STATIC-PERFORMANCE BASED COMPUTER-AIDED DESIGN OF A DDV AND ITS SENSITIVITY ANALYSIS

Authors

  • Saikat Mookherjee Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India
  • Sanjib Acharyya Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India
  • Kamalesh Majumdar Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India
  • Dipankar Sanyal Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India

Keywords:

direct drive valve, linear force motor, spool valve, flow gain, pressure gain, design, static performance analysis, sensitivity analysis

Abstract

Direct Drive valves (DDV) are gaining increasing acceptability for their simple configuration, low leakage, and low cost. Two major components of the present single-stage DDV are a spool valve and a linear force-motor. The objective of the present investigation was to formulate a design methodology and a static performance simulation tool for the DDV. The present work includes lumped and chiefly one-dimensional, non-linear field modelling of flow through the spool valve and magnetic flux in the motor. Detail modelling has been done only for leakage flow in the spool-bushing radial clearance of the spool valve, since it has critical bearing in the performance analysis. A computer-aided tool for designing a single stage valve, based on some additional simplifying assumptions of the lumped model, has been pre-sented. The static performance algorithm was developed on SIMULINK, without invoking the design-level simplifica-tions. The simulation tool has been used to carry out a design validation against the known performance of Moog Series D633 valve. Different designs of the valve, corresponding to different actuation specifications were obtained, and their static performances have been investigated. Also a sensitivity analysis has been carried out to study the effects of trac-tive air gap area ratio in the motor and port lap conditions in the spool valve.

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Author Biographies

Saikat Mookherjee, Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India

Saikat Mookherjee Born on September 1968 in Calcutta (India). Graduated in 1991 from Mechan-ical Engineering department, Jadavpur University, Calcutta. In 1993, completed his Masters thesis from Indian Institute of Science, Bangalore (India). Since 1994 joined as a faculty in Mechanical Engg., Jadavpur University. Member of the NEPTUNE Research Group in Mechani-cal Eng. Dept., Jadavpur University since 1994. Presently working on fluid power devices

Sanjib Acharyya, Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India

Sanjib Acharyya Born on August 1965 in Calcutta (Inida). Study of Mechanical Engineering at Shibpur B.E. College (Calcutta Universi-ty) in 1987. Post-graduation from Shibpur B.E. College (Calcutta University) in 1989. Since 1991 joined as a faculty in Mechanical Engg., Jadavpur University. Member of the NEPTUNE Research Group in Mechanical Eng. Dept., Jadav-pur University. Presently working on servo-valve design and fracture mechan-ics.

Kamalesh Majumdar, Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India

Kamalesh Majumdar Born on August 1944 in Calcutta (Inida). Graduated in 1966 and received Master’s degree in 1969 from Mechanical Engi-neering department, Jadavpur University, Calcutta. Since 1967 joined as a faculty in Mechanical Engg., Jadavpur University. Founder member of the NEPTUNE Research Group in Mechanical Eng. Dept., Jadavpur University. Presently working on fluid power and control.

Dipankar Sanyal, Mechanical Engineering Department, Jadavpur University, Calcutta-700032, India

Dipankar Sanyal Born on May 26, 1962 at Calcutta (India) Obtained Mechanical Engineering de-grees: Bachelors from Jadavpur Universi-ty at Calcutta and Masters degree from Institute of Science at Bangalore. Com-pleted doctoral thesis on spray combus-tion analysis at the Indian Institute of Science at Kanpur. Faculty in Mechanical Engineering Department, Jadavpur University since 1991. An active re-searcher in the NEPTUNE group in the areas of CFD, Spray Combustion and Fluid Power Control analyses.

References

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Published

2001-08-01

How to Cite

Mookherjee, S., Acharyya, S., Majumdar, K., & Sanyal, D. (2001). STATIC-PERFORMANCE BASED COMPUTER-AIDED DESIGN OF A DDV AND ITS SENSITIVITY ANALYSIS. International Journal of Fluid Power, 2(2), 47–63. Retrieved from https://journals.riverpublishers.com/index.php/IJFP/article/view/639

Issue

2001: Vol 02 Iss 2

Section

Original Article