1. College of Mechanical and Electrical Engineering, Department of Mechanical Engineering, Northeast Forestry University, Harbin, China.
2. Department of Mechanical Engineering, Faculty of Engineering Science, University of Nyala, Nyala, Sudan.
3. Department of Mechanical Engineering, Avic Harbin Aircraft Industry Group Co., LTD, Harbin, China.
4. Mechanical Engineering Department, College of Engineering, The University of Bisha, Bisha, Saudi Arabia.
5. Department of Mechanical Engineering, College of Engineering, Sudan University of Science and Technology, Khartoum, Sudan.