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Journal Articles

Path Generative Model Based on Conditional β -Variational Auto Encoder for Four-Bar Mechanism Design

Anar Nurizada, Zhijie Lyu, Anurag Purwar
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Research Papers
J. Mechanisms Robotics. June 2025, 17(6): 061004.
Paper No: JMR-24-1110
https://doi.org/10.1115/1.4067169
Published Online: December 12, 2024
View Article titled, Path Generative Model Based on Conditional β -Variational Auto Encoder for Four-Bar Mechanism Design
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Topics: Artificial neural networks, Design, Kinematics, Linkages, Machine learning, Algorithms, Performance
Journal Articles

A Dataset of 3M Single-DOF Planar 4-, 6-, and 8-Bar Linkage Mechanisms With Open and Closed Coupler Curves for Machine Learning-Driven Path Synthesis

Anar Nurizada, Rohit Dhaipule, Zhijie Lyu, Anurag Purwar
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. April 2025, 147(4): 041702.
Paper No: MD-24-1483
https://doi.org/10.1115/1.4067014
Published Online: November 18, 2024
View Article titled, A Dataset of 3M Single-DOF Planar 4-, 6-, and 8-Bar Linkage Mechanisms With Open and Closed Coupler Curves for Machine Learning-Driven Path Synthesis
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Topics: Linkages, Robustness, Algorithms, Machine learning, Artificial neural networks, Machinery, Kinematics
Proceedings Papers

Generative Design of Planar Four-Bar Motions Using Conditional Variational Autoencoder

Amro Halwah, Anar Nurizada, Anurag Purwar
Proc. ASME. IDETC-CIE2024, Volume 3A: 50th Design Automation Conference (DAC), V03AT03A022, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-146347
https://doi.org/10.1115/DETC2024-146347
View Paper titled, Generative Design of Planar Four-Bar Motions Using Conditional Variational Autoencoder
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Topics: Algebra, Circuits, Dimensions, Errors, Filtration, Generative design, Kinematics, Linkages, Machine learning, Machinery
Proceedings Papers

A Matrix-Based Approach to Unified Synthesis of Planar Four-Bar Mechanisms for Motion Generation With Position, Velocity, and Acceleration Constraints

Xueting Deng, Anurag Purwar
Proc. ASME. IDETC-CIE2024, Volume 7: 48th Mechanisms and Robotics Conference (MR), V007T07A006, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-143028
https://doi.org/10.1115/DETC2024-143028
View Paper titled, A Matrix-Based Approach to Unified Synthesis of Planar Four-Bar Mechanisms for Motion Generation With Position, Velocity, and Acceleration Constraints
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Topics: Algorithms, Design, Dimensions, Engineering design processes, Kinematics, Linkages, Optimization
Proceedings Papers

Path Generative Model Based on Conditional β- Variational Auto Encoder for Mechanism Design

Anar Nurizada, Zhijie Lyu, Anurag Purwar
Proc. ASME. IDETC-CIE2024, Volume 7: 48th Mechanisms and Robotics Conference (MR), V007T07A002, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-143033
https://doi.org/10.1115/DETC2024-143033
View Paper titled, Path Generative Model Based on Conditional β- Variational Auto Encoder for Mechanism Design
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Topics: Design, Linkages, Algorithms, Artificial neural networks, Deep generative models, Deep learning, Machine learning
Proceedings Papers

Synthesizing Spatial RSCR Mechanisms for Path Generation Using a Deep Neural Network

Xueting Deng, Anar Nurizada, Anurag Purwar
Proc. ASME. IDETC-CIE2024, Volume 7: 48th Mechanisms and Robotics Conference (MR), V007T07A005, August 25–28, 2024
Publisher: American Society of Mechanical Engineers
Paper No: DETC2024-146416
https://doi.org/10.1115/DETC2024-146416
View Paper titled, Synthesizing Spatial RSCR Mechanisms for Path Generation Using a Deep Neural Network
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Topics: Artificial neural networks, Machine learning
Journal Articles

A Matrix-Based Approach to Unified Synthesis of Planar Four-Bar Mechanisms for Motion Generation With Position, Velocity, and Acceleration Constraints

