Kinematics of the retractable roofing module constructed from three roof panels with stiffening of the central panel

Abstract

Movable covers have accompanied man since the earliest times. Regardless of the evolution they have undergone over the centuries, they still perform the same function - protection against changing weather conditions. Nowadays, the adaptability of retractable roofing enables the optimal use of space that is becoming a multi-functional interior. Designers and constructors of retractable roofs are looking for modern concepts in terms of movement, or technological solutions of the structure that will ensure easier and more effective operation of the roof.In current projects, roofing modules contain a maximum of two roof panels. The article presents innovative research studies for retractable roofs, in which new solutions with an increased number of roof panels were investigated. Particular attention was paid to the construction of retractable roofs in terms of mechanisms used for their displacement. A roofing module was developed using the third-class mechanism. These structures were used as a movable skeleton for the roofing. The main objective of the work was the development of a roofing module consisting of three roof panels driven by one drive unit, and the determination of its geometry and kinematics. The research was based on parametric modeling and virtual prototyping of engineering objects. The advantage of the presented solution involves the reduction of the number of drive units with the increase of covering space, compared to the existing constructions with a movable roofing. The search of innovative solutions in the work required to adopt an interdisciplinary approach, combining knowledge in the field of construction and mechanical engineering as well as geometry and graphics based on digital technologies.