International Journal of Advanced Manufacturing Technology, 2007
Piezo actuators can produce high precision mechanical movement. The problem is that they can only... more Piezo actuators can produce high precision mechanical movement. The problem is that they can only produce very limited displacement. This paper firstly reviews the different mechanical amplifier mechanisms that increase the displacement of the piezo actuator. A mechanical analysis for one mechanism, the diamond shaped mechanical amplifier, is presented. The key design parameters of a prototype diamond amplifier for use in pneumatic valves are detailed. The results of testing the amplifier are given and compared with the theory. It is found that the displacement of the prototype amplifier does not deviate more than 7% from the theoretical value.
Proceedings of The Institution of Mechanical Engineers Part H-journal of Engineering in Medicine, 2010
The feel of films, wrapping paper, cardboards, and other packaging materials are important to the... more The feel of films, wrapping paper, cardboards, and other packaging materials are important to the commercial success of foods. It is known from people's self-report studies that different surfaces provoke different subjective responses. There are several mechanical parameters, including friction, roughness, compliance, and thermal properties, which are important to the sensory feel. This paper describes the design, construction, and use of a multisensory measurement system for tactile sensation that can be used to evaluate the feel of different packaging materials. The experiments were conducted by sliding or pressing an artificial fingertip with embedded sensors against the surfaces of different samples which were fixed on a force table. The roughness, friction coefficients, compliance, and rate of change in the temperature were obtained. Forty volunteers were asked to touch and rate the samples by filling in questionnaires about how they felt. Strong correlations were found between people's feelings and the physical measurements.
This paper presents a mechanics study of the variations with position and time of stresses within... more This paper presents a mechanics study of the variations with position and time of stresses within the dermis and epidermis of a human fingertip when it is loaded and slid over textured surfaces. Its purpose is to examine how fingerprints interact with surface texture to cause ...
Research is being carried out at the University of Leeds in collaboration with the Faraday Packag... more Research is being carried out at the University of Leeds in collaboration with the Faraday Packaging Partnership that aims to enhance consumers' enjoyment of products by carefully designing the surfaces and textures of the packaging. The aim of the research reported in the poster is to develop a service for the members of the Faraday Packaging Partnership that could inform
Affective design aims to create a product that has expected levels of functionality and usability... more Affective design aims to create a product that has expected levels of functionality and usability but, additionally offers the user a positive emotional experience. Some success has been achieved by using the Kansei engineering approach but this has not been explicitly applied to packaging design.This paper reports on the first stages of an Affective Packaging Design research programme and presents
Research is being carried out at the University of Leeds in collaboration with the Faraday Packag... more Research is being carried out at the University of Leeds in collaboration with the Faraday Packaging Partnership that aims to enhance consumers' enjoyment of products by carefully designing the surfaces and textures of the packaging. The aim of the research reported in the poster is to develop a service for the members of the Faraday Packaging Partnership that could inform
International Journal of Advanced Manufacturing Technology, 2007
Piezo actuators can produce high precision mechanical movement. The problem is that they can only... more Piezo actuators can produce high precision mechanical movement. The problem is that they can only produce very limited displacement. This paper firstly reviews the different mechanical amplifier mechanisms that increase the displacement of the piezo actuator. A mechanical analysis for one mechanism, the diamond shaped mechanical amplifier, is presented. The key design parameters of a prototype diamond amplifier for use in pneumatic valves are detailed. The results of testing the amplifier are given and compared with the theory. It is found that the displacement of the prototype amplifier does not deviate more than 7% from the theoretical value.
Proceedings of The Institution of Mechanical Engineers Part H-journal of Engineering in Medicine, 2010
The feel of films, wrapping paper, cardboards, and other packaging materials are important to the... more The feel of films, wrapping paper, cardboards, and other packaging materials are important to the commercial success of foods. It is known from people's self-report studies that different surfaces provoke different subjective responses. There are several mechanical parameters, including friction, roughness, compliance, and thermal properties, which are important to the sensory feel. This paper describes the design, construction, and use of a multisensory measurement system for tactile sensation that can be used to evaluate the feel of different packaging materials. The experiments were conducted by sliding or pressing an artificial fingertip with embedded sensors against the surfaces of different samples which were fixed on a force table. The roughness, friction coefficients, compliance, and rate of change in the temperature were obtained. Forty volunteers were asked to touch and rate the samples by filling in questionnaires about how they felt. Strong correlations were found between people's feelings and the physical measurements.
This paper presents a mechanics study of the variations with position and time of stresses within... more This paper presents a mechanics study of the variations with position and time of stresses within the dermis and epidermis of a human fingertip when it is loaded and slid over textured surfaces. Its purpose is to examine how fingerprints interact with surface texture to cause ...
Research is being carried out at the University of Leeds in collaboration with the Faraday Packag... more Research is being carried out at the University of Leeds in collaboration with the Faraday Packaging Partnership that aims to enhance consumers' enjoyment of products by carefully designing the surfaces and textures of the packaging. The aim of the research reported in the poster is to develop a service for the members of the Faraday Packaging Partnership that could inform
Affective design aims to create a product that has expected levels of functionality and usability... more Affective design aims to create a product that has expected levels of functionality and usability but, additionally offers the user a positive emotional experience. Some success has been achieved by using the Kansei engineering approach but this has not been explicitly applied to packaging design.This paper reports on the first stages of an Affective Packaging Design research programme and presents
Research is being carried out at the University of Leeds in collaboration with the Faraday Packag... more Research is being carried out at the University of Leeds in collaboration with the Faraday Packaging Partnership that aims to enhance consumers' enjoyment of products by carefully designing the surfaces and textures of the packaging. The aim of the research reported in the poster is to develop a service for the members of the Faraday Packaging Partnership that could inform
Uploads
Papers by Brian Henson