its service performance and reliability. Therefore, the dynamic reliability analysis model of gear transmission system of flying vehicle considering the correlation between strength degradation and failure...
Based on the modeling method of system level theory, the gear transmission system is divided into three subsystems: primary DSI planetary gear train C1, secondary bevel gear train C2 and tertiary bevel gear train C3. The estimated parameters of correlation coefficients of Gumbel cop ⁃ ula functions at all...
The central transmission structure of the bulldozer developed by a company is shown in Figure 1. When the whole machine works for 800 ~ 1000 hours, it is found that the single track does not move and cannot turn. After disassembling the central drive, it is found that the...
Gear is the main body of power transmission. Gear transmission is the most widely used transmission form in mechanical equipment. Its main feature is that it has high efficiency and can realize high-power mechanical power transmission; The transmission is accurate and reliable, which can realize the power transmission between...