Zhiwei Mao

Title: Zhiwei Mao - Innovator in Reciprocating Machinery Fault Diagnosis

Introduction

Zhiwei Mao is an accomplished inventor based in Beijing, China, known for his innovative approaches in the field of reciprocating machinery. With a total of two patents to his name, his work focuses on improving fault diagnosis and load identification methods, demonstrating significant advancements in machine intelligence.

Latest Patents

Mao's latest inventions include two patents that showcase his expertise in fault diagnosis and load identification:

1. **Fault Diagnosis Method of Reciprocating Machinery Based on Keyphasor-Free Complete-Cycle Signal**

This patent introduces a method that eliminates the reliance on keyphasor signals for fault diagnosis. The technique involves building a complete-cycle vibration signal image library, training an image recognition model, acquiring complete-cycle data on a keyphasor-free basis, and employing an autoencoder for automatic feature extraction. The use of a deep cascade convolutional neural network (CNN) enhances the reliability and efficiency of the fault diagnosis process.

2. **Load Identification Method for Reciprocating Machinery Based on Information Entropy and Envelope Features of Axis Trajectory of Piston Rod**

In this innovative method, Mao calculates the axial center distribution of a piston rod and extracts its features using an improved envelope method combined with information entropy evaluation. The approach ensures precise load identification through dimensionality reduction and the training of a neural network classifier, verified against actual data from a reciprocating compressor.

Career Highlights

Zhiwei Mao is associated with the Beijing University of Chemical Technology, where he contributes to research and development in the field of mechanical engineering. His focus on integrating advanced algorithms and machine learning techniques into traditional engineering disciplines marks a significant shift toward smarter engineering solutions.

Collaborations

Throughout his career, Mao has collaborated with esteemed colleagues, including Jinjie Zhang and Zhinong Jiang. These partnerships have fostered an environment of innovation and led to the successful development of his patented technologies.

Conclusion

Zhiwei Mao stands out as a pivotal figure in the realm of reciprocating machinery innovations. His patents advance the understanding and functionality of fault diagnosis and load identification, ultimately contributing to more efficient and reliable machinery operations. His ongoing work at the Beijing University of Chemical Technology positions him as a key player in the engineering community, paving the way for future advancements in the field.