Browsing Innovation in Manufacturing Systems and Technology (IMST) by Title

Now showing items 20-39 of 108

    • Design and Development of 3-DOF Modular Micro Parallel Kinematic Manipulator 

      Ng, C. C.; Ong, S. K.; Nee, Andrew Y. C. (2005-01)
      This paper presents the research and development of a 3-legged micro Parallel Kinematic Manipulator (PKM) for positioning in micro-machining and assembly operations. The structural characteristics associated with parallel ...

    • Direct Fabrication of Planar Grating by Ultrafast Laser Beam 

      Venkatakrishnan, K.; Hee, C.W.; Sivakumar, N.R.; Ngoi, Kok Ann Bryan (2002-01)
      Femtosecond laser pulse has been used for the machining of the gratings primarily due to its superior advantages over conventional continuous wave (CW) and long pulse lasers for micromachining. In this paper, we develop a ...

    • Droplet Bouncing Behavior in the Direct Solder Bumping Process 

      Hsiao, Wayne; Chun, Jung-Hoon (2003-01)
      This paper presents the results of an ongoing effort to develop a direct solder bumping process for electronics packaging. The proposed process entails delivering molten droplets onto specific locations on electronic devices ...

    • DSS Model for Profit Maximization at Customer Enquiry Evaluation Stage 

      Xiong, M.H.; Tor, Shu Beng; Bhatnagar, Rohit; Venkataramanaiah, S. (2004-01)
      This paper presents an optimal method and a heuristic approach which aims at maximizing the profit when responding to a set of customer enquiries under limited capacity. The model takes into consideration the quantity of ...

    • Dynamic Scheduling of Flexible Manufacturing Systems 

      Reddy, K. Rama Bhupal; Xie, Na; Subramaniam, Velusamy (2004-01)
      To date, group scheduling research has primarily focused on examining the performance of different group heuristics under various experimental conditions. However, the dynamic selection of group heuristics has not received ...

    • Efficient Methods for Manufacturing System Analysis and Design 

      Gershwin, Stanley B.; Maggio, Nicola; Matta, Andrea; Tolio, Tullio; Werner, Loren M. (2002-01)
      The goal of the research described here is to develop tools to assist the rapid analysis and design of manufacturing systems. The methods we describe are based on mathematical models of production systems. We combine earlier ...

    • An Extension to the Tactical Planning Model for a Job Shop: Continuous-Time Control 

      Teo, Chee Chong; Bhatnagar, Rohit; Graves, Stephen C. (2005-01)
      We develop an extension to the tactical planning model (TPM) for a job shop by the third author. The TPM is a discrete-time model in which all transitions occur at the start of each time period. The time period must be ...

    • Facilitating Mechanical Design with Augmented Reality 

      Poh, Y. L.; Nee, Andrew Y. C.; Youcef-Toumi, Kamal; Ong, S. K. (2005-01)
      By enhancing a real scene with computer generated objects, Augmented Reality (AR), has proven itself as a valuable Human-Computer Interface (HCI) in numerous application areas such as medical, military, entertainment and ...

    • Factory Models for Manufacturing Systems Engineering 

      Gershwin, Stanley B. (2003-01)
      We review MIT research in manufacturing systems engineering, and we describe current and possible future research activities in this area. This includes advances in decomposition techniques, optimization, token-based control ...

    • Femtosecond laser processing of crystalline silicon 

      Tran, D. V.; Lam, Yee Cheong; Zheng, H. Y.; Murukeshan, V. M.; Chai, J.C.; e.a. (2005-01)
      This paper reports the surface morphologies and ablation of crystalline silicon wafers irradiated by infra-red 775 nm Ti:sapphire femtosecond laser. The effects of energy fluences (below and above single-pulse modification) ...

    • Femtosecond Pulsed Laser Direct Writing System for Photomask Fabrication 

      Ngoi, Kok Ann Bryan; Venkatakrishnan, K.; Stanley, P.; Lim, L.E.N. (2002-01)
      Photomasks are the backbone of microfabrication industries. Currently they are fabricated by lithographic process, which is very expensive and time consuming since it is a several step process. These issues can be addressed ...

    • Focused ion beam direct fabrication of micro-optical elements: features compared with laser beam and electron beam direct writing 

      Fu, Yongqi; Ngoi, Kok Ann Bryan (2004-01)
      Three types of focused ion beam machine: focused ion beam milling (FIB milling), focused ion beam lithography (FIB lithography), and focused ion beam direct deposition (FIB deposition), are described in detail to compare ...

    • A Framework of Implementation of Collaborative Product Service in Virtual Enterprise 

      Ming, X.G.; Lu, Wen Feng (2003-01)
      To satisfy new market requirements, manufacturing industry has shifted from mass production that takes advantage of the scale of production, to quality management that optimizes the internal enterprise functions, to ...

    • Framework to Manage Customer Enquiries for SMEs 

      Xiong, M.H.; Tor, Shu Beng; Bhatnagar, Rohit; Venkataramanaiah, S. (2003-01)
      For most Smaller Manufacturing Enterprises (SMEs), how to manage customer enquiries at the customer enquiry stage is of great importance to maintain the competitive advantage and secure future customer orders. A lack of ...

    • Fulfillment of Rush Customer Orders under Limited Capacity 

      Xiong, M.H.; Tor, Shu Beng; Khoo, L.P.; Bhatnagar, Rohit (2002-01)
      Customer demand fulfillment is the business process within a company that determines how the customer demand is fulfilled. A rush order is the last minute customer order after the production plan of a company has been ...

    • Functional design of mechanical products based on behavior-driven function-environment-structure modeling framework 

      Zhang, W.Y.; Tor, Shu Beng; Britton, G.A.; Deng, Y.M. (2002-01)
      The relative significance of upstream design activity to downstream design activity is widely recognized, due to its critical role in determining the final product’s functionality. Although there are now some general ...

    • Functional Modeling in Conceptual Die Design 

      Tor, Shu Beng; Britton, G.A.; Zhang, W.Y. (2003-01)
      The use of function has been recognized as an important part of the design process over last two decades, especially at the conceptual design stage, due to its critical role in determining the final product’s functionality. ...

    • Gaussian Distribution Approximation for Localized Effects of Input Parameters 

      Rzepniewski, Adam K.; Hardt, David E. (2003-01)
      In the application of cycle-to-cycle control to manufacturing processes, the model of the process reduces to a gain matrix and a pure delay. For a general multiple input – multiple output process, this matrix shows the ...

    • Generation of Dielectrophoretic Force under Uniform Electric Field 

      Kua, C.H.; Yang, C.; Goh, S.; Isabel, R.; Youcef-Toumi, Kamal; e.a. (2006-01)
      Effective dipole moment method has been widely accepted as the de facto technique in predicting the dielectrophoretic force due to the non-uniform electric field. In this method, a finite-particle is modeled as an equivalent ...

    • A Generic Mechanism for Repairing Job Shop Schedules 

      Raheja, Amritpal Singh; Reddy, K. Rama Bhupal; Subramaniam, Velusamy (2003-01)
      Reactive repair of a disrupted schedule is a better alternative to total rescheduling, as the latter is a time consuming process and also results in shop floor nervousness. The schedule repair heuristics reported in the ...