摘要:
The aim of the invention is to create a device for damping vibrations, which can dampen and eliminate vibrational states better than previously known devices by being excited in a self-induced or externally induced manner, thus improving stability, durability, and usability while providing great reliability and using simple means and as little energy as possible. Said aim is achieved by a device for damping vibrations in a building, which comprises the following: at least one couple of mass elements (18) that are disposed on opposite sides of a rotating pin or swivel pin (16) around which the vibration is dampened. The mass elements are fixed to the ends of a beam (14) that is mounted so as to be rotatable about the rotating pin or swivel pin. The rotations or vibrations of the beam are predefined or influenced actively by means of an actuator (22) and/or passively by means of spring elements and/or damping elements.
摘要:
The invention relates to a construction device stabilization method for a construction device (1) standing or driving on a soft subgrade. The construction device (1) has working devices (13) and components which can be moved relative to one another and form a detectable changing system state, and a measurement of the inclination of the construction device (1) is taken continuously or is sampled with a high sampling rate. The method is characterized by the steps of generating a subgrade model with which the softness of the subgrade under load can be calculated in advance; calculating the load on the subgrade for each system state of the construction device (1); calculating a predictive inclination of the construction device (1) in advance while taking into consideration the system state and the subgrade model; comparing the predictive inclination of the construction device (1) with the currently measured inclination of the construction device (1) and iteratively adapting the subgrade model in order to minimize the difference between the predictive inclination and the measured inclination; comparing the predictive inclination for each system state with a specified tilting criterion while taking into consideration the subgrade model, and initiating safety measures if the tilting criterion is reached. The invention further relates to a construction device stabilization system comprising a construction device (1) standing or driving on a soft subgrade, said construction device having working devices (13) and components which can be moved relative to one another and which form a detectable changing system state, and comprising at least one inclination sensor (21). The system is characterized in that an analysis unit (3) and a control unit (4) are provided, wherein the analysis unit (3) contains a subgrade model with which the softness of the subgrade under load can be calculated in advance, and the analysis unit analyzes inclination data measured by the inclination sensor (21) while taking into consideration the respective system state and compares same with specified thresholds. If the thresholds are exceeded, the control unit (4) is actuated by the analysis unit (3) so as to change the system state in order to relieve the load on the construction device (1) in the tilting direction.
摘要:
Die Erfindung betrifft ein Verfahren zur Tragfähigkeitsverbesserung von in einem Baugrund (2) mit Porenraum gesetzten, offenen Profilen (1) mit einer Profilwandung (10) mit den Schritten: Setzen des Profils (1) in den Baugrund (2) und nachträgliches Verspannen des vom offenen Profil (1) umschlossenen Bereichs (21) des Baugrunds (2) mit der Profilwandung (10) durch Einbringen eines Verdrängungskörpers (4) in den vom offenen Profil (1) umschlossenen Bereich (21) des Baugrunds (2), wobei der Verdrängungskörper (4) beim Einsetzen in den vom offenen Profil (1) umschlossenen Bereich (21) des Baugrunds (2) einen Teil der Querschnittsdimension des offenen Profils (1) einnimmt. Ferner betrifft die Erfindung ein System aus einem offenen Profil (1) und einem einen Porenraum aufweisenden Baugrund (2), in dem das Profil (1) gesetzt ist, wobei der vom offenen Profil (1) umschlossene Bereich (21) des Baugrundes (2) durch einen eingebrachten Verdrängungskörper (4) mit der Profilwandung (10) des Profils (1) verspannt ist
摘要:
The invention relates to a lidar measuring system for detecting the presence and/or movement of particles and/or objects in a spatial region remote from the lidar measuring system, comprising an interferometer arrangement, and to a corresponding method using such a measuring system. The interferometer arrangement has a continuous-wave laser source (2), a photodetector arrangement (7), and optical components that are adapted so as to split light (23) emitted by the continuous-wave laser source (2), guide the light along a first optical path which forms a measuring branch (4) and along a second optical path which is separate from the first optical path and which forms a reference branch (5), and finally allow the light to strike the photodetector arrangement (7) in a spatially coherently superimposed manner. The reference branch (5) has a specified optical path length, and the measuring branch (4) has a measuring section (16), wherein the light is directed away from the measuring system in the measuring section in the direction of a spatial region remote from the measuring system and passes through the spatial region, and light scattered back in the direction of the measuring system by particles that can be found in the spatial region is received at the measuring system. Furthermore, an analyzing unit (9) is provided which is coupled to the photodetector arrangement (7) and which is adapted so as to receive the detector signal of the photodetector arrangement and detect the presence and/or movement of particles in the remote spatial region on the basis of the detector signal. The continuous-wave laser source (2) has a coherence length ranging from 0.1 to 100 m.
摘要:
Kühlvorrichtung zur Abfuhr eines Wärmestroms mit einem Kühlkörper und einem Kühlmittel, das durch oder an dem Kühlkörper in einem Kühlmittelkreislauf geführt wird und in diesem verdampft, wobei der Kühlkörper mit einem Latentwärmespeicher in thermischer Verbindung steht, wobei ein Phasenwechselmateiial des Latentwärmespeichers eine Phasenübergangstemperatur größer als eine vorbestimmte Temperatur des Kühlmittels besitzt, die derart gewählt ist, dass bei einer Erwärmung des Kühlköipers eine zwischen Kühlmittel und Kühlkörper auftretende Temperaturdifferenz kleiner oder gleich einer Temperaturdifferenz ist, bei der eine kritische Wärmestromdichte des Kühlmittels vorliegt.