Gang Zhao

Hunan University · State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body

Non-probabilistic models can quantify the uncertainties of engineering systems with limited data, which is significantly convenient and economical for engineering applications. However, a key issue in the application of non-probabilistic methods to vibration problems is how to address the time-varying uncertainties, especially when the correlation...

Vibration reduction has always been one of hot and important topics in mechanical engineering, especially for the special measurement instrument. In this paper, a novel limb-inspired bionic structure is proposed to generate negative stiffness and design a new quasi-zero stiffness isolator via torsion springs, distinguishing from the existing tensio...

In this paper, a novel method for non-probabilistic convex modelling with the bounds to precisely encircle all the data of uncertain parameters extracted from practical engineering is developed. The method is based on the traditional statistical method and the correlation analysis technique. Mean values and correlation coefficients of uncertain par...

In order to understand the geological information of the moon and explore the components of lunar soils and their property of bedding distribution, taking lunar soil samples back to Earth is one of the most important tasks in modern unmanned lunar exploration project. However, because of the inherent flowing characteristics of lunar soil, the distu...

By combing continuum topology optimization (TO) method and lattice structure technique, a sandwich aircraft spoiler with a high stiffness-to-weight is designed. TO method is served to produce the shell of the aircraft spoiler and the lattice structure, used as cores, is employed to support the shell. TO problem is established as maximizing the stif...

A tubular woven bag covering a rigid tube, known as a crucial component in flexible tube coring system adopted for future lunar soil coring missions, which dynamic performance, especially the stick-slip behavior, might largely affect the reliability and quality of the lunar soil coring, should be explored in depth. Here we have developed analytical...

A tubular soft bag covering a rigid tube, known as a coring system, is a key tool in deep lunar soil coring. The dynamic performance of the coring system is of critical importance, largely determining the quality and efficiency of the lunar soil coring. The main contribution of this study focuses on analyzing the mechanism of the force dragging the...

To solve the phenomenon of load sickness in which the transfer path of the weak load disappears by using the traditional topology optimization method, a simple and effective strategy of sensitivity hierarchical filtering was proposed. The loads were stratified by magnitude, and the strain energy corresponding to the structure was calculated. On thi...

The properties of the simulated lunar soil, which are of great importance to guide the investigation on the lunar due to the rarity and preciousness of the lunar soil, are extremely complex such that their precise probability distributions are hard to obtain but their bounds are easy to gain. In this study, an innovative non-random analysis method...

Structure/material requires simultaneous consideration of both its design and manufacturing processes to dramatically enhance its manufacturability, assembly and maintainability. In this work, a novel design framework for structural/material with a desired mechanical performance and compelling topological design properties achieved using origami te...

Structure/material requires simultaneous consideration of both its design and manufacturing processes to dramatically enhance its manufacturability, assembly and maintainability. In this work, we present a novel design framework for structure/material with requested mechanical performances in virtue of the compelling properties of topological desig...