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Papers by Colin Hatch

Research paper thumbnail of Development of the Atmospheric Icing Patch (AIP) under the SENS4ICE Programme

SAE Technical Paper Series

The European Union’s Horizon 2020 programme has funded the SENS4ICE (Sensors for Certifiable Hybr... more The European Union’s Horizon 2020 programme has funded the SENS4ICE (Sensors for Certifiable Hybrid Architectures for Safer Aviation in Icing Environment) international collaboration flagship programme. Under this programme a number of different organizations have developed ice detection technologies, specifically aimed at providing information to differentiate between ‘classical’ Appendix C icing conditions and the larger droplets found in Appendix O icing. As a partner within the SENS4ICE project, AeroTex UK has developed an ice detection concept called the Atmospheric Icing Patch (AIP). The sensor utilizes a network of iso-thermal sensors to detect icing and differentiate between small and large droplet icing conditions. This paper discusses the development of the sensor technology with a focus on the outcomes of the flight testing performed on the Embraer Phenom 300 platform during early 2023.The work in the programme is built on previous studies performed by AeroTex UK into a p...

Research paper thumbnail of Refinement of Dynamic Finite Element Models from the Garteur AG14 Collaborative Programme

48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007

The finite element model is the main tool used by helicopter manufacturers for the analysis of he... more The finite element model is the main tool used by helicopter manufacturers for the analysis of helicopter structures. The particular application addressed in this paper is for the prediction of vibration. High fidelity models that can accurately represent the structural dynamics are the key to producing effective low vibration designs. Helicopters with 'jet' smooth comfort are demanded by discriminating customers who also require ownership of vehicles with high reliability, low maintenance and reduced through life costs.

Research paper thumbnail of Active Vibration Control of the Lynx Helicopter Airframe

48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007

Three mathematical models of the same structure, the Lynx airframe, are used in th is generic stu... more Three mathematical models of the same structure, the Lynx airframe, are used in th is generic study together with various types of hub loads to determine optimal actuator configurations for an active vibration control system. One of the mathematical models is a FE model while the two others are based on data from modal analyses of the same airframe but at low and high forcing level. An exhaustive search is used to establish a ranking of the top 100 actuator configurations for each combination of mathematical model and type of hub load excitation. The actuator configurations are compared with regard to locations and predicted reductions. An active vibration control experiment is conducted on the Lynx airframe using the filtered x-LMS algorithm.

Research paper thumbnail of The Building Blocks for a Hybrid ElectroThermal-ElectroMechanical Simulation Tool

SAE Technical Paper Series, 2011

Research paper thumbnail of Methods for Refinement of Structural Finite Element Models: Summary of the GARTEUR AG14 Collaborative Programme

The finite element model is the main tool used by helicopter manufacturers for the analysis of he... more The finite element model is the main tool used by helicopter manufacturers for the analysis of helicopter structures and in particular for the prediction of vibration. High fidelity models that can accurately represent the structural dynamics are the key to producing effective low vibration designs. Helicopters with ‘jet’ smooth comfort are demanded by discriminating customers who also require ownership of vehicles with high reliability, low maintenance and reduced through life costs. The finite element model is an important tool in the assessment of aircraft modifications after the initial design and production when adverse vibration levels may become apparent. At this stage a structure is available and measured dynamic data from a shake test may be used to validate and improve the initial finite element model. The model derived from test data is not, by itself, comprehensive enough to allow the study and manipulation of the structural dynam-ics but its role in conjunction with the...

Research paper thumbnail of Non-Spherical Particle Trajectory Modelling for Ice Crystal Conditions

SAE Technical Paper Series

Research paper thumbnail of Global Control of Helicopter Vibrations Using a Semi-Active Vibration Control System

47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 14th AIAA/ASME/AHS Adaptive Structures Conference<BR> 7th, 2006

Research paper thumbnail of Initial Results from a Hybrid Electro-Thermal Electro-Mechanical Simulation Tool (HETEMS)

SAE Technical Paper Series, 2015

Research paper thumbnail of Analysis of Ice Release from a Rotating Propeller

SAE Technical Paper Series, 2015

Research paper thumbnail of The Building Blocks for a Hybrid ElectroThermal-ElectroMechanical Simulation Tool

