Recent Patents on Engineering - Volume 16, Issue 1, 2022

Background: Crop straw is a valuable renewable biological resource. In this study, a mobile straw granulator was designed to fully and efficiently use crop straw. The key crushing mechanism device of the mobile straw granulator was also designed in detail. Method: The first three natural frequencies and vibration modes of the roller crusher were obtained by applying ANSYS-Workbench software to the modal analysis of th Read More

According to the universal one-dimensional consolidation equation introduced by Gibson, the governing equation with the excess pore water pressure as the control variable is derived, and the Fourier series solution under the boundary condition of single-sided drainage is deduced in detail by the standard mathematical and physical method. It verifies the correspondence between the analytical solution and the numerical so Read More

Background: As an important method of remanufacturing, laser cladding can be used to obtain parts with specific shapes by stacking the materials layer by layer. The formation mechanism of laser cladding determines the “Staircase effect”, which makes the surface quality hardly meet the dimensional accuracy of the parts. Therefore, the subsequent machining must be performed to improve the dimensional accuracy and Read More

The security of information is the major problem faced in today’s digital environment. Biometric Systems help in achieving high-end security at precise performance requirements for various applications. This paper surveys the present multimodal and unimodal biometric-based authentication systems which are in use, and their future possibilities. The authentication techniques that can identify the individual usin Read More

Cr12MoV hardened steel is widely used in the manufacturing of stamping die because of its high strength, high hardness, and good wear resistance. As a kind of mainstream cutting technology, high-speed machining has been applied in the machining of Cr12MoV hardened steel. Based on the review of a large number of literature, the development of high-speed machining of Cr12MoV hardened steel was summar Read More

Background: Bearing has been widely used in automotive, aerospace, electronics industry and other fields. Its pre-tightening technology is one of the most critical technologies. It has an important influence on the accuracy, speed, stiffness and temperature rise of the spindle. Proper pre-tightening force can eliminate bearing clearance and improve machining accuracy and efficiency of machine tools. Therefore, the devel Read More

Background: The development of deep learning technology has promoted the industrial intelligence, and automatic driving vehicles have become a hot research direction. As to the problem that pavement potholes threaten the safety of automatic driving vehicles, the pothole detection under complex environment conditions is studied. Objective: The goal of the work is to propose a new model of pavement pothole detection b Read More

Background: Thin-walled parts of aluminum alloy are easy to occur in machining deformation due to the characteristics of thin wall, low rigidity, and complex structure. Objective: To reduce and control the machining deformation, it is necessary to select reasonable machining parameters. Methods: The influence of milling parameters on the milling forces, milling temperature, and machining deformation was analyzed throu Read More

Background: In the whole design process of modular fuel tank, there are some unreasonable phenomena. As a result, there are some defects in the design of modular fuel tank, and the function does not meet the requirements in advance. This paper studies this problem. Objective: Through on-the-spot investigation of the factory, a mechanical design process model is designed. The model can provide reference for product d Read More