Beatrice Lang
CHS Ewis electrical harness design is a process that involves creating a detailed drawing that captures the design intent and requirements for a wiring harness. It utilizes software tools such as Capital Logic, Capital Harness XC, and Capital Integrator to provide a full electrical design capability, from logical schematics to physical wiring generation. The design process focuses on data management to solve the complexity of electrical design, providing a data-centric backbone that integrates every part of the design process. This allows for efficient cost modeling, enabling engineers to create accurate models and quotations while reducing new product introduction times through digital data continuity and intellectual property reuse. The design process also includes change management capabilities and the ability to generate 3D models and detailed diagrams.
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What You'll Learn
CHS Capital Logic and XC for electrical harness design
CHS is the leading design software for Electrical Systems Design and Harness Engineering. It is used by leading automotive, aerospace, and harness makers and is built to support the complex demands of modern integrated design processes. CHS is differentiated from other design tools by its data-centricity, which automates many steps in the design process, streamlines the flow of information, and eliminates time-consuming and error-prone data-entry tasks.
CHS Capital Logic and XC are essential software packages for wiring harness creation. Capital Logic helps create digital wiring harness designs and implement logical designs in physical wiring harnesses. It is a schematic design tool that enables simulation analysis for circuit validation. Capital XC assists in creating 2D drawings and layouts, which are used to create form boards and BOMs (Bill of Materials). Together, these tools provide a full electrical design capability, from logical schematics to fully detailed and costed harness drawings.
The generative design process in CHS is based on Capital Logic, Capital Integrator, and Capital Harness XC applications. This process provides a full electrical design capability, from logical schematics to physical/topological wiring generation and fully detailed and costed harness drawings. Add-on applications, such as Capital Costing and Capital Modular Harness, enhance the functionality of the generative design process. Capital Costing provides accurate harness manufacturing costs, while Capital Modular Harness manages the construction of harnesses from sub-assemblies.
The CHS graphical user interface (GUI) consists of a common set of programming objects. The "Control and A" function, for instance, allows users to select all designs on the left portion of the dialog box. The CHS platform also offers process management capabilities, allowing users to define and automatically apply project norms such as naming conventions, design rule check patterns, and diagram style templates. Additionally, CHS facilitates change processes with multiple change management capabilities, including tabular and graphical difference reports, version management, and compatibility control.
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Electrical harness design cost modelling
CHS is a design software for Electrical Systems Design and Harness Engineering used by leading automotive and aerospace industries. It is built to support the complex demands of modern integrated design processes. The Interactive Wiring Design process is based on the Capital Logic and Capital Harness XC applications to provide a full electrical design capability from logical schematics to fully detailed and costed harness drawings.
One approach to cost modelling is to consider the number of part numbers or harness levels and assign a standard cost to each. While this method provides a simplified estimation of costs, it may not capture the true complexity and variability of costs. For example, an automotive wire harness can have multiple versions and variations, making it challenging to assign a single part number.
To address this challenge, advanced cost modelling techniques, such as the Capital Costing add-on application within CHS, can be utilized. Capital Costing provides highly accurate harness manufacturing costs by considering both process and materials. It incorporates sophisticated models with adjustable parameters to account for the unique characteristics of each harness design. Additionally, computer-aided design software like HarnWare can assist in generating clear and reliable drawings, providing detailed information on materials, equipment, and assembly instructions, enabling efficient production and cost estimation.
Overall, electrical harness design cost modelling requires a balance between simplicity and detail. Organizations need to determine the appropriate level of complexity in their models to guide engineers towards optimal design decisions while ensuring that costs are accurately captured and reflected in the final product.
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Design data management
CHS is a design software for Electrical Systems Design and Harness Engineering, used in the automotive, aerospace, and harness-making industries. It is built to manage the complex demands of modern integrated design processes, with a fundamental belief in the centrality of design data management in solving electrical design complexity.
CHS provides a data-centric backbone that integrates every part of the design process, differentiating it from other design tools. This data-centricity automates many steps, streamlines information flow, and eliminates time-consuming and error-prone manual tasks.
The data-centric architecture of CHS facilitates change processes with multiple capabilities, including tabular and graphical difference reports, version management, and compatibility control. It also incorporates project norms such as naming conventions, design rule check patterns, and diagram style templates, which can be defined and automatically applied.
The Interactive Wiring Design Process, based on Capital Logic and Capital Harness XC applications, offers a full electrical design capability from logical schematics to fully detailed and costed harness drawings. Add-on applications like Capital Costing provide accurate manufacturing cost estimates, while Capital Modular Harness manages the construction of harnesses from sub-assemblies.
