Abstract: A system and a method that enable a digital thread-driven sustainability design wherein a Digital Thread (DT) is proposed as a distributed enterprise software platform that is designed for managing lifecycle sustainability data of a product throughout its lifecycle. A digitally integrated total lifecycle product design using a Digital Thread model is provided that enables one to perform predictive computational modeling for multi-lifecycle product design. The Digital Thread enables a set of predictive computational modeling tools for total lifecycle product design optimization, simulation and uncertainty and risk analysis integrated to access data through the Digital Thread. A systematic approach for development and analysis of a lifecycle sustainability model of a designed product is provided. Also, a central repository concept or a single point of access to the lifecycle sustainability data is provided.

Abstract: A method for operating an air handling unit of an HVAC system. The method includes opening an outside air flow control device to enable breathing air flow during a high outdoor air time period to a first zone having a first number of occupants and a second zone having a second number of occupants that is less than the first number of occupants. The outside air flow control device is then closed to enable conditioning air flow during a low outdoor air time period to the first and second zones. Further, a variable air volume (VAV) air flow control device provides desired amounts of breathing air to the first and second zones suitable for the first and second number of occupants, respectively. A VAV air temperature control device then provides conditioning air to the first and second zones having a suitable temperature for the first and second number of occupants.

Abstract: A method for operating an air handling unit of an HVAC system. The method includes opening an outside air flow control device to enable breathing air flow during a high outdoor air time period to a first zone having a first number of occupants and a second zone having a second number of occupants that is less than the first number of occupants. The outside air flow control device is then closed to enable conditioning air flow during a low outdoor air time period to the first and second zones. Further, a variable air volume (VAV) air flow control device provides desired amounts of breathing air to the first and second zones suitable for the first and second number of occupants, respectively. A VAV air temperature control device then provides conditioning air to the first and second zones having a suitable temperature for the first and second number of occupants.

Abstract: A method, apparatus and computer-readable medium for generating a graphical tree based on a hierarchical structure includes receiving a request to convert a first hierarchical structure into a first graphical tree. Each of a plurality of elements of the first hierarchical structure, and the relationships among the plurality of elements are identified. A first graphical tree is generated based on each of the plurality of elements and the relationships among the elements. The first graphical tree is then displayed. Additional graphical trees can be displayed simultaneously and associations between nodes of the different graphical trees can be designated.

Abstract: A three-dimensional view that includes a plurality of systems engineering models may be provided. A first systems engineering model and a second systems engineering model of the plurality of systems engineering models may be received. The three-dimensional view that includes the first systems engineering model and the second systems engineering model may be generated. The first systems engineering model may be projected onto a first plane of a three-dimensional coordinate system. The second systems engineering model may be projected onto a second plane of the three-dimensional coordinate system. The second plane is different than the first plane. The three-dimensional view may be displayed.

Abstract: Methods for product data management and corresponding systems and computer-readable mediums. A method includes receiving systems engineering data including a plurality of components and identifying interfaces from the plurality of components. The method includes synthesizing a network between the plurality of components. The method includes creating a simulation model, based on the network, by mapping the plurality of components to a corresponding plurality of simulation components and generating a simulation and control code according to the simulation model and the simulation components.

Abstract: A method, apparatus and computer-readable medium for generating a graphical tree based on a hierarchical structure includes receiving a request to convert a first hierarchical structure into a first graphical tree. Each of a plurality of elements of the first hierarchical structure, and the relationships among the plurality of elements are identified. A first graphical tree is generated based on each of the plurality of elements and the relationships among the elements. The first graphical tree is then displayed. Additional graphical trees can be displayed simultaneously and associations between nodes of the different graphical trees can be designated.