SAE Technical Paper Series, 2011

Research paper thumbnail of Development of the Atmospheric Icing Patch (AIP) under the SENS4ICE Programme

SAE Technical Paper Series

The European Union’s Horizon 2020 programme has funded the SENS4ICE (Sensors for Certifiable Hybr... more The European Union’s Horizon 2020 programme has funded the SENS4ICE (Sensors for Certifiable Hybrid Architectures for Safer Aviation in Icing Environment) international collaboration flagship programme. Under this programme a number of different organizations have developed ice detection technologies, specifically aimed at providing information to differentiate between ‘classical’ Appendix C icing conditions and the larger droplets found in Appendix O icing. As a partner within the SENS4ICE project, AeroTex UK has developed an ice detection concept called the Atmospheric Icing Patch (AIP). The sensor utilizes a network of iso-thermal sensors to detect icing and differentiate between small and large droplet icing conditions. This paper discusses the development of the sensor technology with a focus on the outcomes of the flight testing performed on the Embraer Phenom 300 platform during early 2023.The work in the programme is built on previous studies performed by AeroTex UK into a p...

Research paper thumbnail of Refinement of Dynamic Finite Element Models from the Garteur AG14 Collaborative Programme

48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007

The finite element model is the main tool used by helicopter manufacturers for the analysis of he... more The finite element model is the main tool used by helicopter manufacturers for the analysis of helicopter structures. The particular application addressed in this paper is for the prediction of vibration. High fidelity models that can accurately represent the structural dynamics are the key to producing effective low vibration designs. Helicopters with 'jet' smooth comfort are demanded by discriminating customers who also require ownership of vehicles with high reliability, low maintenance and reduced through life costs.

Research paper thumbnail of Active Vibration Control of the Lynx Helicopter Airframe

48th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2007

Three mathematical models of the same structure, the Lynx airframe, are used in th is generic stu... more Three mathematical models of the same structure, the Lynx airframe, are used in th is generic study together with various types of hub loads to determine optimal actuator configurations for an active vibration control system. One of the mathematical models is a FE model while the two others are based on data from modal analyses of the same airframe but at low and high forcing level. An exhaustive search is used to establish a ranking of the top 100 actuator configurations for each combination of mathematical model and type of hub load excitation. The actuator configurations are compared with regard to locations and predicted reductions. An active vibration control experiment is conducted on the Lynx airframe using the filtered x-LMS algorithm.

Research paper thumbnail of The Building Blocks for a Hybrid ElectroThermal-ElectroMechanical Simulation Tool

SAE Technical Paper Series, 2011

Research paper thumbnail of Methods for Refinement of Structural Finite Element Models: Summary of the GARTEUR AG14 Collaborative Programme

The finite element model is the main tool used by helicopter manufacturers for the analysis of he... more The finite element model is the main tool used by helicopter manufacturers for the analysis of helicopter structures and in particular for the prediction of vibration. High fidelity models that can accurately represent the structural dynamics are the key to producing effective low vibration designs. Helicopters with ‘jet’ smooth comfort are demanded by discriminating customers who also require ownership of vehicles with high reliability, low maintenance and reduced through life costs. The finite element model is an important tool in the assessment of aircraft modifications after the initial design and production when adverse vibration levels may become apparent. At this stage a structure is available and measured dynamic data from a shake test may be used to validate and improve the initial finite element model. The model derived from test data is not, by itself, comprehensive enough to allow the study and manipulation of the structural dynam-ics but its role in conjunction with the...

Research paper thumbnail of Non-Spherical Particle Trajectory Modelling for Ice Crystal Conditions

SAE Technical Paper Series

Research paper thumbnail of Global Control of Helicopter Vibrations Using a Semi-Active Vibration Control System

47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference<BR> 14th AIAA/ASME/AHS Adaptive Structures Conference<BR> 7th, 2006

Research paper thumbnail of Initial Results from a Hybrid Electro-Thermal Electro-Mechanical Simulation Tool (HETEMS)

SAE Technical Paper Series, 2015

Research paper thumbnail of Analysis of Ice Release from a Rotating Propeller

SAE Technical Paper Series, 2015

Research paper thumbnail of The Building Blocks for a Hybrid ElectroThermal-ElectroMechanical Simulation Tool

SAE Technical Paper Series, 2011

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