EWIS designers must consider the best balance of electrical, mechanical, chemical, and thermal properties for each application. They ensure wires are appropriately sized, routed, and protected to prevent chafing and interference with crucial aircraft controls.
Overall, effective design data management in CHS EWIS electrical harness design streamlines the design process, ensures compliance with regulations, and optimizes performance, safety, and cost-efficiency.
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Interactive wiring design process
CHS is the leading design software for Electrical Systems Design and Harness Engineering. It is used by leading automotive and aerospace industries to support the complex demands of modern integrated design processes. The Interactive Wiring Design Process is based on the Capital Logic and Capital Harness XC applications to provide a full electrical design capability from logical schematics to fully detailed and costed harness drawings.
The generative design process is based on the Capital Logic, Capital Integrator, and Capital Harness XC applications. It provides a full electrical design capability from logical schematics through physical/topological wiring generation, and onto fully detailed and costed harness drawings. Add-on applications include Capital Costing, which provides highly accurate harness manufacturing costs (process and materials) based on sophisticated models containing more than three hundred adjustable parameters.
The Electrical Wiring Interconnect Systems (EWIS) standard is a key element of the Federal Aviation Regulations (FAR) Part 25 mandates and has become a certification requirement for all new commercial aircraft. EWIS is influencing other industries, including rotorcraft and defense platforms. These compliance requirements can significantly impact the cost if not anticipated from the beginning of an aircraft design project.
An integrated COTS design solution offers features like cross-domain correlation and efficient, early capture of EWIS requirements for consistent application over the life of a project. A comprehensive COTS toolset can make the path to EWIS compliance more manageable. A more systematic and automated methodology is needed to tackle the sheer number of EWIS components in an aircraft, diverse aircraft configurations, and lifecycle change management challenges.
The interactive wiring design process allows users to edit a PDF to add text or change properties. It also enables dynamic diagrams that respond to hovering or selecting.
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Electrical harness design for military combat vehicles
Electrical wiring and cable assemblies for military combat vehicles require exceptional reliability and durability to ensure safe and dependable equipment operation. These vehicles often operate in harsh conditions for extended periods without the opportunity for extensive repairs or adjustments, so it is crucial to design electrical harness systems that can withstand these challenges.
One of the key considerations in electrical harness design for military vehicles is the selection of appropriate materials. Conductors made from high-grade materials such as tinned copper or silver-plated copper offer superior conductivity, corrosion resistance, and high-temperature tolerance. Insulation materials like cross-linked polyethylene (XLPE), fluoropolymers (PTFE), or silicone provide enhanced resistance to heat, chemicals, and abrasion. Braided shields, foil wraps, or a combination of both can be incorporated to protect against electromagnetic interference (EMI) and radio frequency interference (RFI).
Military-grade connectors must also meet stringent standards, offering high resistance to environmental factors and featuring secure locking mechanisms. Gold-plated contacts within these connectors ensure low electrical resistance and prevent corrosion. Sealed connections are designed to prevent the ingress of dust, moisture, and contaminants, maintaining the integrity of the electrical connection.
Flexibility is another important design aspect. Military vehicles often experience frequent vibrations and movements, so the electrical harness should be designed with flexible sections that allow for movement without placing stress on the wires. Redundant paths for critical systems ensure that a single failure in a wire or connector does not compromise the entire system.
The unique demands of military applications also require efficient use of space and weight reduction. Smaller wires enable the creation of more compact wire looms, contributing to improved vehicle performance and maneuverability. Additionally, the electrical harness design process should incorporate regulatory and industry standards to ensure compliance and safety.
Overall, the design of electrical harnesses for military combat vehicles necessitates a careful balance between durability, performance, and safety. By selecting appropriate materials, incorporating flexible and redundant design features, optimizing space and weight, and adhering to industry standards, electrical harnesses can be engineered to meet the rigorous demands of military combat vehicles.
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Frequently asked questions
CHS is the leading design software for Electrical Systems Design and Harness Engineering. It is used by leading automotive and aerospace industries to support the complex demands of modern integrated design processes.
EWIS stands for Electrical Wiring Interconnect System. It is a unified approach to aircraft wiring design and layout that encompasses all wires and wired devices that transmit electrical energy.
CHS EWIS electrical harness design is based on the Capital Logic, Capital Integrator, and Capital Harness XC applications. It provides a full electrical design capability from logical schematics to physical/topological wiring generation, and onto fully detailed and costed harness drawings.
CHS is data-centric, which differentiates it from other design tools. It provides a step change in design speed and quality by automating many steps in the design process, streamlining the flow of information, and eliminating time-consuming and error-prone tasks.