Xueting Deng, Anurag Purwar
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Research Papers
J. Comput. Inf. Sci. Eng. December 2024, 24(12): 121003.
Paper No: JCISE-24-1065
https://doi.org/10.1115/1.4066661
Published Online: November 5, 2024
View Article titled, A Matrix-Based Approach to Unified Synthesis of Planar Four-Bar Mechanisms for Motion Generation With Position, Velocity, and Acceleration Constraints
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Topics: Design, Kinematics
Journal Articles

Point-based Models: A Unified Approach for Geometric Constraint Analysis of Planar N-Bar Mechanisms with Rotary, Sliding, and Rolling Joints

Accepted Manuscript
Zhijie Lyu, Anurag Purwar
Journal: Journal of Mechanisms and Robotics
Publisher: ASME
Article Type: Technical Briefs
J. Mechanisms Robotics.
Paper No: JMR-24-1500
https://doi.org/10.1115/1.4066963
Published Online: October 21, 2024
View Article titled, Point-based Models: A Unified Approach for Geometric Constraint Analysis of Planar N-Bar Mechanisms with Rotary, Sliding, and Rolling Joints
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Topics: Algorithms, Belts, Chain, Computer software, Constraint equations, Gears, Kinematics, Simulation, Stiffness, Wheels
Journal Articles

Deep Learning Conceptual Design of Sit-to-Stand Parallel Motion Six-Bar Mechanisms

Zhijie Lyu, Anurag Purwar
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. January 2025, 147(1): 013306.
Paper No: MD-24-1019
https://doi.org/10.1115/1.4066036
Published Online: August 21, 2024
View Article titled, Deep Learning Conceptual Design of Sit-to-Stand Parallel Motion Six-Bar Mechanisms
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Topics: Algorithms, Artificial neural networks, Conceptual design, Databases, Design, Kinematics, Linkages, Pipelines, Machine learning, Deep learning
Journal Articles

A Unified Real-Time Motion Generation Algorithm for Approximate Position Analysis of Planar N-Bar Mechanisms

Zhijie Lyu, Anurag Purwar, Wei Liao
Journal: Journal of Mechanical Design
Publisher: ASME
Article Type: Research Papers
J. Mech. Des. June 2024, 146(6): 063302.
Paper No: MD-23-1455
https://doi.org/10.1115/1.4064132
Published Online: December 15, 2023
View Article titled, A Unified Real-Time Motion Generation Algorithm for Approximate Position Analysis of Planar N-Bar Mechanisms
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Topics: Actuators, Algorithms, Kinematics, Linkages, Simulation, Optimization, Mechanical admittance
Journal Articles

Special Issue: Machine Learning and Representation Issues in CAD/CAM

Anurag Purwar, Kaushalkumar A. Desai, Stephen Canfield, Rahul Rai, Zhenguo Nie
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Guest Editorial
J. Comput. Inf. Sci. Eng. January 2024, 24(1): 010301.
Paper No: JCISE-23-1502
https://doi.org/10.1115/1.4064059
Published Online: December 7, 2023
View Article titled, Special Issue: Machine Learning and Representation Issues in CAD/CAM
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Topics: Computer-aided design, Machine learning, Manufacturing, Design, Artificial neural networks
Journal Articles

Transforming Hand-Drawn Sketches of Linkage Mechanisms Into Their Digital Representation

Anar Nurizada, Anurag Purwar
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Research Papers
J. Comput. Inf. Sci. Eng. January 2024, 24(1): 011010.
Paper No: JCISE-23-1088
https://doi.org/10.1115/1.4064037
Published Online: November 30, 2023
View Article titled, Transforming Hand-Drawn Sketches of Linkage Mechanisms Into Their Digital Representation
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Topics: Linkages, Sensors, Topology, Algorithms
Proceedings Papers

An Invariant Representation of Coupler Curves Using a Variational Autoencoder: Application to Path Synthesis of Four-Bar Mechanisms

Anar Nurizada, Anurag Purwar
Proc. ASME. IDETC-CIE2023, Volume 8: 47th Mechanisms and Robotics Conference (MR), V008T08A022, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-116892
https://doi.org/10.1115/DETC2023-116892
View Paper titled, An Invariant Representation of Coupler Curves Using a Variational Autoencoder: Application to Path Synthesis of Four-Bar Mechanisms
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Topics: Artificial neural networks, Conceptual design, Dimensions, Linkages, Machine learning, Machinery, Robots, Wavelets
Proceedings Papers

A Unified Design Equation to Represent Geometric Constraints of Spatial SS, ES and SE Dyads

