Beijing Institute of Technology

University of Shanghai for Science and Technology

Harbin Marine Boiler and Turbine Research Institute

Yanjiong Yue

Dongdong Zhang

Lihui Zhao

Lidong Jiang

Shan Chang

Lin Fu

Shouwen Yao

Hongzhi Ji

Shenggang Luan

Xunmin Yin

Yingchun Bai

A high-power and heavy-load back-to-back planetary gear test bench for full speed and full loading testing, which solves transmission shaft's high processing cost problem and the inability to test in a simulated environment, includes a driving device, first and second shaft couplings, a speed increaser, a speed and torque meter, a back-to-back planetary gearbox closed power system, a clamping groove body coaxially sleeved on an axial positioning protrusion, a clamping component embedded inside an axial positioning groove, and a shaft segment coaxially installed on the clamping groove body to provide an axial displacement by the clamping component to tightly clamp the clamping groove body and the axial positioning protrusion, therefore the clamping groove body generates a radial displacement under an axial pushing of the clamping component and is expanded in the radial direction to tightly connect with the axial positioning groove; and a marine test component for marine environment simulation.

High-power and heavy-load back-to-back planetary gear test platform

Disclosed is a robust topology optimization design method of a damping composite stiffened cylindrical shell box structure, comprising: constructing working load data, and obtaining circumferential target modal frequencies based on the working load data and the stiffened cylindrical shell box; laying constrained layer damping materials on the stiffened cylindrical shell box to construct a damping composite stiffened cylindrical shell box; constructing interval parameters based on the damping composite stiffened cylindrical shell box, and obtaining modal loss factor based on the interval parameters; constructing an objective function based on the modal loss factors, constructing design variables and constraint conditions based on the damping composite stiffened cylindrical shell box, integrating the objective function, design variables and constraint conditions to form an interval robust topology optimization model; updating the design variables based on the interval robust topology optimization model, and obtaining an optimized topology configuration of the damping composite stiffened cylindrical shell box.

Robust topological optimization design method of damping composite stiffened cylindrical shell box structure

Growing community of inventors

Harbin, China

Yanjiong Yue