Xueting Deng, Anurag Purwar, Qiaode Jeffrey Ge
Proc. ASME. IDETC-CIE2023, Volume 8: 47th Mechanisms and Robotics Conference (MR), V008T08A025, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-117282
https://doi.org/10.1115/DETC2023-117282
View Paper titled, A Unified Design Equation to Represent Geometric Constraints of Spatial SS, ES and SE Dyads
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Topics: Design, Algebra, Algorithms, Degrees of freedom, Dimensions, Fittings
Proceedings Papers

A Unified Real-Time Motion Generation Algorithm for Approximate Position Analysis of Planar N-Bar Mechanisms

Zhijie Lyu, Wei Liao, Anurag Purwar
Proc. ASME. IDETC-CIE2023, Volume 8: 47th Mechanisms and Robotics Conference (MR), V008T08A019, August 20–23, 2023
Publisher: American Society of Mechanical Engineers
Paper No: DETC2023-117159
https://doi.org/10.1115/DETC2023-117159
View Paper titled, A Unified Real-Time Motion Generation Algorithm for Approximate Position Analysis of Planar N-Bar Mechanisms
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Topics: Algorithms, Mechanical admittance, Simulation, Computation, Computer software, Degrees of freedom, Design, Errors, Kinematics, Linkages
Journal Articles

An Invariant Representation of Coupler Curves Using a Variational AutoEncoder: Application to Path Synthesis of Four-Bar Mechanisms

Anar Nurizada, Anurag Purwar
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Research Papers
J. Comput. Inf. Sci. Eng. January 2024, 24(1): 011008.
Paper No: JCISE-23-1067
https://doi.org/10.1115/1.4063726
Published Online: October 27, 2023
View Article titled, An Invariant Representation of Coupler Curves Using a Variational AutoEncoder: Application to Path Synthesis of Four-Bar Mechanisms
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Topics: Artificial neural networks, Linkages, Wavelets
Journal Articles

Special Issue: Challenges and Opportunities in Computing Research to Enable Next-Generation Engineering Applications

Janet K. Allen, Ehsan Esfahani, SK Gupta, Balan Gurumoorthy, Bin He, Ying Liu, John G. Michopoulos, Jitesh H. Panchal, Anurag Purwar, Kristina Wärmefjord
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Guest Editorial
J. Comput. Inf. Sci. Eng. December 2023, 23(6): 060301.
Paper No: JCISE-23-1453
https://doi.org/10.1115/1.4063437
Published Online: October 19, 2023
View Article titled, Special Issue: Challenges and Opportunities in Computing Research to Enable Next-Generation Engineering Applications
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Topics: Engineering systems and industry applications
Journal Articles

Deep Learning-Driven Design of Robot Mechanisms

Anurag Purwar, Nilanjan Chakraborty
Journal: Journal of Computing and Information Science in Engineering
Publisher: ASME
Article Type: Review Articles
J. Comput. Inf. Sci. Eng. December 2023, 23(6): 060811.
Paper No: JCISE-23-1055
https://doi.org/10.1115/1.4062542
Published Online: June 5, 2023
View Article titled, Deep Learning-Driven Design of Robot Mechanisms
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Topics: Artificial neural networks, Design, Robotics
Proceedings Papers

Design and Development of a Sit-To-Stand Device Using A Variational Autoencoder-Based Deep Neural Network

Zhijie Lyu, Anurag Purwar
Proc. ASME. IDETC-CIE2022, Volume 7: 46th Mechanisms and Robotics Conference (MR), V007T07A027, August 14–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: DETC2022-90494
https://doi.org/10.1115/DETC2022-90494
View Paper titled, Design and Development of a Sit-To-Stand Device Using A Variational Autoencoder-Based Deep Neural Network
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Topics: Artificial neural networks, Design, Machine learning
Proceedings Papers

Transforming Hand-Drawn Sketches of Linkage Mechanisms Into Their Digital Representation

Anurag Purwar, Anar Nurizada
Proc. ASME. IDETC-CIE2022, Volume 7: 46th Mechanisms and Robotics Conference (MR), V007T07A079, August 14–17, 2022
Publisher: American Society of Mechanical Engineers
Paper No: DETC2022-90495
https://doi.org/10.1115/DETC2022-90495
View Paper titled, Transforming Hand-Drawn Sketches of Linkage Mechanisms Into Their Digital Representation
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Topics: Linkages, Simulation